Taco SKV SelfSensing Installation, Operation And Maintenance Manual

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SKV SelfSensing

Vertical In-line Pump

Installation, Operation, and Maintenance Manual

302-365

SUPERSEDES: January 14, 2014

Plant ID: 001-4208

Table of Contents

1 SAFETY REQUIREMENTS. . . . . . . . . . . . . . . . . . . . 2

2 GENERAL INSTALLATION REQUIREMENTS. . . . . 2

2.1 Receiving Pump. . . . . . . . . . . . . . . . . . . . . . . . . 2

2.2 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.3 Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3.1 Routine Inspections . . . . . . . . . . . . . . . . . . . . . . 2

3.2 Close Coupled Pumps . . . . . . . . . . . . . . . . . . . .3

3.3 Close Coupled Motors . . . . . . . . . . . . . . . . . . . . 3

3.4 Mechanical Seal. . . . . . . . . . . . . . . . . . . . . . . . . 3

4 DIS-ASSEMBLY AND RE-ASSEMBLY. . . . . . . . . . . 3

4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

4.2 Dis-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4.3 Re-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

5 PUMP PIPING - GENERAL. . . . . . . . . . . . . . . . . . . . 4

6 APPLICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

7 MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . 4

7.1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

7.2 VFD Mounting to Pump . . . . . . . . . . . . . . . . . . . 4

7.3 VFD Mounting to Wall . . . . . . . . . . . . . . . . . . . . 6

7.4 Pump Piping – Detailed . . . . . . . . . . . . . . . . . . . 6

8 ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . 9

8.1 Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . 9

8.2 Electrical Installation . . . . . . . . . . . . . . . . . . . .10

8.3 Grounding Requirements. . . . . . . . . . . . . . . . . 12

8.4 Typical Terminal Wiring Configurations . . . . . .18

9 USER INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . 28

9.1 Local Control Panel . . . . . . . . . . . . . . . . . . . . . 28

9.2 Backup and Copying Parameter Settings . . . . 30

9.3 Password Protection . . . . . . . . . . . . . . . . . . . . 31

10 PUMP CONTROL SET-UPS . . . . . . . . . . . . . . . . . 34

10.1 SelfSensing Description. . . . . . . . . . . . . . . . . 34

10.2 Set-up Menu . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.3 Variable Flow Control (Flow Compensation) . 35

10.4 Constant Flow Control . . . . . . . . . . . . . . . . . . 35

10.5 Constant Pressure Control. . . . . . . . . . . . . . . 36

10.6 Sequencing (Standby Pump Alternation). . . . 36

EFFECTIVE: June 5, 2017

11 START-UP PROCEDURE . . . . . . . . . . . . . . . . . . 37

11.1 Check Points Before First Start . . . . . . . . . . . 37

11.2 Check Motor Rotation . . . . . . . . . . . . . . . . . . 37

11.3 Start Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . 37

11.4 Verify Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . 38

12 SYSTEM BALANCING . . . . . . . . . . . . . . . . . . . . . 39

12.1 About SelfSensing ProBalance . . . . . . . . . . . 39

12.2 My Personal Menu for ProBalance . . . . . . . . 40

12.3 Balancing Procedure . . . . . . . . . . . . . . . . . . . 41

12.4 Additional Settings. . . . . . . . . . . . . . . . . . . . . 49

13 MENUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

14 WARNINGS AND ALARMS . . . . . . . . . . . . . . . . . 61

14.1 Supplemental Warning and Alarm Settings . . 70

15 CASING/IMPELLER WEAR RING CLEARANCES 73

16 SKS PUMP PROBLEM ANALYSIS . . . . . . . . . . . 74

17 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . 75

17.1 Power-dependent Specifications . . . . . . . . . . 75

17.2 Connection Tightening Torques. . . . . . . . . . . 77

A SET-UP FOR STANDBY PUMP ALTERNATION . 78

B ON-SITE DRIVE MOUNTING TO WALL OR PUMP 83

Taco® SKV

1 SAFETY REQUIREMENTS

CAUTION: These instructions should be

read completely prior to installation of the equipment. A copy of these instructions should be retained on file for future reference.

WARNING: Electrical shock hazard. Disconnect ALL power sources when installing or servicing this equipment to prevent electrical shock or equipment damage.

This pump is intended for the circulation of water or other suitable HVAC media. It is not intended for hazardous, corrosive, or flammable liquids.

Pump must not be operated until all piping and/or electrical connections are in place.

Proper care and suitable equipment should be used to move and install this heavy equipment.

Care should be taken when installing pipe systems to avoid placing an excessive load on the pump unions.

Refer to motor installation instructions to determine proper terminal connections in order to obtain correct pump rotation.

When the system piping is used as an earth bonding path for the building electrical services (check local codes), the pump should not be relied upon as part of the circuit. A properly installed bridging connection should be provided.

If electrical connection is to be made using any means other than rigid conduit, proper strain relief must be provided (min 100N tension).

Pump should be installed according to local electrical and safety codes using appropriate size wire and suitable over current protection. It should use a lockable isolator or circuit breaker conforming to applicable electrical codes.

It is recommended that the pump be fitted with a suitable “emergency stop” per the requirements of applicable electrical codes.

2 GENERAL INSTALLATION REQUIREMENTS

2.1 Receiving Pump

Inspect for shipping damage. If a shortage or damage occurs, contact carrier immediately.

2.2 Location

Install vertically with motor up. Consult factory for horizontal mounting.

Pump should be accessible for inspection and repair work, head room must be provided for the use of hoist or tackle as necessary.

Lift pump by slinging through motor eye bolts and securing through pump adapter.

NOTE: In no case should any part of motor be covered with insulation.

2.3 Foundation

The pump must always be supported.

Pumps with smaller motors may be suspended in the piping, provided the piping is supported adjacent to the pump.

For pumps with larger motors, the pump should be attached to a support utilizing the tapped hole or holes in the bottom of the pump casing.

NOTE: Piping loads shall not be applied to the pump.

Pump must be allowed to move with piping movement. Expansion of piping must be taken into account when piping and suitable devices should be employed.

NOTE: The pump should not be rigidly attached to the

mmmmbase/pad structure unless flexible couplings are used.

NOTE: Provide vibration isolation pads under floor mounted supports. Do not support unit by the motor eye-bolts.

3 MAINTENANCE

3.1 Routine Inspections

Routine inspections should be made on a regular basis. Inspections made while pump is running should reveal potential failures.

• Inspect motor bearings for any sign of temperature rise. Temperature should not exceed 160°F. Temperature rise may indicate the early stages of bearing problems.

• Listen for any unusual noise:

1.Air trapped in pump.

2.Hydraulic noise.

3.Mechanical noise in motor and/or pump.

• Check suction gauge reading and confirm that it is normal.

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Taco® SKV

• Check discharge gauge reading and confirm that it is normal. If gauge readings are abnormal find out why.

NOTE: Suction and discharge gauges should read the same with pump stopped.

3.2 Close Coupled Pumps

The pump section is attached directly to the motor shaft and does not contain bearings.

3.3 Close Coupled Motors

The motor must be lubricated in accordance with the manufacturer’s recommendations. Do not over lubricate the motor bearings as this could cause premature bearing failure.

3.4 Mechanical Seal

The mechanical seal is the “John Crane” Type 21 General Purpose Seal for the 175 psig pressure rating.

A “John Crane” Type 2 General Purpose Seal is used for the 300 psig pressure rating.

4 DIS-ASSEMBLY AND REASSEMBLY

4.1 General

If the pump has been maintained and serviced properly, breakdowns requiring pump disassembly should occur only rarely.

• If a problem occurs, the cause should be determined, if possible, before dis-assembling. (See “Problem Analysis”)

• If the pump is being dis-assembled, all parts must be carefully handled, avoid heavy blows and shocks.

• All parts must be carefully cleaned and inspected for wear. Recondition or replace parts where necessary.

4.2 Dis-Assembly

Drain liquid from casing by removing drain plug.

CAUTION: Allow pump to cool and secure suction and discharge valves before working on pump!

Remove re-circulation line.

Remove bolts holding cover/adapter to casing, pry cover/ adapter and motor assembly from casing.

Remove impeller bolt in a counterclockwise direction. Remove impeller and key.

In all cases of mechanical seal arrangement, after removing the sleeve and its seal assembly, the seal rotating element may be drawn off the shaft sleeve.

NOTE: Apply silicone grease on the OD of the sleeve in the area between the seal and the end of the sleeve. This will help removal of the old seal. The stationary element is to be removed from the cover.

All parts must be cleaned and inspected for wear. Replace parts where necessary.

4.3 Re-Assembly

Be certain that all parts to be replaced are free from burrs, with screw threads and connecting faces clear and free from damage.

Insert stationary element of seal into cover adapter, slip cover-adapter over shaft and engage rabbit of motor.

Note: Do not touch the seal surfaces because this may result in leakage. Do not contaminate seal faces with fingerprints.

Lubricate smaller OD of shaft sleeve with silicone grease. Do not use petroleum oil or grease.

Place spring on shaft sleeve to abut against sleeve shoulder. Slide rotary seal on sleeve until it contacts spring.

Slide the shaft sleeve on the shaft, larger bore first. Be certain the O-ring is correctly seated in the groove.

Assemble impeller key and impeller on shaft. Refit with new impeller washer on impeller bolt and tighten carefully. Be certain that the impeller rotates freely by hand.

Apply a few spots of gasket adhesive to gasket surface of cover. Place a new casing gasket against gasket surface and press against adhesive.

Assemble cover-adapter complete with motor into casing. Insure that gasket is seated correctly. Install hexheaded cap screws into casing tapings and tighten uniformly.

Reconnect re-circulation line and drain plug.

Taco® SKV

5 PUMP PIPING - GENERAL

CAUTION: NEVER connect any pump to

piping, unless extra care is taken to measure and align the piping flanges well. Always start piping from pump. Use as few bends as possible and preferably long radius elbows.

Do not use flexible connectors on the suction or discharge of a vertical in-line pump, unless the pump is rigidly mounted to a foundation. Ensure piping exerts no strain on pump as this could distort the casing causing breakage or early failure due to pump misalignment. All connecting pipe flanges must be square to the pipe work and parallel to the pump flanges.

Suction and discharge pipes may be increased or decreased at pump nozzle to suit pump capacity and particular conditions of installation. Use eccentric reducers on suction connection with flat side uppermost.

Lay out the suction line with a continual rise towards the pump without high points, thus eliminating possibility of air pockets that may prevent the pump from operating effectively.

Airflow into the motor and/or motor fan should not be obstructed.

7.2 VFD Mounting to Pump

For instructions on mounting the VFD directly to the pump, see the diagrams and notes on the following page.

6 APPLICATION

Working Pressure: 175 psig

Optional Working Pressure: 300 psig

Temperature: 250°F Standard

300°F Hi Temperature

7 MECHANICAL INSTALLATION

7.1 Location

In open systems, locate the unit as close as practical to the liquid supply source, with a short, direct suction pipe. Ensure adequate space is left above and around the unit for operation, maintenance, service and inspection of parts.

In closed systems, where possible, the pumps should be installed immediately downstream of the expansion tank/ make-up connection. This is the point of zero pressure change and is necessary for effective pump operation. Do not install more than one expansion tank connection into any closed hydronic system.

Electric motor driven pumps should not be located in damp or dusty location without special protection.

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Taco® SKV

Figure 7-1: VFD Mounting to Pump

1.Items specified on this drawing are specifically for the SKV or SKS product series.

2.Assemble safety strap onto isolation mount stud to produce orientation shown in the assembly drawing.

3.Apply 'Loctite' to isolation mount stud threads (1 place) on all 4x parts.

4.Assemble threaded stud with 'Loctite' into bar bracket until surfaces are in contact without gaps.

5.Use strap wrench for isolation mounts. Screw mount into bar bracket (#2) until the rubber face is flush against the bar. Torque the mount 1/4 of a full turn.

6.Support VFD & assemble onto 4 isolation mounts simultaneously, assemble lockwashers & nuts, torque to specifications "C", remove VFD support.

7.Assemble the motor so the feet are angled between 22.5° to 45° offset from the flanges, as shown below.

8.Assemble the motor so the VFD and motor conduit box are hanging over the outlet volute.

9.* = all "D" bolt connections are SAE J429 grade #2 steel - nickel plated.

TORQUE REQUIREMENTS

ALL TORQUE VALUES ARE +/- 15%

"A"

MOTOR POWER

SIZE

9310 11

"D"

DETAIL A

"C"

SCALE 1 : 4

"D"

"A"

APPLY LOCK TIGHT

BAR SIDE ONLY

ALTERNATIVE BRACKET VIEW

WIRES TO VFD

(In-lbs / Nm) A5 5 / 0.6 B1 16 / 1.8 M8 X 1.25 11.3 / 15.3 B2 40 / 4.5 M8 X 1.25 11.3 / 15.3 C1 89 / 10 M8 X 1.25 11.3 / 15.3 C2 124 / 14 M8 X 1.25 11.3 / 15.3

"B"

10 11

"B" VIBRATION MOUNT TO BAR BRACKET

(In-lbs / Nm)

SEE NOTE #7

ALL TORQUE VALUES ARE +/- 15%

MOTOR

SIZE

143-145 5/16 X 18 11.5 / 15.6 182-215 3/8 X 16 20 / 27 254-286 1/2 X 13 49 / 66 324-365 5/8 X 11 98 / 133 404-449 3/4 X 10 173 / 235

SKV or SKS BOM Assembly

ITEM # DESCRIPTION QTY

1 VFD 1

2 BAR BRACKET 2

3 WIRE HARNESS - MOTOR POWER 1

4 VIBRATION ISOLATION MOUNT 4

5 SAFETY STRAP 4

6 NUT (VFD) 4

7 LOCK WASHER (VFD) 4

8 WASHER (VFD) 4

9 SCREW (MOTOR) 4

10 LOCK WASHER (MOTOR) 4

11 WASHER (MOTOR) 4

N/A "LOCTITE" (242; P/N 24231) N/A

VIBRATION

MOUNT

THREAD

SIZE

M6 X 1 4.3 / 5.8

TORQUE REQUIREMENTS

BOLT SIZE

"C"

VFD NUT TO

VIBRATION MOUNT

(Ft-lbs / Nm)

"D" MOTOR BOLT TO BAR BRACKET (FT-LBS / NM)*

Taco® SKV

7.3 VFD Mounting to Wall

Figure 7-3: Proper Mounting with Railings

7.3.1 Lifting

• Check the weight of the unit to determine a safe lifting method.

• Ensure that the lifting device is suitable for the task.

• If necessary, plan for a hoist, crane, or forklift with the appropriate rating to move the unit.

• For lifting, use hoist rings on the unit, when provided.

7.3.2 Mounting

• Mount the unit vertically.

• The frequency converter allows side by side installation.

• Ensure that the strength of the mounting location will support the unit weight.

• Mount the unit to a solid flat surface or to the optional back plate to provide cooling airflow (see Figure 7-2 and Figure 7-3).

• Improper mounting can result in overheating and reduced performance.

• Use the slotted mounting holes on the unit for wall mounting, when provided.

Figure 7-2: Proper Mounting with Back Plate

Item A is a back plate properly installed for required airflow to cool the unit.

7.3.3 Tightening Torques

See “17.2 Connection Tightening Torques” on page 77 for proper tightening specifications.

7.4 Pump Piping – Detailed

In order to achieve the full added value of the Vertical InLine pump design, it is important that you ensure the pump is affixed to the system piping by the pump flanges and the pump and motor assembly is allowed to float freely with the expansion and contraction of the piping system. Should any vertical in-line pump use supports to the structure, it is imperative that no pipe strain is imposed on the pump flanges. Compliant mounts such as springs or “waffle”-style isolation pads should be used under the pipe supports if the pump is not truly pipe mounted.

Various installation arrangements are detailed in the figures that follow.

Figure 7-4: Hanger Supported, Pipe Mounted

NOTE: Back plate is required when mounted

on railings.

NOTE: The pump should not be rigidly attached to the base/pad structure unless flexible couplings are used.

302-365, Effective: June 5, 2017

Taco® SKV

Vertical In-Line pumps may be installed directly in the system piping with no additional support. Pipe hangers are simply sized for the additional weight of the pumping unit. Many pumps are installed in this manner and are mounted at sufficient height to take zero floor space.

A similar arrangement to Figure 7-5 with additional floor mounted pipe-stools isolated from the structure by 'waffle' style isolation pads under the Suction Diffuser (RSP) and Plus Two Multi-Purpose Valve is illustrated in (Figure 7-7).

(Figure 7-4)

Piping for smaller in-line pumps (typically 15 hp and below) is hung close to the ceiling in many mechanical rooms. Larger pumps are often mounted near ground level for ease of maintenance. Figure 7-5 illustrates such an arrangement with the piping supported at the ceiling and the vertical pump installed with a Taco Suction Diffuser (RSP) and Plus Two Multi-Purpose Valve.

Figure 7-5: Pipe Mounted, Supported at Ceiling

Floor mounted saddle supports (Figure 7-8) are typical for condenser water pumps where cooling tower base is near mechanical room elevation.

Figure 7-7: With Additional Pipe Supports

Figure 7-8: Floor Saddle Support

Should additional space saving be required, the discharge spool piece and Plus Two Multi-Purpose Valve may be replaced by a long-radius elbow and the Plus Two Multi-Purpose Valve field converted to a straight pattern configuration and installed in the vertical discharge pipe (Figure 7-6).

Figure 7-6: Discharge Elbow for Minimum

Footprint

Where required, additional floor support may be used as shown in Figure 7-9. Install a “waffle” isolation pad under the pump. NOTE: The pump should not be rigidly attached to the base/pad structure.

Figure 7-9: Additional Floor Support

Stanchion plates at the pump suction and discharge ports may be supplied for installation convenience. Isolation

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Taco® SKV

pads must be used under the legs and monitored as pipe hangers are adjusted to ensure the pump flanges are not supporting the piping. Bolting to the floor or housekeeping pad is not recommended. If the stanchions are bolted down the bolts must be isolated from the stanchion or inertia base and flexible pipe connectors used (Figure 7-

10).

Figure 7-10: With Stanchion Plates

An installation with stanchion plates for seismically active regions is illustrated in Figure 7-11. Seismically rated isolation pads or snubbers with bolts isolated from the stanchion plates are installed to restrain the pump during a seismic event. Pipe hangers carry the weight of the equipment as seismic components are designed only to restrain the equipment during a seismic event.

Figure 7-11: Installation in Seismically Active

Region

Figure 7-12: Mounting in Grooved Pipe Systems

DO NOT support the unit by the motor eye bolts (Figure 7-13) or by any other part of the motor.

Figure 7-13: Motor Lifting Hook Supported

Connecting the pump to a permanent rigid base (Figure 7-14) is not recommended unless isolated from the piping by flexible connectors and the base isolated from the building structure on an inertia base. (Figure 714 is generally acceptable when using plastic piping.)

Figure 7-14: Mounted on Rigid Base without

Flexible Connectors

In systems utilizing grooved pipe, flange adapter locking devices or welded flanges at the pump should be used to prevent the possibility of pipe mounted pumps rotating in the piping (Figure 7-12).

NOTE: The pump should not be rigidly attached to the base/pad structure unless flexible couplings are used.

302-365, Effective: June 5, 2017

8 ELECTRICAL CONNECTIONS

8.1 Exploded Views

Figure 8-1: Exploded View A Size

Taco® SKV

1 LCP 10 Motor output terminals 96 (U), 97 (V), 98 (W) 2 RS-485 serial bus connector (+68, -69) 11 Relay 1 (01, 02, 03) 3 Analog I/O connector 12 Relay 2 (04, 05, 06) 4 LCP input plug 13 Brake (-81, +82) and load sharing (-88, +89) terminals 5 Analog switches (A53), (A54) 14 Line power input terminals 91 (L1), 92 (L2), 93 (L3) 6 Cable strain relief / PE ground 15 USB connector 7 Decoupling plate 16 Serial bus terminal switch 8 Grounding clamp (PE) 17 Digital I/O and 24 V power supply 9 Shielded cable grounding clamp and strain relief 18 Control cable coverplate

Taco® SKV

Figure 8-2: Exploded View B and C Sizes

1 LCP 11 Relay 2 (04, 05, 06) 2 Cover 12 Lifting ring 3 RS-485 serial bus connector 13 Mounting slot 4 Digital I/O and 24 V power supply 14 Grounding clamp (PE) 5 Analog I/O connector 15 Cable strain relief / PE ground 6 Cable strain relief / PE ground 16 Brake terminal (-81, +82) 7 USB connector 17 Load sharing terminal (DC bus) (-88, +89) 8 Serial bus terminal switch 18 Motor output terminals 96 (U), 97 (V), 98 (W) 9 Analog switches (A53), (A54) 19 Line power input terminals 91 (L1), 92 (L2), 93 (L3) 10 Relay 1 (01, 02, 03)

8.2 Electrical Installation

This section contains detailed instructions for wiring the adjustable frequency drive. The following tasks are described.

• Wiring the motor to the adjustable frequency drive output terminals

• Wiring the AC line power to the adjustable frequency drive input terminals

• Connecting control and serial communication wiring

• After power has been applied, checking input and motor power; programming control terminals for their intended functions

302-365, Effective: June 5, 2017

Figure 8-3 shows a basic electrical connection.

Figure 8-3: Basic Wiring Schematic Drawing

Taco® SKV

DANGER: EQUIPMENT HAZARD! Rotating shafts and electrical equipment can be hazardous. All electrical work must conform to national and local electrical codes. It is strongly recommended that installation, start-up, and maintenance be performed only by trained and qualified personnel. Failure to follow these guidelines could result in death or serious injury.

CAUTION: WIRING ISOLATION! Run input power, motor wiring and control wiring in three separate metallic conduits or use separated shielded cable for high frequency noise isolation. Failure to isolate power, motor and control wiring could result in less than optimum adjustable frequency drive and associated equipment performance.

Taco® SKV

For your safety, comply with the following requirements:

• Electronic controls equipment is connected to hazardous AC line voltage. Extreme care should be taken to protect against electrical hazards when applying power to the unit.

• Run motor cables from multiple adjustable frequency drives separately. Induced voltage from output motor cables run together can charge equipment capacitors even with the equipment turned off and locked out.

8.2.1 Overload and Equipment Protection

• An electronically activated function within the adjustable frequency drive provides overload protection for the motor. The overload calculates the level of increase to activate timing for the trip (controller output stop) function. The higher the current draw, the quicker the trip response. The overload provides Class 20 motor protection. See “14 Warnings and Alarms” on page 61 for details on the trip function.

• Because the motor wiring carries high frequency current, it is important that wiring for line power, motor power, and control is run separately. Use metallic conduit or separated shielded wire. Failure to isolate power, motor, and control wiring could result in less than optimum equipment performance. See Figure 8-

Figure 8-4: Proper Electrical Installation Using

Flexible Conduit

All adjustable frequency drives must be provided with short-circuit and overcurrent protection. Input fusing is required to provide this protection, see Figure 9.2.3. If not factory supplied, fuses must be provided by the installer as part of installation.

Figure 8-5: Adjustable Frequency Drive Fuses

Wire Type and Ratings

• All wiring must comply with local and national regulations regarding cross-section and ambient temperature requirements.

• Danfoss recommends that all power connections be made with a minimum 167°F [75 °C] rated copper wire.

8.3 Grounding Requirements

DANGER: GROUNDING HAZARD! For

operator safety, it is important to ground adjustable frequency drive properly in accordance with national and local electrical codes as well as instructions contained within these instructions. Ground currents are higher than 3.5 mA. Failure to ground the adjustable frequency drive properly could result in death or serious injury.

NOTE: It is the responsibility of the user or certified electrical installer to ensure correct grounding of the equipment in accordance with national and local electrical codes and standards.

• Follow all local and national electrical codes to ground electrical equipment properly.

• Proper protective grounding for equipment with ground currents higher than 3.5 mA must be established, see Leakage Current (>3.5 mA).

• A dedicated ground wire is required for input power, motor power and control wiring.

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Taco® SKV

• Use the clamps provided with on the equipment for proper ground connections.

• Do not ground one adjustable frequency drive to another in a “daisy chain” fashion.

• Keep the ground wire connections as short as possible.

• Use of high-strand wire to reduce electrical noise is recommended.

• Follow the motor manufacturer wiring requirements.

8.3.1 Leakage Current (>3.5 mA)

Follow national and local codes regarding protective grounding of equipment with a leakage current > 3.5 mA. Adjustable frequency drive technology implies high frequency switching at high power. This will generate a leakage current in the ground connection. A fault current in the adjustable frequency drive at the output power terminals might contain a DC component which can charge the filter capacitors and cause a transient ground current. The ground leakage current depends on various system con"gurations including RFI filtering, shielded motor cables, and adjustable frequency drive power.

EN/IEC61800-5-1 (Power Drive System Product Standard)

requires special care if the leakage current exceeds

3.5mA.

Grounding must be reinforced in one of the following ways:

• Ground wire of at least 0.0155 in2 [10mm2]

• Two separate ground wires both complying with the dimensioning rules

See EN/IEC61800-5-1 and EN50178 for further information.

8.3.3 Grounding Using Shielded Cable

Grounding clamps are provided for motor wiring (see Figure 8-6).

Figure 8-6:

Grounding with Shielded Cable

8.3.4 Grounding Using Conduit

DANGER: GROUNDING HAZARD! Do not

use conduit connected to the adjustable frequency drive as a replacement for proper grounding. Ground currents are higher than

3.5 mA. Improper grounding can result in personal injury or electrical shorts.

Dedicated grounding clamps are provided (See Figure 8-

7).

Figure 8-7: Grounding with Conduit

8.3.2 Using RCDs

Where residual current devices (RCDs), also known as ground leakage circuit breakers (ELCBs), are used, comply with the following:

• Use RCDs of type B only which are capable of detecting AC and DC currents

• Use RCDs with an inrush delay to prevent faults due to transient ground currents

• Dimension RCDs according to the system configuration and environmental considerations

1.Use a wire stripper to remove the insulation for proper grounding.

2.Secure the grounding clamp to the stripped portion of the wire with the screws provided.

3.Secure the grounding wire to the grounding clamp provided.

Taco® SKV

8.3.5 Motor Connection

DANGER: INDUCED VOLTAGE! Run out-

put motor cables from multiple adjustable frequency drives separately. Induced voltage from output motor cables run together can charge equipment capacitors even with the equipment turned off and locked out. Failure to run output motor cables separately could result in death or serious injury.

• For maximum wire sizes, see “17.1 Power-dependent Specifications” on page 75.

• Comply with local and national electrical codes for cable sizes.

• Motor wiring knockouts or access panels are provided at the base of IP21 and higher (NEMA1/12) units

• Do not install power factor correction capacitors between the adjustable frequency drive and the motor

• Do not wire a starting or pole-changing device between the adjustable frequency drive and the motor.

• Connect the 3-phase motor wiring to terminals 96 (U), 97 (V), and 98 (W).

• Ground the cable in accordance with grounding instructions provided.

• Follow the motor manufacturer wiring requirements

The three following figures represent line power input, motor, and grounding for basic adjustable frequency drives. Actual configurations vary with unit types and optional equipment.

Figure 8-8: Motor, Line Power and Ground Wiring

for A-Frame Sizes

Figure 8-9: Motor, Line Power and Ground Wiring

for B-Frame Sizes and Above Using Shielded Cable

Figure 8-10: Motor, Line Power and Ground

Wiring B-Frame Sizes and Above Using Shielded Cable or Conduit

8.3.6 AC Line Power Connection

Size wiring based upon the input current of the adjustable frequency drive.

• Comply with local and national electrical codes for cable sizes.

• Connect 3-phase AC input power wiring to terminals L1, L2, and L3 (see Figure 8-11).

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• Depending on the configuration of the equipment, input power will be connected to the line power input terminals or the input disconnect.

Figure 8-11: Connecting to AC Line Power

• Ground the cable in accordance with grounding instructions provided in “8.3 Grounding Requirements” on page 12.

• All adjustable frequency drives may be used with an isolated input source as well as with ground reference power lines. When supplied from an isolated line power source (IT line power or floating delta) or TT/TN-S line power with a grounded leg (grounded delta), set 14-50 RFI 1 to OFF. When off, the internal RFI filter capacitors between the chassis and the intermediate circuit are isolated to avoid damage to the intermediate circuit and to reduce ground capacity currents in accordance with IEC 61800-3.

Figure 8-12: Control Wiring Access for A2, A3,

B3, B4, C3 and C4 Enclosures

Figure 8-13: Control Wiring Access for A4, A5,

B1, B2, C1 and C2 Enclosures

8.3.7 Control Wiring

Isolate control wiring from high power components in the adjustable frequency drive.

If the adjustable frequency drive is connected to a thermistor, for PELV isolation, optional thermistor control wiring must be reinforced/ double insulated. A 24 VDC supply voltage is recommended.

Access

Remove access coverplate with a screwdriver. See “Figure 8-12: Control Wiring Access for A2, A3, B3, B4, C3 and C4 Enclosures” on page 15.

Or remove front cover by loosening attaching screws. See “Figure 8-13: Control Wiring Access for A4, A5, B1, B2, C1 and C2 Enclosures” on page 15.

Please see the table below before tightening the covers.

Table 1: Tightening Torques for Covers (Nm)

Frame IP20 IP21 IP55 IP66

A4/A5 - - 2 2 B1 - * 2.2 2.2 B2 - * 2.2 2.2 C1 - * 2.2 2.2 C2 - * 2.2 2.2 * No screws to tighten

- Does not exist

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Control Terminal Types

Figure 8-14 shows the removable adjustable frequency drive connectors.

Figure 8-14: Control Terminal Locations

Figure 8-15: Unplugging Control Terminals

1.Open the contact by inserting a small screwdriver into the slot above or below the contact, as shown in Figure 8-16.

2.Insert the bared control wire into the contact.

3.Remove the screwdriver to fasten the control wire into the contact.

4.Ensure the contact is firmly established and not loose. Loose control wiring can be the source of equipment faults or less than optimal operation.

Figure 8-16: Connecting Control Wiring

• Connector 1 provides four programmable digital inputs terminals, two additional digital terminals programmable as either input or output, a 24V DC terminal supply voltage, and a common for optional customer supplied 24V DC voltage.

• Connector 2 terminals (+)68 and (-)69 are for an RS485 serial communications connection.

• Connector 3 provides two analog inputs, one analog output, 10V DC supply voltage, and commons for the inputs and output.

• Connector 4 is a USB port available for use with the MCT-10 Set-up Software.

• Also provided are two Form C relay outputs that are in various locations depending upon the adjustable frequency drive configuration and size.

Wiring to Control Terminals

Control terminal connectors can be unplugged from the adjustable frequency drive for ease of installation, as shown in Figure 8-15.

Using Shielded Control Cables

Correct Shielding

The preferred method in most cases is to secure control and serial communication cables with shielding clamps provided at both ends to ensure best possible high frequency cable contact.

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50/60 Hz ground loops

With very long control cables, ground loops may occur. To eliminate ground loops, connect one end of the shieldtoground with a 100 nF capacitor (keeping leads short).

Avoid EMC noise on serial communication

To eliminate low-frequency noise between adjustable frequency drives, connect one end of the shield to terminal

61. This terminal is connected to ground via an internal RC link. Use twisted-pair cables to reduce interference between conductors.

Control Terminal Functions

Adjustable frequency drive functions are commanded by receiving control input signals.

• Each terminal must be programmed for the function it will be supporting in the parameters associated with that terminal.

• It is important to confirm that the control terminal is programmed for the correct function. See “9 User Interface” on page 28for details on accessing parameters..

• The default terminal programming is intended to initiate adjustable frequency drive functioning in a typical operational mode.

Jumper Terminals 12 and 27

A jumper wire may be required between terminal 12 (or

13) and terminal 27 for the adjustable frequency drive to operate when using factory default programming values.

• Digital input terminal 27 is designed to receive an 24VDC external interlock command. In many applications, the user wires an external interlock device to terminal 27.

• When no interlock device is used, wire a jumper between control terminal 12 (recommended) or 13 to terminal 27. This provides an internal 24 V signal on terminal 27.

• No signal present prevents the unit from operating.

• When the status line at the bottom of the LCP reads “AUTO REMOTE COASTING” or “Alarm 60 External Interlock” is displayed, this indicates that the unit is ready to operate but is missing an input signal on terminal 27.

• When factory installed optional equipment is wired to terminal 27, do not remove that wiring.

Terminal 53 and 54 Switches

• Analog input terminals 53 and 54 can select either voltage (0 to 10V) or current (0/4–20mA) input signals

• Remove power to the adjustable frequency drive before changing switch positions.

• Set switches A53 and A54 to select the signal type. U selects voltage, I selects current.

• The switches are accessible when the LCP has been removed (see Figure 8-17). Note that some option cards available for the unit may cover these switches and must be removed to change switch settings. Always remove power to the unit before removing option cards.

• Terminal 53 default is for a speed reference signal in open-loop set in 16-61 Terminal 53 Switch Setting

• Terminal 54 default is for a feedback signal in closedloop set in 16-63 Terminal 54 Switch Setting

Figure 8-17: Location of Terminals 53 and 54

Switches

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8.4 Typical Terminal Wiring Configurations

The unit connection blocks are shown in “Figure 8-14: Control Terminal Locations” on page 16.

Table 2: Control Terminal Information

Terminal

number

Relay Outputs 01, 02, 03 5-40 Relay 1 [160] No Alarm Form C Relay Output. Used for AC or DC voltages and either

04, 05, 06 5-40 Relay 2 [5] Running

Connector 1 12, 13 - +24 V DC 24 V DC supply voltage. Maximum output current is 200 mA

18 5-10 [8] Start Start/Stop digital input signal for the drive. Connect input to 24

19 5-11 [0] No Operation Digital input (not used) 27 5-12 [0] No Operation Digital input (not used) 29 5-13 [0] No Operation Digital input (not used) 32 5-14 [0] No Operation Digital input (not used) 33 5-15 [0] No Operation Digital input (not used) 20 - Common Common for digital inputs and reference for 24 V supply

Connector 2 61 - Shield Connection Integrated RC filter for cable shield. ONLY for connecting the

68 8-3 + RS485 Interface (+) 69 8-3 - RS485 Interface (-)

Connector 3 39 - AO Common Common for analog output

42 6-50 4-20mA Motor

50 - +10 V DC 10 V DC analog supply voltage. 15mA max. 53 6-1 [0] No Operation Analog input 53. 54 6-2 [0] No Operation Analog input 54. 55 - AI Common Common for analog input.

Parameter Default setting Description

resistive or inductive loads. see the following section on relay wiring for contact current and voltage ratings.

total for all 24 V loads. Intended for digital inputs, external transducers.

V to start. Open the input to stop the drive.

shield when experiencing EMC problems.

Analog output. Default setting is 4-20mA signal (500 ohms

Freq

maximum) based on motor speed.

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Figure 8-18: Control Terminal Connectors 1-4 and Relay Output Locations

Drive 1 Relay. Relay 1 is on the right in this view.

Relay 2.

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8.4.1 Factory default set-up

This configuration makes use of the controller factory default settings for input/output. The factory default settings are configured for Set-up 1, SelfSensing system curve control without an external transducer. No parameters need to be changed to use this configuration. Set-up 3, SelfSensing constant flow control, uses the same default settings.

Set-ups can be changed by modifying the parameter 0-10 Active Set-up.

NOTE: The factory default settings require a start signal wired to DI18 (see below).

Comm Port I/O Analog I/O Digital

SHLD

-39COM42AOUT50+10V53A IN

A IN

COM

+24V13+24V18D IN19D IN27D IN29D IN32D IN33D IN20COM

Starting/Stopping

Controller

[5-10] [8] Start* Start: Closed * factory default

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8.4.2 Relay Outputs

As shown above, each unit has two form C programmable relay outputs. The relay terminals can be found on the controller in various locations according to the frame size.

Figure 8-19: Wiring the Relay Terminals

Relay 1

02NO03

COM

Unit Receiving

Output from

Relay 1

[5-40.0] [160] No Alarm* No Alarm: Comm=NO Alarm: Comm = NC

Relay 2

05NO06

COM

Unit Receiving

Output from

Relay 2

[5-40.1] [5] Running* Running: Comm=NO Off: Comm = NC

* Factory Default Settings

Table 3: Relay Terminal Specifications

Programmable relay outputs 2 Relay 01 Terminal number 1–3 (break), 1–2 (make) Maximum terminal load (AC-1) on 1–3 (NC), 1–2 (NO) (Resistive load) 240 V AC, 2A Maximum terminal load (AC-15) (Inductive load @ cos 0.4) 240 V AC, 0.2A Maximum terminal load (DC-1) on 1–2 (NO), 1–3 (NC) (Resistive load) 60 V DC, 1A Maximum terminal load (DC-13) (Inductive load) 24 V DC, 0.1A Relay 02 Terminal number 4–6 (break), 4–5 (make) Maximum terminal load (AC-2) on 4–5 (NO) (resistive load) 400 V AC, 2A Maximum terminal load (AC-15) (Inductive load @ cos 0.4) 240 V AC, 0.2A Maximum terminal load (DC-1) on 4–5 (NO) (Resistive load) 80 V DC, 2A Maximum terminal load (DC-13) on 4–5 (NO) (Inductive load) 24 V DC, 0.1A Maximum terminal load (AC-1) on 4–6 (NC) (Resistive load) 240 V AC, 2A Maximum terminal load (AC-15) on 4–6 (NC) (Inductive load @ cos 0.4) 240 V AC, 0.2A Maximum terminal load (DC-1) on 4–6 (NC) (Resistive load) 50 V DC, 2A Maximum terminal load (DC-13) on 4–6 (NC) (Inductive load) 24 V DC, 0.1A Minimum terminal load on 1–3 (NC), 1–2 (NO), 4–6 (NC), 4–5 (NO) 24 V DC 10mA, 24 V AC 20mA Environment according to EN 60664–1 overvoltage category III/pollution degree 2

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8.4.3 Adding Transducer Input

This configuration adds a transducer for closed loop control or external monitoring. Use Set-up 4 for pressure control (Delta P) using a wired pressure transducer.

NOTE: Analog input configuration switches must be set before using the analog input, as shown in Figure 8-21.

Figure 8-20: Terminal Wiring for 4–20mA Sensor Sensor

I/O Analog I/O Digital

COM42AOUT50+10V53A IN

COM

Unit Receiving

Analog Output

A IN

4-20 mA

Transducer

COM

+24V

+24V13+24V18D IN19D IN27D IN29D IN32D IN33D IN20COM

Starting/Stopping

Controller

(Optional)

[6-50] [137] Speed* 4-20 mA * factory default

[Group 6-] [Group20-] (See Table) Set A54=I

[5-10] [8] Start* Start: Closed * factory default

Figure 8-21: Location of Terminals 53 and 54 Switches

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The following wiring scheme is used with Set-up 4 as shown in “10.1 SelfSensing Description” on page 34.

Figure 8-22: Terminal Wiring for 0–10V Sensor

I/O Analog I/O Digital

Taco® SKV

COM42AOUT50+10V53A IN

COM

Unit Receiving

Analog Output

A IN

0-10V

Transducer

COM

+24V

+24V13+24V18D IN19D IN27D IN29D IN32D IN33D IN20COM

Starting/Stopping

Controller

(Optional)

[6-50] [137] Speed* 4-20 mA * factory default

[Group 6-] [Group20-] (See Table) Set A54=U

[5-10] [8] Start* Start: Closed * factory default

To configure the controller for closed loop control based on the input from an external transducer, use the following parameters:

Table 4: Settings for a Wired Sensor for Input

Parameter

number

0–10 Active Set-up For wired pressure transducer, choose Set-up 4. 6-24* Terminal 54 Low Ref./Feedb.

Value

6-25* Terminal 54 High Ref./Feedb.

Value 6-27* Terminal 54 Live Zero Enabled 20-00 Feedback 1 Source Analog Input 54* 20-12 Reference/Feedback Set as appropriate for application. For example, set to PSI when using a pressure

20–13 Minimum Reference/Feed-

back 20–14 Maximum Reference/Feed-

back

Description Set to

Minimum transducer input value. For example, for a 0–100 PSI transducer, set to

0. For live 0 function set feedback to 1V or 10 PSI. Note: Live 0 does not work if minimum is set to 0.

Maximum transducer input value. For example, for a 0–100 PSI transducer, set to

100.

transducer. The default value for this setting is PSI. Minimum transducer input value. For example, for a 0–100 PSI transducer, set to

0 PSI. Maximum transducer input value. For example, for a 100 PSI transducer, set to

100 PSI.

* To use AI 53, set parameters 6–14, 6–15, 6–17 and set 20–00 to “Analog Input 53.”

To set up the controller with a transducer that is intended for external monitoring, as opposed to feedback to the controller, set the following parameters:

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Table 5: Settings for a Wired Sensor for External Monitoring

Parameter

number

Description Set to

0-24 Display Line 3 Large Ext. 1 Feedback [Unit] 21-14 Ext. 1 Feedback Source Analog Input 54* 21–10 Ext. 1 Ref./Feedback Unit Select as appropriate for application. For example, set to PSI when using a

pressure transducer.

21–11 Ext. 1 Minimum Reference Minimum transducer input value. For example, for a 0–60 PSI transducer,

set to 0 PSI.

21–12 Ext. 1 Maximum Reference Maximum transducer input value. For example, for a 60 PSI transducer,

set to 60 PSI.

6–24* Terminal 54 Low Ref./Feedb. Value Minimum transducer input value. For example, for a 0–60 PSI transducer,

set to 0 PSI.

6–25* Terminal 54 High Ref./Feedb. Value Maximum transducer input value. For example, for a 60 PSI transducer,

set to 60 PSI.

6–27* Terminal 54 Live Zero Disabled

* To use AI 53, set parameters 6–14, 6–15, 6–17 and set 20-00 to “Analog Input 53.”

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8.4.4 Speed control with external potentiometer

This configuration allows an external potentiometer to control the speed of the motor.To use this set-up, the analog input must be configured as a voltage input.

The following wiring scheme is used with Set-up 2 as shown in “10.1 SelfSensing Description” on page 34.

Figure 8-23: Terminal Wiring for Potentiometer used as External Speed Reference

I/O Analog I/O Digital

COM42AOUT50+10V53A IN

COM

Unit Receiving

Analog Output

(Optional)

[6-50] [137] Speed* 4-20 mA * factory default

A IN

+10V

Speed Control Potentiometer

[1-00] [0] Open Loop [3-15] [1] AI54 Group 6-

AI53

COM

+24V13+24V18D IN19D IN27D IN29D IN32D IN33D IN20COM

COM

Starting/Stopping

Controller

[5-10] [8] Start* Start: Closed * factory default

Group 20(See Table) Set A54=U

To set up the controller for speed control with an external potentiometer, set the following parameters:

Parameter

number

1-00 Configuration Mode Open Loop 3-15 Reference 1 Source Analog Input 54 6-20 Terminal 54 Low Voltage* 0 V 6-21 Terminal 54 High Voltage* 10 V 6-24 Terminal 54 Low Ref./Feedb. Value 0 6-25 Terminal 54 High Ref./Feedb. Value Maximum motor speed. For example, 2950 Hz. 6-27 Terminal 54 Live Zero Disabled. 20-00 Feedback 1 Source No Function

Description Set to

* Set switch A54 = U

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8.4.5 Control from external PLC/BMS through Analog Input

This set-up allows an external control source such as a PLC or BMS controller to provide: a) the process variable, b) the setpoint or c) a speed reference. The output from the external control device can be either a voltage or current signal. The analog input configuration switches must be set to the correct type of output signal. The drawing below shows the connections for this configuration.

This wiring scheme is used with Set-up 2, as shown in “10.1 SelfSensing Description” on page 34.

Figure 8-24: Terminal Wiring for External Control Source

I/O Analog I/O Digital

COM42AOUT50+10V53A IN

COM

Unit Receiving Analog Output

[6-50] [137] Speed* 4-20 mA * factory default

A IN

PLC or BMS Control Signal

[Group 6-] [Group20-] (See Table)

Set A54=U for 0-10V Set A54=I for 4-20mA

COM

+24V13+24V18D IN19D IN27D IN29D IN32D IN33D IN20COM

COM

Starting/Stopping

Controller

[5-10] [8] Start* Start: Closed * factory default

Table 6: Parameter Configuration for Use of an External Control Signal

Parameter

Number

1-00 Configuration Mode Closed Loop Closed Loop Open Loop 3-15 Reference 1 Source No Function Analog Input 54* Analog Input 54* 6-24 Terminal 54 Low Ref./

6-25 Terminal 54 High

6-27 Terminal 54 Live Zero Enabled Enabled Disabled 20-00 Feedback 1 Source Analog Input 54 Select as appropriate for applica-

20-12 Reference/Feedback

20-14 Maximum Reference/

Parameter

Description

Feedb. Value

Ref./Feedb. Value

Unit

Feedback

For process variable from

BMS/PLC*

Minimum value of process variable. For example, for a 0-60PSI transducer, set to 0.

Maximum value of process variable. For example, for a 60PSI transducer, set to 60.

Select as appropriate for application. For example, set to PSI when using pressure feedback.

Maximum transducer feedback value. For example, for a 60PSI transducer, set to 60 PSI.

For setpoint from BMS/ PLC**

Minimum reference/setpoint value. For example, for a 060PSI DP transducer, set to 0.

Maximum reference/setpoint value. For example, for a 60PSI DP transducer, set to 60.

tion. This can be any selection except the setting of parameter 3-15.

Select as appropriate for application. For example, set to PSI when using pressure reference.

Maximum reference/setpoint value. For example, for a 60PSI transducer, set to 60 PSI.

For speed reference

from BMS/PLC***

Minimum motor speed. For example, 0 RPM.

Maximum motor speed. For example, 2950 RPM.

No Function

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* To use AI 53, configure parameters 6-14, 6-15, 6-17 and set 20-00 to Analog Input 53

8.4.6 Control From External PLC/BMS Using Communications Port

The controller can be controlled from a BMS or PLC through the communications port. In this configuration, the BMS or PLC overrides the setpoint to control the drive. Control cables must be braided screened/shielded and the screen must be connected to the metal cabinet of the controller using two cable clamps (one at each end). The bus connections must be terminated by turning the BUS TER switch to the on position. This switch can be found under the LCP, when the LCP is detached.

This wiring scheme is used with Set-up 2, as shown in “10.1 SelfSensing Description” on page 34.

Figure 8-25: Terminal Connections for External Control via Communications Port

Comm Port

SHLD

RS485

Controller

[8-**] Config params

Table 7: Parameter settings for Modbus RTU and BACnet protocols

Parameter Number Parameter Description Protocol

Modbus RTU BACnet

8-02 Control Source FC Port FC Port 8-30 Protocol Modbus RTU BACnet 8-31 Address 1 1 8-32 Baud Rate 19200 9600 8-33 Parity/Stop bit Even Parity, 1 Stop bit No Parity, 1 Stop bit 8-34 Estimated cycle time 0 ms 0 ms 8-35 Minimum Response Delay 10 ms 10 ms 8-36 Maximum Response Delay 5000 ms 5000 ms 8-37 Maximum Inter-Char Delay 0.86 ms 25 ms

The parameters above show a typical scenario used for Modbus RTU or BACnet protocols. The parameters must be set as appropriate for the devices on the network. 8-32 Baud Rate and 8-33 Parity/Stop Bit should be set to match the other devices on the network. For specific communication set-up information for Modbus RTU, refer to the document number MG92B102. For specific communication set-up information for BACnet, see documents MG14C102 and MG11D202. These documents can be downloaded from www.danfoss.com.

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9 USER INTERFACE

9.1 Local Control Panel

The local control panel (LCP) is the combined display and keypad on the front of the unit. The LCP is the user interface to the adjustable frequency drive.

The LCP has several user functions.

• Start, stop, and control speed when in local control

• Display operational data, status, warnings and cautions

• Programming adjustable frequency drive functions

• Manually reset the adjustable frequency drive after a fault when auto-reset is inactive

LCP Layout

The LCP is divided into four functional groups (see Figure 9-1).

Figure 9-1: LCP

b.Display menu keys for changing the display to

show status options, programming, or error message history.

c. Navigation keys for programming functions, mov-

ing the display cursor, and speed control in local operation. Also included are the status indicators.

d.Operational mode keys and reset.

Setting LCP Display Values

The display area is activated when the adjustable frequency drive receives power from AC line voltage, a DC bus terminal, or an external 24V supply.

The information displayed on the LCP can be customized for user application.

• Each display readout has a parameter associated with it.

• Options are selected in the quick menu Q3-13 Dis-

play Settings

• Display 2 has an alternate larger display option.

• The adjustable frequency drive status at the bottom line of the display is generated automatically and is not selectable.

Display

1.1 0-20 Head

1.2 0-21 Motor Horsepower

1.3 0-22 Motor Hz 2 0-23 GPM

Figure 9-2: Status Display

1.1

1.2

Display Menu Keys

Menu keys are used for menu access for parameter setup, toggling through status display modes during normal operation, and viewing fault log data.

Parameter

number

Default setting

1.3

a.Display area

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Key Function

Status Press to show operational information.

• In Auto mode, press and hold to toggle between status readout displays.

• Press repeatedly to scroll through each status display.

• Press and hold [Status] plus [ ] or [ ] to adjust the display brightness.

• The symbol in the upper right corner of the display shows the direction of motor rotation and which set-up is active. This is not programmable.

Quick Menu

Main Menu Allows access to all programming parameters.

Alarm Log Displays a list of current warnings, the last 10

Allows access to programming parameters for initial set-up instructions and many detailed application instructions.

• Press to access Q2 Quick Set-up for sequenced instructions to program the basic adjustable frequency drive set-up.

• Press to access Q3 Function Set-ups for sequenced instructions to program applications

• Follow the sequence of parameters as presented for the function set-up.

• Press twice to access top level index.

• Press once to return to the last location accessed.

• Press and hold to enter a parameter number for direct access to that parameter.

alarms, and the maintenance log.

• For details about the adjustable frequency drive before it entered the alarm mode, select the alarm number using the navigation keys and press [OK].

Navigation Keys

Navigation keys are used for programming functions and moving the display cursor. The navigation keys also provide speed control in local (hand) operation. Three adjustable frequency drive status indicators are also located in this area.

Taco® SKV

Figure 9-3: Navigation Keys

Key Function

Back Reverts to the previous step or list in the menu

structure.

Cancel Cancels the last change or command as long as

the display mode has not changed.

Info Press for a de!nition of the function being dis-

played.

Navigation Keys

OK Use to access parameter groups or to enable a

Light Indicator Function

Green ON The ON light activates when the

Yellow WARN When warning conditions are met, the

Red ALARM A fault condition causes the red alarm

Use the four navigation arrows to move between items in the menu.

choice.

adjustable frequency drive receives power from AC line voltage, a DC bus terminal, or an external 24 V supply.

yellow WARN light comes on and text appears in the display area identifying the problem.

light to flash and an alarm text is displayed.

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Operation Keys

Operation keys are found at the bottom of the control panel.

Figure 9-4: Operation Keys

Key Function

Hand On Press to start the adjustable frequency drive in

local control.

• Use the navigation keys to control adjustable frequency drive speed.

• An external stop signal by control input or serial communication overrides the local hand on.

Off Stops the motor but does not remove power to

the adjustable frequency drive.

Auto On Puts the system in remote operational mode.

• Responds to an external start command bycontrol terminals or serial communication

• Speed reference is from an external source

Reset Resets the adjustable frequency drive manually

after a fault has been cleared.

9.2 Backup and Copying Parameter Settings

Programming data is stored internally in the adjustable frequency drive.

• The data can be uploaded into the LCP memory as a storage backup.

• Once stored in the LCP, the data can be downloaded back into the adjustable frequency drive.

• Initialization of the adjustable frequency drive to restore factory default settings does not change data stored in the LCP memory.

DANGER: UNINTENDED START! When adjustable frequency drive is connected to AC line power, the motor may start at any time. The adjustable frequency drive, motor, and any driven equipment must be in operational readiness. Failure to be in operational readiness when the adjustable frequency drive is connected to AC line power could result in death, serious injury, equipment, or property damage.

7.Apply power to the unit. Default parameter settings

are restored during start-up. This may take slightly

Uploading Data to the LCP

1.Press [OFF] to stop the motor before uploading or downloading data.

2.Go to 0-50 LCP Copy.

3.Press [OK].

4.Select All to LCP.

5.Press [OK]. A progress bar shows the uploading process.

6.Press [Hand On] or [Auto On] to return to normal operation.

Downloading Data from the LCP

1.Press [OFF] to stop the motor before uploading or downloading data.

2.Go to 0-50 LCP Copy.

3.Press [OK].

4.Select All from LCP.

5.Press [OK]. A progress bar shows the downloading process.

6.Press [Hand On] or [Auto On] to return to normal operation.

Restoring Default Settings

CAUTION: Initialization restores the unit to

factory default settings. Any programming, motor data, localization, and monitoring records will be lost. Uploading data to the LCP provides a backup prior to initialization.

Restoring the adjustable frequency drive parameter settings back to default values is done by initialization of the adjustable frequency drive. Initialization can be through 14-22 Operation Mode or manually.

• Initialization using 14-22 Operation Mode does not change adjustable frequency drive data such as operating hours, serial communication selections, personal menu settings, fault log, alarm log, and other monitoring functions.

• Using 14-22 Operation Mode is generally recommended.

• Manual initialization erases all motor, programming, localization, and monitoring data and restores factory default settings.

Recommended Initialization

1.Press [Main Menu] twice to access parameters.

2.Scroll to 14-22 Operation Mode.

3.Press [OK].

4.Scroll to Initialization.

5.Press [OK].

6.Remove power to the unit and wait for the display

to turn off. longer than normal.

8.Press [Reset] to return to operation mode.

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Manual Initialization

1.Remove power to the unit and wait for the display to turn off.

2.Press and hold [Status], [Main Menu], and [OK] at the same time and apply power to the unit.

Factory default parameter settings are restored during start-up. This may take slightly longer than normal.

Manual initialization does not reset the following adjustable frequency drive information:

• 15-00 Operating Hours

• 15-03 Power-ups

• 15-04 Over Temps

• 15-05 Over Volts

9.3 Password Protection

9.3.1 Enable Password Protection for

Main Menu

1.Press [Main Menu].

5.Scroll down to parameter 0-61 Access to Main Menu w/o Password.

6.Press [OK].

7.Change parameter 0-61 to “[2] LCP: No Access.”

8.Press [OK].

2.Select 0-** Operation / Display by pressing [OK].

3.Scroll Down to parameter 0-6* Password.

4.Press [OK].

The Main Menu is now password protected. The default password is 100.

9.3.2 Disable Main Menu Password

1.Follow steps 1-6 in section 9.3.1 above.

2.Change parameter 0-61 to “[0] Full Access.”

3.Press [OK].

The Main Menu Password is now disabled.

Taco® SKV

9.3.3 Change Password for Main Menu

1.Follow steps 1-4 in section 9.3.1 above.

2.Scroll down to parameter 0-60 Main Menu Password.

3.Press [OK].

4.Adjust/Edit the password using the arrow keys.

3.Scroll Down to parameter 0-6* Password.

4.Press [OK].

5.Scroll down to parameter 0-66 Access to Personal Menu w/o Password.

6.Press [OK].

5.Press [OK].

The Main Menu password is now changed.

9.3.4 Enable Password Protection for My Personal Menu

1.Press [Main Menu].

2.Select 0-** Operation / Display by pressing [OK].

7.Change parameter 0-66 to “[1] LCP: Read Only.”

8.Press [OK].

The My Personal Menu is now password protected. The default password is 200.

9.3.5 Disable Password Protection for My

Personal Menu

1.Follow steps 1-3 in in section 9.3.4 above.

2.Change parameter 0-66 to “[0] Full Access.”

3.Press [OK].

32 302-365, Effective: June 5, 2017

The Personal Menu password protection is now disabled.

9.3.6 Change Password for Personal Menu

1.Follow steps 1-4 in in section 9.3.4 above.

2.Scroll down to parameter 0-65 Personal Menu Password.

3.Press [OK].

4.Adjust/Edit the password using the arrow keys.

Taco® SKV

5.Press [OK].

The Personal Menu Pasword is now changed.

Taco® SKV

10 PUMP CONTROL SET-UPS

10.1 SelfSensing Description

The Taco SelfSensing pump is a Taco pump equipped with a variable frequency drive (VFD) with SelfSensing control technology. SelfSensing control is an innovative concept in circulating pumps. Pump performance and characteristic curves are embedded in the memory of the speed controller during manufacture. This data includes power, speed, head and flow across the flow range of the pump. During operation, the power and speed of the pump are monitored, enabling the controller to establish the hydraulic performance and position in the pumps head-flow characteristic.

These measurements enable the pump to continuously identify the head and flow at any point in time, giving accurate pressure control without the need for external feedback signals. Patented software technology within the controller ensures trouble-free operation in all conditions.

Incorporating the pump’s hydraulic data into the controller and removing sensors results in true integration of all components and removes the risk of sensor failure.

2.View the display to confirm the current set-up.

3.Press the [Quick Menus] button.

4.Press the [OK] button to enter “My Personal Menu.”

5.Scroll down to Parameter 0-10 Active Set-up and press OK.

10.2 Set-up Menu

The controller has 4 different system set-ups:

Set-up Description Instructions

Set-up 1 SelfSensing Variable Flow

Control

Set-up 2 Standby / BAS System Input Section 8.4.5

Set-up 3 SelfSensing Constant Flow

Control

Set-up 4 Delta P Control, 0-10V Input

(Wire Pressure Transducer)

10.2.1 Set-up Change Procedure

To change the set-up, follow the steps below.

1.If the pump is enabled, press the [Off] button and ensure the motor has stopped.

Section 10.3 (Wiring: Section 8.4.2)

Section 10.4 (Wiring: Section 8.4.2)

Section 8.4.3

6.Change Active Set-up from “Set-up 1” to “Set-up 3” and press OK.

a.Parameter 0-10 Active Set-up.

Before

After

b.You will know the change has happened when

you see change to .

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Taco® SKV

10.3 Variable Flow Control (Flow Compensation)

Under Variable Flow Control (otherwise known as Flow Compensation mode), the controller is set to control the pump speed according to a ‘control curve’ between max and min flow (see Figure 10-1 below). This mode should be used for system distribution pumps. It is widely recognised that fitting a differential pressure sensor at the most remote load, across the supply piping and return piping encompassing the valve & coil set, is the benchmark scheme for energy efficiency.

Figure 10-1: Variable Flow Graph

Control Head

The pump will be supplied with point ‘A’ set as the design duty point provided at the time of order and the minimum head at zero flow (Control Head) will be set as 40% of the design head ‘H

To change the control curve from the factory settings, follow the startup procedures in “Appendix B: On-site Drive Mounting to Wall or Pump” on page 83.

’ as the default.

DESIGN

10.4 Constant Flow Control

SelfSensing pumps can be configured to maintain a constant pump flow in a system. This control setting is ideal for primary systems such as boiler or chiller loops that require a constant flow.

10.4.1 For Central Plant, Constant Flow Boiler/Chiller

If this pump was ordered for a central plant constant flow boiler/chiller, you do not need to go through the balancing procedures below. Ensure the drive is already in Set-up 3 (SelfSensing Constant Flow Mode) and is therefore already self-balancing.

Figure 10-2: Constant Flow Graph

SelfSensing pumps can replicate this control without the need for the remote sensor. As the flow required by the system is reduced, the pump automatically reduces the head developed according to the pre-set control curve. In other words, the pump follows the control curve.

It is often found that using a remote differential pressure sensor to sense the pressure across a remote load could theoretically result in loads close to the pump being under-pumped. The situation would be where the load at a loop extremity is satisfied and the control valve closes while a load close to the pump needs full flow. The probability of this occuring is remote but it is possible. One answer to this is to move the sensor closer to the pump (two-thirds out in the system is a popular recommendation) although physically re-positioning the sensor at a commissioning stage can be a costly exercise. With SelfSensing pump control it is possible to replicate the moving of a sensor by increasing the Control Head setting.

The design duty head and flow of the pump (provided at time of order) is shown as point ‘A’ in Figure 10-1 below.

It is not always the case that the design duty point required will fall on the maximum speed of the pump and in the majority of cases (as shown in Figure 10-1 above) it will be at a reduced speed.

To set the pump to constant flow mode and adjust the flow rate, follow steps 1-12 in section 12.3.1.

10.4.2 Settings for Constant Flow Control

Taco® SKV

10.5 Constant Pressure Control

SelfSensing pumps can be configured to maintain a constant pump head in a system as the demand varies. This effectively simulates the mounting of a differential pressure sensor at, or near, the pump.

Figure 10-3: Constant Pressure Graph

10.5.1 Settings for Constant Pressure Control

To revert to this mode of control simply follow these steps:

1. Set the design head, H point 1) in the units set in par. 20-12 (Reference/Feedback Unit).

2. Turn off flow compensation by setting par. 22-80 to ‘Disabled’ [0].

, value in par. 20-21 (Set-

DESIGN

For external sequencer wiring instructions, see “8.4.5 Control from external PLC/BMS through Analog Input” on page 26.

10.6 Sequencing (Standby Pump Alternation)

10.6.1 Onboard Pump Sequencer

The SelfSensing pump is equipped with a built-in pump sequencer. The sequencer alternates 2 pumps back and forth according to a time interval. The factory default is 24 hours. The maximum value is 99 hours. If the duty pump has a fault or failure, the duty pump stops and the waiting pump automatically starts.

For detailed connections and settings for the pump’s onboard pump sequencer see “Appendix A: Set-Up for Standby Pump Alternation” on page 78.

10.6.2 External Pump Sequencers

The SelfSensing pump can be sequenced with external pump sequencers.

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Taco® SKV

11 START-UP PROCEDURE

11.1 Check Points Before First Start

Verify that motor is correctly wired for voltage available.

Verify that the pump has been primed. The pump should never be run dry.

NOTE: Extra effort may be required to get the air out of the seal chamber.

WARNING: Make sure power supply to pump motor is locked out before touching motor shaft.

Verify that all rotating parts turn freely.

11.2 Check Motor Rotation

Before running the frequency converter, check the motor rotation. The motor will run briefly at 20Hz or the minimum frequency set in 4-12 Motor Speed Low Limit [Hz].

1.Check Motor rotation. a.Press [Quick Menu]. b.Scroll to Q2 Quick Set-up. c. Press [OK]. d.Scroll to 1-28 Motor Rotation Check. e.Press [OK]. f. Scroll to Enable. g.The following text appears: “Note! Motor may run

in wrong direction.” h.Press [OK]. i. Follow the on-screen instructions.

NOTE: To change the direction of rotation, remove power to the frequency converter and wait for power to discharge. Reverse the connection of any two of the three motor cables on the motor or frequency converter side of the connection.

The pump should be stopped if any of the following occur:

• No discharge.

• Insufficient discharge.

• Insufficient pressure.

• Loss of suction.

• Excessive power consumption.

• Vibration.

See “16 SKS Pump Problem Analysis” on page 74 for help in troubleshooting.

2.To navigate on the keypad, use the [OK] and [ARROW] buttons shown below.

3.Ensure the drive is in Set-up 1.

11.3 Start Pump

CAUTION: MOTOR START! Ensure that the

motor, system, and any attached equipment is ready for start. It is the responsibility of the user to ensure safe operation under any condition. Failure to ensure that the motor, system, and any attached equipment is ready for start could result in personal injury or equipment damage.

5.Press the [OK] button to enter “My Personal

4.To change to Set-up 1, press the [Quick Menus] button.

Taco® SKV

Menu.”

6.Scroll down to Parameter 0-10 Active Set-up and press OK.

7.Change Active Set-up to “Set-up 1”. a.Parameter 0-10 Active Set-up.

Before

After

11.4 Verify Flow

The VFD is factory programmed with the Design Pressure Head and Design VFD Speed that were indicated at the time of order.

If this pump was ordered for a system distribution pump (quadratic system curve), it ships in Set-up 1 (it will track a system control curve like the one shown in Figure 10-

1).

Follow the steps below to determine whether the pump is producing the required amount of flow.

13.Close zone valves to ensure pump speed slows as demand is reduced. Then open the valves to ensure the pump increases speed until it reaches the desired flow.

14.If the pump is not meeting the desired flow conditions, as shown in the figure below, see “12 System Balancing” on page 39.

Figure 11-1: Over-sized Pump Example

b.You will know the change has happened when

you see change to .

8.Press the [Status] button to get back to the main screen.

9.Close the discharge valve before starting pump.

DANGER: MAKE SURE SUCTION VALVE IS OPEN!!

10.Press the [Auto on] button.

11.Once the pump has started, open the discharge valve slowly.

CAUTION: Do not operate pump for prolonged periods with discharge valve closed, to avoid overheating and potentially damaging loads.

12.After the discharge valve is fully open, let the drive ramp up to the design flow point that was specified.

IMPORTANT: Allow the pump enough time to settle out at the specified design flow.

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12 SYSTEM BALANCING

12.1 About SelfSensing ProBalance

The pump is equipped with SelfSensing ProBalance technology. SelfSensing ProBalanceTM technology is a revolutionary system balancing method that utilizes the VFD’s SelfSensing capabilities to enable the user to accomplish easy do-it-yourself system balancing.

This guide provides a method to reset the control curve previously discussed in Section 10.2. The goal is to move the adjusted operating point at design flow so that it falls on the actual system resistance curve (Point C in Figure 12-3).

12.1.1 A Visual Guide to Balancing

Below is a graphical guide and overview of the balancing process.

Figure 12-1: Start and Assess

For information about the step above, see sections 11.3 and 11.4.

Figure 12-2: Measure System Resistance

For information about the step above, see section 12.3.1.

Figure 12-3: Reset Control Curve

For information about the step above, see section 12.3.2.

Taco® SKV

12.2 My Personal Menu for ProBalance

The My Personal Menu is arranged in order to take you step by step through the SelfSensing ProBalance system balancing process.

Before you begin, it is recommended to acquaint yourself with the My Personal Menu.

1.Press the [Quick Menus] button.

7.Press [OK] when the parameter adjustment is complete.

8.Press the down arrow button to scroll down to each consecutive parameter in the My Personal Menu as you follow the balancing process detailed in Section 12.3.

9.The My Personal Menu structure is shown below.

2.My Personal Menu appears at the top of the list.

3.Press the [OK] button.

4.Press the down arrow key to scroll down the My Personal Menu of parameters.

As you press the down arrow key, the scroll bar position moves down as you scroll from one parameter to the next.

12.2.1 My Personal Menu Structure

Table 8: My Personal Menu

Parameter Number Description

20-21 Set Point 22-89 Flow at Design Point 0-10 Active Set-up 20-00 Feedback 1 Source 1-00 Configuration Mode 22-86 Speed at Design Point 22-87 Pressure at No-Flow Speed 22-84 Speed at No-Flow [Hz] 20-00 Feedback 1 Source 1-00 Configuration Mode 20-12 Reference/Feedback Unit 20-60 Sensorless Unit 20-21 Set Point 13-20 SL Controller Timer 0-10 Active Set-up 22-80 Flow Compensation 22-81 Square-Linear Curve 4-14 Motor Speed High Limit [Hz]

5.After you arrive at the parameter you wish to adjust, press the [OK] button.

6.Use the arrow buttons to select/adjust the parameter.

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Taco® SKV

12.3 Balancing Procedure

12.3.1 Measure System Resistance

Figure 12-4 shows a typical system response at startup. Point A is programmed at the factory per the specification/equipment schedule and the pump is set to stay on the control curve shown in Figure 12-1. However, pumps are typically oversized due to safety factor. Since the actual system resistance is too low for the pump to operate at Point A, after it reaches its max speed (typically 60hz), the pump will 'run out' to the right on the 60hz curve to Point B.

Figure 12-4: Measure System Resistance

3.Press the [Off] Button.

4.Ensure the drive is in the set-up you ordered.

5.Press the [Quick Menus] button.

6.Press the [OK] button to enter “My Personal Menu.”

The following procedure shows how to measure the actual system resistance at the intended design flow. (Point C) This point is used later to reprogram the pump to operate along the adjusted control curve shown in Figure 12-3.

1.Ensure the system is filled and all valves are set to 100% open.

2.To navigate on the keypad use the [OK] and [ARROW] buttons shown below.

7.Scroll down to Parameter 0-10 Active Set-up and press OK.

8.Change Active Set-up from “Set-up 1” to “Set-up 3” and press OK.

a.Parameter 0-10 Active Set-up.

Before

After

b.You will know the change has happened when

you see change to .

Taco® SKV

9.Scroll up to parameter 20-21 Setpoint 1 and press OK.

10.Set the system’s flow at design point (flow value that was specified at the time of order is already displayed) and press [OK].

a.Parameter 20-21 Setpoint 1.

11.Press the [Auto on] button.

12.Press the [Status] button to get back to the main screen.

12.3.2 Set Adjusted Operating Point at Design Flow

Figure 12-5: Set Control Curve Max (Point C)

Point C

1.Press the [Quick Menus] button.

2.Press the [OK] button to enter “My Personal Menu.”

3.Scroll down to parameter 0-10 Active Set-up and press OK.

a.Let the drive ramp up to the design flow point

that was specified.

b.IMPORTANT: Allow the pump enough time to

settle out at the specified design flow.

c. IMPORTANT: Record the Hz and ft WG dis-

played on the top of the LCD.

13.Press the [Off] Button.

a.Wait for the pump to come to a complete stop

before moving to the next step.

4.Change Active Set-up from “Set-up 3” to “Set-up 1” then press OK.

a.Parameter 0-10 Active Set-up.

Before

After

b.You will know the change has happened when

you see change to .

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Taco® SKV

5.Scroll down to parameter 20-00 Feedback Source and press OK.

6.Change feedback from “Sensorless Pressure” to “No function” then press OK.

a.Parameter 20-00 = Feedback 1 Source.

Before

After

9.Scroll down to to parameter 22-86 Speed at Design Point and press OK.

10.Enter the Hz you recorded in Set-up 3 (from Step 12 above) and press OK.

a.Parameter 22-86 = Speed at Design Point [Hz].

11.Scroll down to parameter 20-00 Feedback 1 Source and press OK.

7.Scroll down to parameter 1-00 Configuration Mode and press OK.

8.Change the Configuration Mode from “Closed Loop” to “Open Loop” then press OK.

a.Parameter 1-00 = Configuration Mode.

Before

After

12.Change feedback from “No function” to “Sensorless Pressure” and press OK.

a.Parameter 20-00 = Feedback 1 Source.

Before

After

13.Scroll down to parameter 1-00 Configura- tion Mode and press OK.

Taco® SKV

14.Change the Configuration Mode from “Open Loop” to “Closed Loop” and press OK.

a.Parameter 1-00 = Configuration Mode.

Before

After

15.Scroll down to parameter 20-12 Reference/ Feedback Unit and press OK.

set the units back to GPM for proper function. Then press OK.

a.Parameter 20-60 = Sensorless Unit to GPM.

19.Scroll down to parameter 20-21 Setpoint 1and press OK.

20.Enter the Pressure Head set point (ft WG) that you previously recorded (from Step 12). Then press OK.

16.Change the Reference/Feedback Unit to ft WG (press the [Down Arrow] button to reach the setting faster). IMPORTANT: Due to the change in parameters, the drive will default back to metric units. It is important to set the units back to ft WG for proper function. Then press OK.

a.Parameter 20-12 = Reference/Feedback Unit to

ft Wg.

17.Scroll down to parameter 20-60 Sensorless Unit and press OK.

a.Parameter 20-21 = Setpoint 1.

21.Press the [Auto on] button to start the pump.

22.Press the [Status] button to get back to the main screen.

23.Press the [Quick Menus] button.

18.Change Sensorless Unit to GPM (press the [Up Arrow] button to reach the setting faster). IMPORTANT: Due to the change in parameters, the drive will default back to metric units. It is important to

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Taco® SKV

24.Press the [OK] button to enter “My Personal Menu.”

25.Scroll down to parameter 22-89 Flow at Design Point and press OK.

a.Parameter 22-89 Flow at Design Point.

26.Press the [Status] button to get back to the main screen.

3.Press the [OK] button to enter “My Personal Menu.”

4.Scroll down to Parameter 0-10 Active Set-up and press OK.

5.Change Active Set-up from “Set-up 1” to “Set-up 3” and press OK.

a.Parameter 0-10 Active Set-up.

Before

27.The programming process is now complete.

12.3.3 Set Control Head

This Step is Optional.

Follow this procedure to reset the control head (Point D). The factory default setting for Point D is 40% of the design head value (point A).

Figure 12-6: Control Head (Control Curve

Minimum - Point D)

Point D

1.Press the [Off] Button.

2.Press the [Quick Menus] button.

After

b.You will know the change has happened when

you see change to .

6.Scroll up to parameter 20-21 Setpoint 1 and press OK.

7.Set the system’s flow at design point (flow value that was specified at the time of order is already displayed) and press [OK].

Taco® SKV

a.Parameter 20-21 Setpoint 1.

8.Press the [Auto on] button.

9.Press the [Status] button to get back to the main screen.

a.Let the drive ramp up to the design flow point

that was specified.

b.IMPORTANT: Allow the pump enough time to

settle out at the specified design flow.

10.Press the [Off] Button.

a.Parameter 0-10 Active Set-up.

Before

After

b.You will know the change has happened when

you see change to .

15.Scroll down to parameter 20-00 Feedback Source and press OK.

16.Change feedback from “Sensorless Pressure” to “No function” then press OK.

a.Wait for the pump to come to a complete stop

before moving to the next step.

11.Press the [Quick Menus] button.

12.Press the [OK] button to enter “My Personal Menu.”

13.Scroll down to parameter 0-10 Active Set- up and press OK.

14.Change Active Set-up from “Set-up 3” to “Set-up 1” then press OK.

a.Parameter 20-00 = Feedback 1 Source.

Before

After

17.Scroll down to parameter 1-00 Configura- tion Mode and press OK.

18.Change the Configuration Mode from “Closed Loop” to “Open Loop” then press OK.

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Taco® SKV

a.Parameter 1-00 = Configuration Mode.

Before

After

19.Scroll down to parameter 22-87 Pressure at No-Flow Speed and press OK.

20.Set the desired Pressure at No-Flow in ft WG (Control Head) then press OK.

a.Parameter 22-84 = Speed at No-Flow.

23.Scroll down to parameter 20-00 Feedback 1 Source and press OK.

24.Change feedback from “No function” to “Sensorless Pressure” and press OK.

a.Parameter 20-00 = Feedback 1 Source.

a.Parameter 22-87 = Pressure at No-Flow Speed.

21.Scroll down to parameter 22-84 Speed at No-Flow and press OK.

22.Set the VFD Speed required to produce the desired static pressure head when your system is at No-Flow conditions. The factory default is 40% of Design Pressure Head. Consult the online reference look up table for your specific pump model to determine the relationship between static head pressure and VFD Speed requirements. Then press OK.

Before

After

25.Scroll down to parameter 1-00 Configura- tion Mode and press OK.

26.Change the Configuration Mode from “Open Loop” to “Closed Loop” and press OK.

Taco® SKV

a.Parameter 1-00 = Configuration Mode.

Before

After

27.Scroll down to parameter 20-12 Reference/ Feedback Unit and press OK.

28.Change the Reference/Feedback Unit to ft WG (press the [Down Arrow] button to reach the setting faster). IMPORTANT: Due to the change in parameters, the drive will default back to metric units. It is important to set the units back to ft WG for proper function. Then press OK.

a.Parameter 20-60 = Sensorless Unit to GPM.

31.Press the [Auto on] button to start the pump.

32.Press the [Status] button to get back to the main screen.

33.The programming process is now complete and you can run the drive.

a.Parameter 20-12 = Reference/Feedback Unit to

ft Wg.

29.Scroll down to parameter 20-60 Sensorless Unit and press OK.

30.Change Sensorless Unit to GPM (press the [Up Arrow] button to reach the setting faster). IMPORTANT: Due to the change in parameters, the drive will default back to metric units. It is important to set the units back to GPM for proper function. Then press OK.

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12.3.4 Flow Fine Tuning

After balancing is complete, if the flow at Point C requires fine tuning, simply increase or decrease Parameter 20-21 Setpoint 1 until desired flow is achieved. Follow this procedure to adjust the setpoint.

1.Press the [Quick Menus] button.

2.Press the [OK] button to enter “My Personal Menu.”

3.Scroll down to parameter 20-21 Setpoint 1 and press OK.

4.Enter the Pressure Head set point (ft WG) that will achieve the desired flow. Then press OK.

• Par 22-81 (Square-linear Curve Approximation), which should be set to ‘100%’.

Figure 12-7: Curve Approximation Settings

The effect of adjusting par. 22-81 is shown in Figure 12-7 above. A setting of 100% gives the ideal theoretical control curve between the design head and minimum head while 0% provides a straight line linear approximation.

a.Parameter 20-21 = Setpoint 1.

5.Press the [Auto on] button to start the pump.

6.Press the [Status] button to get back to the main screen.

12.4 Additional Settings

Other settings that are set to enable the pump to operate on a control curve are:

• Par. 22-80 (Flow Compensation), which should be set to ‘Enabled’ [1]

Taco® SKV

20-73 Minimum Feedback Level

20-74 Maximum Feedback Level

1-00 Configuration Mode 20-71 PID Performance

20-12 Reference/Feedback Unit 20-72 PID Output Change

20-13 Minimum Reference/

Feedb.

Unit

Feedb.

Q3-32 Multi Zone / Adv

6-10 Terminal 53 Low Voltage 20-79 PID Autotuning

6-11 Terminal 53 High Voltage

6-12 Terminal 53 Low Current 1-00 Configuration Mode

Feedb. Value

3-16 Reference 2 Source

Constant

6-00 Live Zero Timeout Time 6-14 Terminal 53 Low Ref./Feedb.

20-02 Feedback 1 Source Unit

20-00 Feedback 1 Source

Value

6-15 Terminal 53 High Ref./

Feedb. Value

20-21 Setpoint 1 6-22 Terminal 54 Low Current 20-01 Feedback 1 Conversion

6-01 Live Zero Timeout Func-

tion

20-03 Feedback 2 Source

6-24 Terminal 54 Low Ref./Feedb.

Value

Feedb. Value

Control

20-04 Feedback 2 Conversion

stant

20-93 PID Proportional Gain 6-27 Terminal 54 Live Zero 20-05 Feedback 2 Source Unit

20-94 PID Integral Time 6-00 Live Zero Timeout Time 20-06 Feedback 3 Source

20-08 Feedback 3 Source Unit

trol

20-70 Closed-loop Type 6-01 Live Zero Timeout Function 20-07 Feedback 3 Conversion

20-71 PID Performance 20-81 PID Normal/ Inverse Con-

20-72 PID Output Change 20-82 PID Start Speed [RPM] 20-12 Reference/Feedback Unit

Q3-2 Open-loop Settings 6-22 Terminal 54 Low Current 20-14 Maximum Reference/

Q3-20 Digital Reference 6-24 Terminal 54 Low Ref./

13.0.1 Quick Menu Structure - page 1

Q3-1 General Settings 0-24 Display Line 3 Large 1-00 Configuration Mode Q3-31 Single Zone Ext. Setpoint 20-70 Closed-loop Type

Q3-10 Adv. Motor Settings 0-37 Display Text 1 20-12 Reference/Feedback

1-90 Motor Thermal Protection 0-38 Display Text 2 20-13 Minimum Reference/

1-93 Thermistor Source 0-39 Display Text 3 20-14 Maximum Reference/

1-29 Automatic Motor Adaptation

(AMA)

13 MENUS

50 302-365, Effective: June 5, 2017

14-01 Switching Frequency

5-13 Terminal 29 Digital

Input

5-14 Terminal 32 Digital

Input

4-53 Warning Speed High 3-02 Minimum Reference 6-25 Terminal 54 High Ref./

Q3-11 Analog Output 3-03 Maximum Reference 6-26 Terminal 54 Filter Time

6-50 Terminal 42 Output 3-10 Preset Reference 6-27 Terminal 54 Live Zero 6-13 Terminal 53 High Current 3-15 Reference 1 Source

6-51 Terminal 42 Output Min

Scale

6-52 Terminal 42 Output Max

Scale

Input

Q3-21 Analog Reference 20-81 PID Normal/ Inverse

0-70 Date and Time

Q3-12 Clock Settings 5-15 Terminal 33 Digital

0-71 Date Format 3-02 Minimum Reference 20-82 PID Start Speed [RPM] 6-25 Terminal 54 High Ref./

0-72 Time Format 3-03 Maximum Reference 20-83 PID Start Speed [Hz] 6-26 Terminal 54 Filter Time Con-

age

rent

0-74 DST/Summertime 6-10 Terminal 53 Low Volt-

0-76 DST/Summertime Start 6-11 Terminal 53 High Volt-

0-77 DST/Summertime End 6-12 Terminal 53 Low Cur-

Q3-13 Display Settings 6-13 Terminal 53 High Cur-

0-20 Display Line 1.1 Small 6-14 Terminal 53 Low Ref./

Feedb. Value

Taco® SKV

Feedb.

20-93 PID Proportional Gain 20-14 Maximum Reference/

20-83 PID Start Speed [Hz] 20-13 Minimum Reference/

Level

20-73 Minimum Feedback

Level

20-79 PID Autotuning 20-94 PID Integral Time 6-10 Terminal 53 Low Voltage

Speed

Q3-42 Compressor Functions

22-24 No-Flow Delay 22-23 No-Flow Function 22-89 Flow at Design Point

1-71 Start Delay

22-43 Wake-up Speed [Hz] 1-03 Torque Characteristics

ference

ence

2-10 Brake Function 22-46 Maximum Boost Time 22-76 Interval between Starts

2-16 AC Brake Max. Current 22-26 Dry Pump Function 22-77 Minimum Run Time

5-12 Terminal 27 Digital Input

22-83 Speed at No-Flow [RPM] 5-40 Function Relay

Approximation

1-86 Trip Speed Low [RPM]

22-86 Speed at Design Point [Hz] 1-87 Trip Speed Low [Hz]

[RPM]

rent

Q3-41 Pump Functions 22-85 Speed at Design Point

Q3-3 Closed-loop Settings 20-74 Maximum Feedback

Q3-30 Single Zone Int. Set-

Feedb. Value

point

Control

13.0.2 Quick Menu Structure - page 2

0-21 Display Line 1.2 Small 6-15 Terminal 53 High Ref./

0-23 Display Line 2 Large

0-22 Display Line 1.3 Small

6-11 Terminal 53 High Voltage 20-21 Setpoint 1 22-22 Low Speed Detection 22-21 Low Power Detection 22-87 Pressure at No-Flow

6-12 Terminal 53 Low Current 20-22 Setpoint 2 22-23 No-Flow Function 22-22 Low Speed Detection 22-88 Pressure at Rated Speed

6-13 Terminal 53 High Current 20-81 PID Normal/ Inverse

20-82 PID Start Speed [RPM] 22-40 Minimum Run Time 22-24 No-Flow Delay 22-90 Flow at Rated Speed

20-83 PID Start Speed [Hz] 22-41 Minimum Sleep Time 22-40 Minimum Run Time 1-03 Torque Characteristics

20-93 PID Proportional Gain 22-42 Wake-up Speed [RPM] 22-41 Minimum Sleep Time 1-73 Flying Start

6-14 Terminal 53 Low Ref./

Feedb. Value

6-15 Terminal 53 High Ref./

Feedb. Value

6-16 Terminal 53 Filter Time Con-

6-20 Terminal 54 Low Voltage 20-70 Closed-loop Type 22-44 Wake-up Ref./FB Dif-

stant

6-17 Terminal 53 Live Zero 20-94 PID Integral Time 22-43 Wake-up Speed [Hz] 22-42 Wake-up Speed [RPM]

Level

20-74 Maximum Feedback

Level

6-22 Terminal 54 Low Current 20-72 PID Output Change 22-46 Maximum Boost Time 22-45 Setpoint Boost 22-75 Short Cycle Protection

6-21 Terminal 54 High Voltage 20-71 PID Performance 22-45 Setpoint Boost 22-44 Wake-up Ref./FB Differ-

6-23 Terminal 54 High Current 20-73 Minimum Feedback

6-24 Terminal 54 Low Ref./

Feedb. Value

Q3-4 Application Settings 1-73 Flying Start 22-80 Flow Compensation 5-02 Terminal 29 Mode

20-79 PID Autotuning 2-17 Over-voltage Control 22-27 Dry Pump Delay 5-01 Terminal 27 Mode

6-25 Terminal 54 High Ref./

Feedb. Value

6-26 Terminal 54 Filter Time Con-

Q3-40 Fan Functions 1-71 Start Delay 22-81 Square-linear Curve

6-00 Live Zero Timeout Time 22-60 Broken Belt Function 1-80 Function at Stop 22-82 Work Point Calculation 5-13 Terminal 29 Digital Input

6-01 Live Zero Timeout Function 22-61 Broken Belt Torque 2-00 DC Hold/Preheat Cur-

6-27 Terminal 54 Live Zero

stant

4-56 Warning Feedback Low 22-62 Broken Belt Delay 4-10 Motor Speed Direction 22-84 Speed at No-Flow [Hz] 1-73 Flying Start

20-20 Feedback Function 1-03 Torque Characteristics 22-20 Low Power Auto Set-

4-57 Warning Feedback High 4-64 Semi-Auto Bypass Set-

51 302-365, Effective: June 5, 2017

Taco® SKV

Stop [Hz]

1-5* Load-Indep. Setting 1-87 Trip Speed Low [Hz]

1-90 Motor Thermal Protection

1-9* Motor Temperature

Speed

1-51 Min Speed Normal Magne-

1-91 Motor External Fan

tizing [RPM]

Days

2-** Brakes

tizing [Hz]

1-** Load and Motor 1-58 Flystart Test Pulses Current 1-93 Thermistor Source

quency

1-6* Load-Depend. Settg. 2-0* DC Brake

2-03 DC Brake Cut-in Speed

2-00 DC Hold/Preheat Current

2-01 DC Brake Current

sation

1-03 Torque Characteristics 1-60 Low Speed Load Compen-

[RPM]

2-1* Brake Energy Funct.

Constant

Time Constant

1-2* Motor Data 1-62 Slip Compensation 2-02 DC Braking Time

2-13 Brake Power Monitoring

1-7* Start Adjustments 2-10 Brake Function

1-23 Motor Frequency

1-24 Motor Current 1-71 Start Delay 2-11 Brake Resistor (ohm)

1-25 Motor Nominal Speed 1-73 Flying Start 2-12 Brake Power Limit (kW)

2-15 Brake Check

2-16 AC Brake Max. Current

1-78 Compressor Start Max

Speed [Hz]

Speed [RPM]

3-** Reference / Ramps

to Trip

1-8* Stop Adjustments 2-17 Over-voltage Control

tation (AMA)

0-4* LCP Keypad 0-82 Additional Working Days 1-50 Motor Magnetization at Zero

13.0.3 Main Menu Structure - page 1

0-05 Local Mode Unit 0-42 [Auto on] Key on LCP

0-01 Language 0-39 Display Text 3 0-81 Working Days

0-** Operation / Display 0-37 Display Text 1 0-77 DST/Summertime End 1-36 Iron Loss Resistance (Rfe) 1-82 Min Speed for Function at

52 302-365, Effective: June 5, 2017

0-02 Motor Speed Unit

0-0* Basic Settings 0-38 Display Text 2 0-79 Clock Fault 1-39 Motor Poles 1-86 Trip Speed Low [RPM]

0-04 Operating State at Power-up 0-41 [Off] Key on LCP 0-89 Date and Time Readout 1-52 Min Speed Normal Magne-

0-03 Regional Settings 0-40 [Hand on] Key on LCP 0-83 Additional Non-Working

0-1* Set-up Operations 0-43 [Reset] Key on LCP 1-0* General Settings 1-59 Flystart Test Pulses Fre-

LCP

0-5* Copy/Save 1-06 Clockwise Direction 1-61 High Speed Load Compen-

0-10 Active Set-up 0-44 [Off/Reset] Key on LCP 1-00 Configuration Mode

0-12 This Set-up Linked to

0-11 Programming Set-up 0-45 [Drive Bypass] Key on

0-51 Set-up Copy 1-20 Motor Power [kW] 1-63 Slip Compensation Time

0-13 Readout: Linked Set-ups 0-50 LCP Copy

0-14 Readout: Prog. Set-ups /

Channel

o Password

word

Menu w/o Password

0-7* Clock Settings 1-28 Motor Rotation Check 1-77 Compressor Start Max

0-20 Display Line 1.1 Small 0-60 Main Menu Password 1-22 Motor Voltage 1-65 Resonance Dampening

0-2* LCP Display 0-6* Password 1-21 Motor Power [HP] 1-64 Resonance Dampening 2-04 DC Brake Cut In Speed [Hz]

0-21 Display Line 1.2 Small 0-61 Access to Main Menu w/

0-22 Display Line 1.3 Small 0-65 Personal Menu Pass-

0-23 Display Line 2 Large 0-66 Access to Personal

0-24 Display Line 3 Large

0-25 My Personal Menu 0-70 Date and Time 1-29 Automatic Motor Adap-

0-30 Custom Readout Unit 0-72 Time Format 1-30 Stator Resistance (Rs)

0-3* LCP Cust. Readout 0-71 Date Format 1-3* Addl. Motor Data 1-79 Compressor Start Max Time

0-31 Custom Readout Min Value 0-74 DST/Summertime 1-31 Rotor Resistance (Rr) 1-80 Function at Stop

5-93 Pulse Out #27 Bus Control

3-0* Reference Limits

set

trol

Preset

6-00 Live Zero Timeout Time

6-01 Live Zero Timeout Function

6-02 Fire Mode Live Zero Time-

out Function

6-11 Terminal 53 High Voltage

6-13 Terminal 53 High Current

6-12 Terminal 53 Low Current

Feedb. Value

6-15 Terminal 53 High Ref./

Feedb. Value

Taco® SKV

Constant

6-17 Terminal 53 Live Zero

101)

Stop [RPM]

5-4* Relays 5-94 Pulse Out #27 Timeout Pre-

5-40 Function Relay 5-95 Pulse Out #29 Bus Control

4-6* Speed Bypass 5-33 Term X30/7 Digi Out (MCB

[RPM]

[Hz]

0-76 DST/Summertime Start 1-35 Main Reactance (Xh) 1-81 Min Speed for Function at

5-5* Pulse Input 5-98 Pulse Out #X30/6 Timeout

5-** Digital In/Out 5-50 Term. 29 Low Frequency 6-** Analog In/Out

5-0* Digital I/O mode 5-51 Term. 29 High Frequency 6-0* Analog I/O Mode

4-** Limits / Warnings 4-63 Bypass Speed To [Hz] 5-42 Off Delay, Relay 5-97 Pulse Out #X30/6 Bus Con-

[RPM]

Value

#29

5-1* Digital Inputs 5-55 Term. 33 Low Frequency 6-1* Analog Input 53

5-01 Terminal 27 Mode 5-53 Term. 29 High Ref./Feedb.

5-02 Terminal 29 Mode 5-54 Pulse Filter Time Constant

[RPM]

5-10 Terminal 18 Digital Input 5-56 Term. 33 High Frequency 6-10 Terminal 53 Low Voltage

[Hz]

Mode

Value

#33

5-6* Pulse Output 6-14 Terminal 53 Low Ref./

5-62 Pulse Output Max Freq #27 6-16 Terminal 53 Filter Time

Variable

5-63 Terminal 29 Pulse Output

Input

Variable

Input

13.0.4 Main Menu Structure - page 2

0-32 Custom Readout Max

Value

3-03 Maximum Reference 3-93 Maximum Limit 4-60 Bypass Speed From

3-02 Minimum Reference 3-92 Power Restore

3-04 Reference Function 3-94 Minimum Limit 4-61 Bypass Speed From

3-10 Preset Reference

3-1* References 3-95 Ramp Delay 4-62 Bypass Speed to [RPM] 5-41 On Delay, Relay 5-96 Pulse Out #29 Timeout Pre-

3-11 Jog Speed [Hz] 4-1* Motor Limits 4-64 Semi-Auto Bypass Set-

3-13 Reference Site 4-10 Motor Speed Direction

3-14 Preset Relative Reference 4-11 Motor Speed Low Limit

3-15 Reference 1 Source 4-12 Motor Speed Low Limit [Hz] 5-00 Digital I/O Mode 5-52 Term. 29 Low Ref./Feedb.

3-16 Reference 2 Source 4-13 Motor Speed High Limit

3-4* Ramp 1 4-17 Torque Limit Generator

3-41 Ramp 1 Ramp-up Time 4-18 Current Limit 5-11 Terminal 19 Digital Input 5-57 Term. 33 Low Ref./Feedb.

3-17 Reference 3 Source 4-14 Motor Speed High Limit

3-19 Jog Speed [RPM] 4-16 Torque Limit Motor Mode

3-42 Ramp 1 Ramp-down Time 4-19 Max Output Frequency 5-12 Terminal 27 Digital Input 5-58 Term. 33 High Ref./Feedb.

3-51 Ramp 2 Ramp-up Time 4-50 Warning Current Low 5-14 Terminal 32 Digital Input

3-5* Ramp 2 4-5* Adj. Warnings 5-13 Terminal 29 Digital Input 5-59 Pulse Filter Time Constant

3-8* Other Ramps 4-52 Warning Speed Low 5-16 Terminal X30/2 Digital

3-52 Ramp 2 Ramp-down Time 4-51 Warning Current High 5-15 Terminal 33 Digital Input 5-60 Terminal 27 Pulse Output

3-80 Jog Ramp Time 4-53 Warning Speed High 5-17 Terminal X30/3 Digital

Taco® SKV

6-20 Terminal 54 Low Voltage

6-21 Terminal 54 High Voltage

5-65 Pulse Output Max Freq #29 6-2* Analog Input 54

put Variable

5-3* Digital Outputs 5-66 Terminal X30/6 Pulse Out-

Input

5-9* Bus Controlled 6-22 Terminal 54 Low Current

5-68 Pulse Output Max Freq

#X30/6

put

10-** CAN Fieldbus

5-90 Digital & Relay Bus Control 6-23 Terminal 54 High Current

5-32 Term X30/6 Digi Out

(MCB 101)

8-52 DC Brake Select 9-16 PCD Read Configuration

9-27 Parameter Edit 10-02 MAC ID

Counter

9-45 Fault Code 10-07 Readout Bus Off Counter

9-44 Fault Message Counter 10-06 Readout Receive Error

8-7* BACnet 9-28 Process Control 10-05 Readout Transmit Error

Select

Instance

9-47 Fault Number 10-1* DeviceNet

Frames

tion

10-2* COS Filters

8-81 Bus Error Count 9-65 Profile Number 10-14 Net Reference

Function

6-64 Terminal X30/8 Output

Timeout Preset

13.0.5 Main Menu Structure - page 3

3-81 Quick Stop Ramp Time 4-54 Warning Reference Low 5-18 Terminal X30/4 Digital

54 302-365, Effective: June 5, 2017

3-9* Digital Pot. meter 4-56 Warning Feedback Low 5-30 Terminal 27 Digital Out-

3-82 Starting Ramp Up Time 4-55 Warning Reference High

3-91 Ramp Time 4-58 Missing Motor Phase

3-90 Step Size 4-57 Warning Feedback High 5-31 Terminal 29 Digital Out-

6-24 Terminal 54 Low Ref./

Feedb. Value

8-** Comm. and Options 8-53 Start Select 9-18 Node Address 10-0* Common Settings

8-0* General Settings 8-54 Reversing Select 9-22 Telegram Selection 10-00 CAN Protocol

6-25 Terminal 54 High Ref./

Feedb. Value

6-27 Terminal 54 Live Zero 8-01 Control Site 8-55 Set-up Select 9-23 Parameters for Signals 10-01 Baud Rate Select

6-26 Terminal 54 Filter Time

Constant

8-03 Control Timeout Time

6-3* Analog Input X30/11 8-02 Control Source 8-56 Preset Reference

6-30 Terminal X30/11 Low Volt-

age

8-04 Control Timeout Function 8-70 BACnet Device

8-05 End-of-Timeout Function 8-72 MS/TP Max Masters

6-31 Terminal X30/11 High Volt-

age

6-34 Term. X30/11 Low Ref./

Feedb. Value

8-07 Diagnosis Trigger 8-74 "I-Am" Service 9-52 Fault Situation Counter 10-10 Process Data Type Selec-

8-06 Reset Control Timeout 8-73 MS/TP Max Info

6-36 Term. X30/11 Filter Time

6-35 Term. X30/11 High Ref./

Feedb. Value

6-4* Analog Input X30/12 8-1* Control Settings 8-8* FC Port Diagnostics 9-63 Actual Baud Rate 10-12 Process Data Con!g Read

Constant

6-37 Term. X30/11 Live Zero 8-08 Readout Filtering 8-75 Initialization Password 9-53 Profibus Warning Word 10-11 Process Data Con!g Write

8-10 Control Profile 8-80 Bus Message Count 9-64 Device Identification 10-13 Warning Parameter

8-13 Configurable Status Word

STW

8-3* FC Port Settings 8-82 Slave Messages Rcvd 9-67 Control Word 1 10-15 Net Control

8-30 Protocol 8-83 Slave Error Count 9-68 Status Word 1

8-31 Address 8-84 Slave Messages Sent 9-70 Programming Set-up 10-20 COS Filter 1

6-40 Terminal X30/12 Low Volt-

age

6-41 Terminal X30/12 High Volt-

age

6-44 Term. X30/12 Low Ref./

Feedb. Value

6-45 Term. X30/12 High Ref./

Feedb. Value

6-46 Term. X30/12 Filter Time

Constant

Taco® SKV

10-3* Parameter Access

8-9* Bus Jog / Feedback 9-80 Defined Parameters (1) 10-23 COS Filter 4

11-0* LonWorks ID

15-72 Option in Slot B

Time

9-94 Changed parameters (5)

9-** Profibus 9-91 Changed Parameters (2) 10-34 DeviceNet Product Code

tion

15-3* Alarm Log 15-73 Slot B Option SW Version

tion

sion

15-33 Alarm Log: Date and Time 15-77 Slot C1 Option SW Ver-

15-4* Drive Identification 15-9* Parameter Info

15-40 FC Type 15-92 Defined Parameters

perature

14-6* Auto Derate 15-32 Alarm Log: Time 15-76 Option in Slot C1

Overload

Current

16-** Data Readouts

16-0* General Status

16-00 Control Word

Drive Ordering No

15-** Drive Information 15-41 Power Section 15-93 Modi!ed Parameters

15-0* Operating Data 15-42 Voltage 15-98 Drive Identification

8-35 Minimum Response Delay 8-90 Bus Jog 1 Speed 9-81 Defined Parameters (2)

8-36 Maximum Response Delay 8-91 Bus Jog 2 Speed 9-82 Defined Parameters (3) 10-30 Array Index

8-4* FC MC protocol set 8-95 Bus Feedback 2 9-84 Defined Parameters (5) 10-32 Devicenet Revision

8-37 Maximum Inter-Char Delay 8-94 Bus Feedback 1 9-83 Defined Parameters (4) 10-31 Store Data Values

13.0.6 Main Menu Structure - page 4

6-51 Terminal 42 Output Min

6-47 Term. X30/12 Live Zero 8-32 Baud Rate 8-85 Slave Timeout Errors 9-71 Profibus Save Data Values 10-21 COS Filter 2

6-5* Analog Output 42 8-33 Parity / Stop Bits 8-89 Diagnostics Count 9-72 ProfibusDriveReset 10-22 COS Filter 3

Scale

6-50 Terminal 42 Output 8-34 Estimated cycle time

6-52 Terminal 42 Output Max

Scale

6-53 Terminal 42 Output Bus

Control

6-54 Terminal 42 Output Time-

8-5* Digital/Bus 9-07 Actual Value 9-93 Changed Parameters (4) 11-** LonWorks

8-50 Coasting Select 9-15 PCD Write Configura-

6-61 Terminal X30/8 Min. Scale 8-43 PCD read configuration 9-00 Setpoint 9-92 Changed Parameters (3) 10-39 Devicenet F Parameters

6-6* Analog Output X30/8 8-40 Telegram selection 8-96 Bus Feedback 3 9-90 Changed Parameters (1) 10-33 Store Always

out Preset

6-62 Terminal X30/8 Max. Scale

6-60 Terminal X30/8 Output 8-42 PCD write configuration

6-63 Terminal X30/8 Output Bus

Control

14-** Special Functions 14-50 RFI Filter 15-23 Historic Log: Date and

11-10 Drive Profile 14-00 Switching Pattern 14-52 Fan Control 15-30 Alarm Log: Error Code 15-74 Option in Slot C0

11-1* LON Functions 14-0* Inverter Switching 14-51 DC Link Compensa-

11-00 Neuron ID

11-15 LON Warning Word 14-01 Switching Frequency 14-53 Fan Monitor 15-31 Alarm Log: Value 15-75 Slot C0 Option SW Ver-

11-18 LonWorks Revision 14-04 PWM Random 14-60 Function at Overtem-

11-17 XIF Revision 14-03 Overmodulation

ance

Fault

11-2* LON Param. Access 14-1* Mains On/Off 14-61 Function at Inverter

13-** Smart Logic 14-11 Mains Voltage at Mains

11-21 Store Data Values 14-10 Mains Failure 14-62 Inv. Overload Derate

13-0* SLC Settings 14-12 Function at Mains Imbal-

14-2* Reset Functions 15-00 Operating Hours 15-43 Software Version 15-99 Parameter Metadata

13-00 SL Controller Mode

13-02 Stop Event 14-21 Automatic Restart Time 15-02 kWh Counter 15-45 Actual Typecode String

13-03 Reset SLC 14-22 Operation Mode 15-03 Power-ups 15-46 Adjustable Frequency

13-01 Start Event 14-20 Reset Mode 15-01 Running Hours 15-44 Ordered Typecode String

55 302-365, Effective: June 5, 2017

Taco® SKV

16-1* Motor Status

16-09 Custom Readout

15-50 SW ID Power Card 16-05 Main Actual Value [%]

15-06 Reset kWh Counter 15-49 SW ID Control Card 16-03 Status Word

Serial Number

Counter

ber

15-10 Logging Source 15-55 Vendor URL 16-10 Power [kW]

15-11 Logging Interval 15-56 Vendor Name 16-11 Power [hp]

15-6* Option Ident 16-12 Motor Voltage

15-12 Trigger Event

15-61 Option SW Version 16-14 Motor Current

ger

15-2* Historic Log 15-62 Option Ordering No 16-15 Frequency [%]

20-84 On Reference Bandwidth

Feedb.

15-20 Historic Log: Event 15-63 Option Serial No 16-16 Torque [Nm]

18-1* Fire Mode Log 20-14 Maximum Reference/

20-2* Feedback/Setpoint 20-9* PID Controller

20-21 Setpoint 1 20-93 PID Proportional Gain

and Time

20-3* Feedb. Adv. Conv. 20-96 PID Diff. Gain Limit

18-3* Inputs & Outputs 20-22 Setpoint 2 20-94 PID Integral Time

21-** Ext. Closed-loop

21-0* Ext. CL Autotuning

21-00 Closed-loop Type

Fault

14-3* Current Limit Ctrl. 15-1* Data Log Settings 15-53 Power Card Serial Num-

tional Gain

13.0.7 Main Menu Structure - page 5

13-1* Comparators 14-23 Typecode Setting 15-04 Overtemps 15-47 Power Card Ordering No 16-01 Reference [Unit]

13-10 Comparator Operand 14-25 Trip Delay at Torque Limit 15-05 Overvolts 15-48 LCP Id No 16-02 Reference [%]

13-11 Comparator Operator 14-26 Trip Delay at Inverter

13-12 Comparator Value 14-28 Production Settings 15-07 Reset Running Hours

13-2* Timers 14-29 Service Code 15-08 Number of Starts 15-51 Adj. Frequency Drive

56 302-365, Effective: June 5, 2017

13-4* Logic Rules 14-30 Current Lim Ctrl, Propor-

13-20 SL Controller Timer

tion Time

13-40 Logic Rule Boolean 1 14-31 Current Lim Ctrl, Integra-

14-4* Energy Optimizing 15-13 Logging Mode 15-60 Option Mounted 16-13 Frequency

Time

13-41 Logic Rule Operator 1 14-32 Current Lim Ctrl, Filter

13-43 Logic Rule Operator 2 14-40 VT Level 15-14 Samples Before Trig-

13-42 Logic Rule Boolean 2

zation

13-44 Logic Rule Boolean 3 14-41 AEO Minimum Magneti-

13-5* States 14-42 Minimum AEO Fre-

14-5* Environment 15-22 Historic Log: Time 15-71 Slot A Option SW Version 16-18 Motor Thermal

quency

13-51 SL Controller Event 14-43 Motor Cosphi 15-21 Historic Log: Value 15-70 Option in Slot A 16-17 Speed [RPM]

13-52 SL Controller Action

16-22 Torque [%] 16-66 Digital Output [bin]

16-26 Power Filtered [kW] 16-67 Pulse Input #29 [Hz] 18-10 Fire Mode Log: Event

16-3* Drive Status 16-69 Pulse Output #27 [Hz] 18-12 Fire Mode Log: Date

16-27 Power Filtered [hp] 16-68 Pulse Input #33 [Hz] 18-11 Fire Mode Log: Time 20-20 Feedback Function 20-91 PID Anti Windup

16-30 DC Link Voltage 16-70 Pulse Output #29 [Hz]

16-34 Heatsink Temp. 16-73 Counter B 18-32 Analog Input X42/5 20-30 Refrigerant

16-32 Brake Energy /s 16-71 Relay Output [bin] 18-30 Analog Input X42/1 20-23 Setpoint 3 20-95 PID Differentiation Time

16-33 Brake Energy /2 min 16-72 Counter A 18-31 Analog Input X42/3

16-36 Inv. Nom. Current 16-75 Analog In X30/11 18-33 Analog Out X42/7 [V] 20-31 User Defined Refrigerant

16-37 Inv. Max. Current 16-76 Analog In X30/12 18-34 Analog Out X42/9 [V] 20-32 User-defined Refrigerant

Taco® SKV

21-01 PID Performance

20-34 Duct 1 Area [m2] 21-02 PID Output Change

[mA]

ence

20-71 PID Performance 21-15 Ext. 1 Setpoint

20-6* Sensorless 21-10 Ext. 1 Ref./Feedback Unit

20-0* Feedback 20-69 Sensorless Information 21-12 Ext. 1 Maximum Refer-

[unit]

20-70 Closed-loop Type 21-14 Ext. 1 Feedback Source

20-7* PID Autotuning 21-13 Ext. 1 Reference Source

Unit

sion

21-21 Ext. 1 Proportional Gain

Control

21-2* Ext. CL 1 PID

20-81 PID Normal/ Inverse Con-

sion

trol

Unit

20-73 Minimum Feedback Level 21-18 Ext. 1 Feedback [Unit]

20-74 Maximum Feedback Level 21-19 Ext. 1 Output [%]

sion

20-8* PID Basic Settings 21-20 Ext. 1 Normal/Inverse

Unit

23-60 Trend Variable

23-61 Continuous Bin Data

20-83 PID Start Speed [Hz] 21-23 Ext. 1 Differentation Time

20-82 PID Start Speed [RPM] 21-22 Ext. 1 Integral Time

20-13 Minimum Reference/

Unit

[Hz]

Speed

Feedb.

22-4* Sleep Mode 22-86 Speed at Design Point

22-89 Flow at Design Point 23-63 Timed Period Start

[RPM]

16-8* Fieldbus & FC Port 18-36 Analog Input X48/2

13.0.8 Main Menu Structure - page 6

16-40 Logging Buffer Full 16-80 Fieldbus CTW 1 18-37 Temp. Input X48/4 20-35 Duct 1 Area [in2] 21-03 Minimum Feedback Level

16-43 Timed Actions Status 16-82 Fieldbus REF 1 18-38 Temp. Input X48/7 20-36 Duct 2 Area [m2] 21-04 Maximum Feedback Level

16-49 Current Fault Source 16-84 Comm. Option STW 18-39 Temp. Input X48/10 20-37 Duct 2 Area [in2] 21-09 PID Autotuning

16-38 SL Controller State 16-77 Analog Out X30/8 [mA] 18-35 Analog Out X42/11 [V] 20-33 User-defined Refrigerant

16-39 Control Card Temp.

16-50 External Reference 16-86 FC Port REF 1 18-50 Sensorless Readout

16-5* Ref. & Feedb. 16-85 FC Port CTW 1 18-5* Ref. & Feedb. 20-38 Air Density Factor [%] 21-1* Ext. CL 1 Ref./Fb.

16-9* Diagnosis Readouts 20-** Drive Closed-loop 20-60 Sensorless Unit 21-11 Ext. 1 Minimum Reference

16-53 Digi Pot Reference 16-90 Alarm Word

16-52 Feedback [Unit]

16-54 Feedback 1 [Unit] 2 16-91 Alarm Word 20-00 Feedback 1 Source

16-56 Feedback 3 [Unit] 16-93 Warning Word 2 20-02 Feedback 1 Source

16-55 Feedback 2 [Unit] 16-92 Warning Word 20-01 Feedback 1 Conver-

18-** Info & Readouts 20-05 Feedback 2 Source

16-58 PID Output [%] 16-94 Ext. Status Word 20-03 Feedback 2 Source 20-72 PID Output Change 21-17 Ext. 1 Reference [Unit]

16-60 Digital Input

16-6* Inputs & Outputs 16-96 Maintenance Word 20-04 Feedback 2 Conver-

16-61 Terminal 53 Switch Setting 18-0* Maintenance Log 20-06 Feedback 3 Source 20-79 PID Autotuning

16-63 Terminal 54 Switch Setting 18-01 Maintenance Log: Action 20-08 Feedback 3 Source

16-62 Analog Input 53 18-00 Maintenance Log: Item 20-07 Feedback 3 Conver-

Control

and Time

21-24 Ext. 1 Dif. Gain Limit 21-60 Ext. 3 Normal/Inverse

16-65 Analog Output 42 [mA] 18-03 Maintenance Log: Date

16-64 Analog Input 54 18-02 Maintenance Log: Time 20-12 Reference/Feedback

21-3* Ext. CL 2 Ref./Fb. 21-61 Ext. 3 Proportional Gain 22-40 Minimum Run Time 22-87 Pressure at No-Flow

21-30 Ext. 2 Ref./Feedback Unit 21-62 Ext. 3 Integral Time 22-41 Minimum Sleep Time 22-88 Pressure at Rated Speed 23-62 Timed Bin Data

21-31 Ext. 2 Minimum Reference 21-63 Ext. 3 Differentation Time 22-42 Wake-up Speed

Taco® SKV

23-** Time-based Functions 23-65 Minimum Bin Value

23-0* Timed Actions 23-66 Reset Continuous Bin Data

22-46 Maximum Boost Time 23-00 ON Time 23-67 Reset Timed Bin Data

ference

22-5* End of Curve 23-01 ON Action 23-8* Payback Counter

22-51 End of Curve Delay 23-03 OFF Action 23-81 Energy Cost

24-03 Fire Mode Min Reference

23-1* Maintenance 24-** Appl. Functions 2

23-10 Maintenance Item 24-0* Fire Mode

22-7* Short Cycle Protec-

tion

22-76 Interval between Starts 23-12 Maintenance Time Base 24-01 Fire Mode Configuration

23-14 Maintenance Date and

22-78 Minimum Run Time

Source

ence

Time

23-15 Reset Maintenance Word 24-04 Fire Mode Max Reference

Override

Override Value

23-5* Energy Log 24-06 Fire Mode Reference

22-8* Flow Compensation 23-16 Maintenance Text 24-05 Fire Mode Preset Refer-

Source

23-50 Energy Log Resolution 24-07 Fire Mode Feedback

Approximation

24-1* Drive Bypass

23-53 Energy Log

[RPM]

23-6* Trending 24-11 Drive Bypass Delay Time

22-85 Speed at Design Point

22-84 Speed at No-Flow [Hz] 23-54 Reset Energy Log 24-10 Drive Bypass Function

trol

[RPM]

22-** Appl. Functions 22-44 Wake-up Ref./FB Dif-

Delay

22-2* No-Flow Detection 22-50 End of Curve Function 23-02 OFF Time 23-80 Power Reference Factor

22-22 Low Speed Detection 22-60 Broken Belt Function 23-08 Timed Actions Mode 23-83 Energy Savings

13.0.9 Main Menu Structure - page 7

21-35 Ext. 2 Setpoint 22-00 External Interlock

21-37 Ext. 2 Reference [Unit] 22-01 Power Filter Time

21-32 Ext. 2 Maximum Reference 21-64 Ext. 3 Dif. Gain Limit 22-43 Wake-up Speed [Hz] 22-90 Flow at Rated Speed 23-64 Timed Period Stop

21-33 Ext. 2 Reference Source

21-34 Ext. 2 Feedback Source 22-0* Miscellaneous 22-45 Setpoint Boost

58 302-365, Effective: June 5, 2017

21-39 Ext. 2 Output [%] 22-20 Low Power Auto Set-

21-38 Ext. 2 Feedback [Unit]

21-40 Ext. 2 Normal/Inverse Con-

21-4* Ext. CL 2 PID 22-21 Low Power Detection 22-6* Broken Belt Detection 23-04 Occurrence 23-82 Investment

trol

21-41 Ext. 2 Proportional Gain 22-23 No-Flow Function 22-61 Broken Belt Torque 23-09 Timed Actions Reactivation 23-84 Cost Savings

21-42 Ext. 2 Integral Time 22-24 No-Flow Delay 22-62 Broken Belt Delay

21-43 Ext. 2 Differentation Time 22-26 Dry Pump Function

21-44 Ext. 2 Dif. Gain Limit 22-27 Dry Pump Delay 22-75 Short Cycle Protection 23-11 Maintenance Action 24-00 Fire Mode Function

ing

21-5* Ext. CL 3 Ref./Fb. 22-3* No-Flow Power Tun-

tor

21-50 Ext. 3 Ref./Feedback Unit 22-30 No-Flow Power 22-77 Minimum Run Time 23-13 Maintenance Time Interval 24-02 Fire Mode Unit

21-51 Ext. 3 Minimum Reference 22-31 Power Correction Fac-

21-52 Ext. 3 Maximum Reference 22-32 Low Speed [RPM] 22-79 Minimum Run Time

21-53 Ext. 3 Reference Source 22-33 Low Speed [Hz]

[kW]

21-55 Ext. 3 Setpoint 22-35 Low Speed Power [HP] 22-81 Square-linear Curve

21-54 Ext. 3 Feedback Source 22-34 Low Speed Power [kW] 22-80 Flow Compensation

21-57 Ext. 3 Reference [Unit] 22-36 High Speed [RPM] 22-82 Work Point Calculation 23-51 Period Start 24-09 Fire Mode Alarm Handling

21-59 Ext. 3 Output [%] 22-38 High Speed Power

21-58 Ext. 3 Feedback [Unit] 22-37 High Speed [Hz] 22-83 Speed at No-Flow

[HP]

21-6* Ext. CL 3 PID 22-39 High Speed Power

24-9* Multi-Motor Funct. 25-25 OBW Time 25-59 Run-on Line Delay 26-2* Analog Input X42/3 26-53 Terminal X42/9 Bus Con-

Taco® SKV

26-6* Analog Out X42/11

26-60 Terminal X42/11 Output

26-61 Terminal X42/11 Min. Scale

26-62 Terminal X42/11 Max.

26-54 Terminal X42/9 Timeout

Preset

age

Feedb. Value

age

Scale

Feedb. Value

Constant

trol

31-** Bypass Option

Preset

26-3* Analog Input X42/5 26-64 Terminal X42/11 Timeout

31-00 Bypass Mode

age

31-02 Bypass Trip Time Delay

31-01 Bypass Start Time Delay

Feedb. Value

31-03 Test Mode Activation

Feedb. Value

Constant

25-9* Service 26-31 Terminal X42/5 High Volt-

35-** Sensor Input Option

35-00 Term. X48/4 Temp. Unit

24-4* Analog Out X42/7 31-11 Bypass Running Hours

26-0* Analog I/O Mode 26-37 Term. X42/5 Live Zero 31-10 Bypass Status Word

26-43 Terminal X42/7 Bus Con-

trol

26-1* Analog Input X42/1 26-42 Terminal X42/7 Max. Scale 35-0* Temp. Input Mode

26-10 Terminal X42/1 Low

Voltage

35-01 Term. X48/4 Input Type

26-5* Analog Out X42/9 35-02 Term. X48/7 Temp. Unit

26-44 Terminal X42/7 Timeout

Preset

Voltage

26-50 Terminal X42/9 Output 35-03 Term. X48/7 Input Type

26-51 Terminal X42/9 Min. Scale 35-04 Term. X48/10 Temp. Unit

26-15 Term. X42/1 High Ref./

Feedb. Value

26-16 Term. X42/1 Filter Time

26-14 Term. X42/1 Low Ref./

Feedb. Value

Constant

25-4* Staging Settings 25-84 Pump ON Time 26-27 Term. X42/3 Live Zero 26-63 Terminal X42/11 Bus Con-

13.0.10 Main Menu Structure - page 8

24-90 Missing Motor Function 25-26 Destage At No-Flow 25-8* Status 26-20 Terminal X42/3 Low Volt-

24-92 Missing Motor Coeffcient 2 25-28 Stage Function Time 25-81 Pump Status 26-24 Term. X42/3 Low Ref./

24-93 Missing Motor Coeffcient 3 25-29 Destage Function 25-82 Lead Pump 26-25 Term. X42/3 High Ref./

24-94 Missing Motor Coeffcient 4 25-30 Destage Function Time 25-83 Relay Status 26-26 Term. X42/3 Filter Time

24-91 Missing Motor Coeffcient 1 25-27 Stage Function 25-80 Cascade Status 26-21 Terminal X42/3 High Volt-

24-95 Locked Rotor Function

24-98 Locked Rotor Coeffcient 3 25-42 Staging Threshold

24-97 Locked Rotor Coeffcient 2 25-41 Ramp-up Delay 25-86 Reset Relay Counters 26-30 Terminal X42/5 Low Volt-

24-96 Locked Rotor Coeffcient 1 25-40 Ramp-down Delay 25-85 Relay ON Time

25-** Cascade Controller 25-44 Staging Speed [RPM] 25-91 Manual Alternation 26-35 Term. X42/5 High Ref./

24-99 Locked Rotor Coeffcient 4 25-43 Destaging Threshold 25-90 Pump Interlock 26-34 Term. X42/5 Low Ref./

25-5* Alternation Settings 26-01 Terminal X42/3 Mode 26-40 Terminal X42/7 Output 13-19 Remote Bypass Activation

[RPM]

25-0* System Settings 25-45 Staging Speed [Hz] 26-** Analog I/O Option 26-36 Term. X42/5 Filter Time

25-00 Cascade Controller 25-46 De-staging Speed

25-05 Fixed Lead Pump 25-50 Lead Pump Alternation 26-02 Terminal X42/5 Mode 26-41 Terminal X42/7 Min. Scale

25-04 Pump Cycling

25-02 Motor Start 25-47 Destaging Speed [Hz] 26-00 Terminal X42/1 Mode

val

25-2* Bandwidth Settings 25-52 Alternation Time Inter-

25-06 Number of Pumps 25-51 Alternation Event

50%

Time

25-20 Staging Bandwidth 25-53 Alternation Timer Value 26-11 Terminal X42/1 High

25-22 Fixed Speed Bandwidth 25-55 Alternate if Load <

25-21 Override Bandwidth 25-54 Alternation Prede!ned

nation

25-23 SBW Staging Delay 25-56 Staging Mode at Alter-

25-24 SBW De-staging Delay 25-58 Run Next Pump Delay 26-17 Term. X42/1 Live Zero 26-52 Terminal X42/9 Max. Scale 35-05 Term. X48/10 Input Type

Taco® SKV

35-45 Term. X48/2 High Ref./

35-37 Term. X48/10 High Temp.

35-27 Term. X48/7 High

Constant

Feedb. Value

Limit

Temp. Limit

35-42 Term. X48/2 Low Current 35-47 Term. X48/2 Live Zero

35-34 Term. X48/10 Filter

35-43 Term. X48/2 High Current

35-44 Term. X48/2 Low Ref./

Feedb. Value

Time Constant

35-35 Term. X48/10 Temp.

Monitor

35-36 Term. X48/10 Low

Temp. Limit

35-17 Term. X48/4 High

Temp. Limit

35-06 Temperature Sensor Alarm

Function

60 302-365, Effective: June 5, 2017

35-24 Term. X48/7 Filter

Time Constant

Monitor

35-26 Term. X48/7 Low

Temp. Limit

35-1* Temp. Input X48/4 35-2* Temp. Input X48/7 35-3* Temp. Input X48/10 35-4* Analog Input X48/2 35-46 Term. X48/2 Filter Time

35-14 Term. X48/4 Filter Time

Constant

35-15 Term. X48/4 Temp. Monitor 35-25 Term. X48/7 Temp.

35-16 Term. X48/4 Low Temp.

Limit

Taco® SKV

14 WARNINGS AND ALARMS

14.0.1 System Monitoring

The adjustable frequency drive monitors the condition of its input power, output, and motor factors as well as other system performance indicators. A warning or alarm may not necessarily indicate a problem internal to the adjustable frequency drive itself. In many cases it indicates failure conditions from input voltage, motor load or temperature, external signals, or other areas monitored by the adjustable frequency drive’s internal logic. Be sure to investigate those areas exterior to the adjustable frequency drive as indicated in the alarm or warning.

14.0.2 Warning and Alarm Types

Warnings

A warning is issued when an alarm condition is impending or when an abnormal operating condition is present and may result in the adjustable frequency drive issuing an alarm. A warning clears by itself when the abnormal condition is removed.

Alarms

Trip

An alarm is issued when the adjustable frequency drive is tripped, that is, the adjustable frequency drive suspends operation to prevent adjustable frequency drive or system damage. The motor will coast to a stop. The adjustable frequency drive logic will continue to operate and monitor the adjustable frequency drive status. After the fault condition is remedied, the adjustable frequency drive can be reset. It will then be ready to start operation again.

A trip can be reset in any of 4 ways:

• Press [RESET] on the LCP

• Digital reset input command

• Serial communication reset input command

• Auto reset

Trip Lock

An alarm that causes the adjustable frequency drive to trip lock requires that input power is cycled. The motor will coast to a stop. The adjustable frequency drive logic will continue to operate and monitor the adjustable frequency drive status. Remove input power to the adjustable frequency drive and correct the cause of the fault, then restore power. This action puts the adjustable frequency drive into a trip condition as described above and may be reset in any of those four ways.

14.0.3 Warning and Alarm Displays

An alarm or trip lock alarm will flash on display along with the alarm number.

In addition to the text and alarm code on the adjustable frequency drive display, the status indicator lights operate.

Warn. LED Alarm LED

Warning ON OFF Alarm OFF ON (Flashing) Trip Lock ON ON (Flashing)

14.0.4 Warning and Alarm Definitions

The table below defines whether a warning is issued prior to an alarm, and whether the alarm trips the unit or trip locks the unit.

Taco® SKV

Table 9: Alarm/Warning Code List

No. Description Warning Alarm/Trip Alarm/Trip Lock

Parameter Reference

1 10 Volts low X 2 Live zero error (X) (X) 6-01 4 Mains phase loss (X) (X) (X) 14-12 5 DC link voltage high X 6 DC link voltage low X 7 DC overvoltage X X 8 DC undervoltage X X 9 Inverter overloaded X X 10 Motor ETR overtemperature (X) (X) 1-90 11 Thrmstr overld (X) (X) 1-90 12 Torque limit X X 13 Overcurrent X X X 14 Ground fault X X X 15 Hardware mismatch X X 16 Short Circuit X X 17 Control word timeout (X) (X) 8-04 23 Internal Fan Fault X 24 External Fan Fault X 14-53 25 Brake resistor short-circuited X 26 Brake resistor power limit (X) (X) 2-13 27 Brake chopper short-circuited X X 28 Brake check (X) (X) 2-15 29 Drive overtemperature X X X 30 Motor phase U missing (X) (X) (X) 4-58 31 Motor phase V missing (X) (X) (X) 4-58 32 Motor phase W missing (X) (X) (X) 4-58 33 Inrush fault X X 34 Fieldbus communication fault X X 35 Out of frequency range X X 36 Mains failure X X 37 Phase Imbalance X X 38 Internal fault X X 39 Heatsink sensor X X 40 Overload of Digital Output Terminal

(X) 5-00, 5-01

41 Overload of Digital Output Terminal

(X) 5-00, 5-02

29 42 Overload of Digital Output On X30/6 (X) 5-32 42 Overload of Digital Output On X30/7 (X) 5-33 46 Pwr. card supply X X 47 24 V supply low X X X 48 1.8 V supply low X X 49 Speed limit X (X) 1-86 50 AMA calibration failed X 51 AMA check Unom and Inom X 52 AMA low Inom X 53 AMA motor too big X

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Taco® SKV

No. Description

Warning Alarm/

Trip

Alarm/Trip Lock

Parameter Reference

54 AMA motor too small X 55 AMA Parameter out of range X 56 AMA interrupted by user X 57 AMA timeout X

58 AMA internal fault X X 59 Current limit X 60 External Interlock X 62 Output Frequency at Maximum

Limit 64 Voltage Limit X 65 Control Board Overtemperature X X X 66 Heatsink Temperature Low X 67 Option Configuration has Changed X 69 Pwr. Card Temp X X 70 Illegal FC configuration X 71 PTC 1 Safe Stop X

72 Dangerous Failure

X 73 Safe Stop Auto Restart 76 Power Unit Set-up X 79 Illegal PS config X X 80 Drive Initialized to Default Value X 91 Analog input 54 wrong settings X 92 No-Flow X X 22-2*

93 Dry Pump X X 22-2* 94 End of Curve X X 22-5* 95 Broken Belt X X 22-6* 96 Start Delayed X 22-7* 97 Stop Delayed X 22-7* 98 Clock Fault X 0-7* 201 Fire M was Active 202 Fire M Limits Exceeded 203 Missing Motor 204 Locked Rotor 243 Brake IGBT X X 244 Heatsink temp X X X 245 Heatsink sensor X X 246 Pwr.card supply X X 247 Pwr.card temp X X 248 Illegal PS config X X 250 New spare parts X 251 New Type Code X X

(X) Dependent on parameter

Cannot be Auto reset via 14-20 Reset Mode

Taco® SKV

14.0.5 Fault Messages

The warning/alarm information below defines the warning/alarm condition, provides the probable cause for the condition, and details a remedy or troubleshooting procedure.

WARNING 1, 10 volts low

The control card voltage is below 10 V from terminal 50. Remove some of the load from terminal 50, as the 10 V supply is overloaded. Max. 15 mA or minimum 590 Ohms. This condition can be caused by a short in a connected potentiometer or improper wiring of the potentiometer.

Troubleshooting

Remove the wiring from terminal 50. If the warning clears, the problem is with the customer wiring. If the warning does not clear, replace the control card.

WARNING/ALARM 2, Live zero error

This warning or alarm will only appear if programmed by the user in 6-01 Live Zero Timeout Function. The signal on one of the analog inputs is less than 50% of the minimum value programmed for that input. This condition can be caused by broken wiring or faulty device sending the signal.

Troubleshooting

Check connections on all the analog input terminals. Control card terminals 53 and 54 for signals, terminal 55 common. MCB 101 terminals 11 and 12 for signals, terminal 10 common. MCB 109 terminals 1, 3, 5 for signals, terminals 2, 4, 6 common).

Check that the adjustable frequency drive programming and switch settings match the analog signal type.

Perform Input Terminal Signal Test.

WARNING/ALARM 4, Mains phase loss

A phase is missing on the supply side, or the line voltage imbalance is too high. This message also appears for a fault in the input recti!er on the adjustable frequency drive. Options are programmed at 14-12 Function at Mains Imbalance.

Troubleshooting

Check the supply voltage and supply currents to the adjustable frequency drive.

WARNING 5, DC link voltage high

The intermediate circuit voltage (DC) is higher than the high voltage warning limit. The limit is dependent on the adjustable frequency drive voltage rating. The adjustable frequency drive is still active.

WARNING 6, DC link voltage low

The intermediate circuit voltage (DC) is lower than the low voltage warning limit. The limit is dependent on the adjustable frequency drive voltage rating. The adjustable frequency drive is still active.

WARNING/ALARM 7, DC overvoltage

If the intermediate circuit voltage exceeds the limit, the adjustable frequency drive trips after a time.

Troubleshooting

Connect a brake resistor

Extend the ramp time

Change the ramp type

Activate functions in 2-10 Brake Function

Increase 14-26 Trip Delay at Inverter Fault

WARNING/ALARM 8, DC undervoltage

If the intermediate circuit voltage (DC) drops below the undervoltage limit, the adjustable frequency drive checks if a 24 VDC backup supply is connected. If no 24 VDC backup supply is connected, the adjustable frequency drive trips after a !xed time delay. The time delay varies with unit size.

Troubleshooting

Check that the supply voltage matches the

adjustable frequency drive voltage.

Perform Input voltage test

Perform soft charge and recti!er circuit test

WARNING/ALARM 9, Inverter overload

The adjustable frequency drive is about to cut out because of an overload (current too high for too long). The counter for electronic, thermal inverter protection gives a warning at 98% and trips at 100%, while giving an alarm. The adjustable frequency drive cannot be reset until the counter is below 90%.

The fault is that the adjustable frequency drive has been overloaded by more than 100% for too long.

Troubleshooting

Compare the output current shown on the LCP with the adjustable frequency drive rated current.

Compare the output current shown on the LCP with measured motor current.

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Taco® SKV

Display the Thermal Drive Load on the LCP and monitor the value. When running above the adjustable frequency drive continuous current rating, the counter should increase. When running below the adjustable frequency drive continuous current rating, the counter should decrease.

See the derating section in the Design Guide for more details if a high switching frequency is required.

WARNING/ALARM 10, Motor Overload Temperature

According to the electronic thermal protection (ETR), the motor is too hot. Select whether the adjustable frequency drive gives a warning or an alarm when the counter reaches 100% in 1-90 Motor Thermal Protection. The fault occurs when the motor is overloaded by more than 100% for too long.

Troubleshooting

• Check for motor overheating.

• Check if the motor is mechanically overloaded.

• Check that the motor current set in 1-24 Motor Cur- rent is correct.

• Ensure that Motor data in parameters 1-20 through 1-25 are set correctly.

• If an external fan is in use, check in 1-91 Motor Exter- nal Fan that it is selected.

• Running AMA in 1-29 Automatic Motor Adaptation (AMA) may tune the adjustable frequency drive to the motor more accurately and reduce thermal loading.

WARNING/ALARM 11, Thermistor overload

The thermistor might be disconnected. Select whether the adjustable frequency drive gives a warning or an alarm in 1-90 Motor Thermal Protection.

Troubleshooting

• Check for motor overheating.

• Check if the motor is mechanically overloaded.

• When using terminal 53 or 54, check that the thermistor is connected correctly between either terminal 53 or 54 (analog voltage input) and terminal 50 (+10 V supply) and that the terminal switch for 53 or 54 is set for voltage. Check 1-93 Thermistor Source selects terminal 53 or 54.

• When using digital inputs 18 or 19, check that the thermistor is connected correctly between either terminal 18 or 19 (digital input PNP only) and terminal

50. Check 1-93 Thermistor Source selects terminal 18 or 19.

WARNING/ALARM 12, Torque limit

The torque has exceeded the value in 4-16 Torque Limit Motor Mode or the value in 4-17 Torque Limit Generator Mode. 14-25 Trip Delay at Torque Limit can change this from a warning only condition to a warning followed by an alarm.

Troubleshooting

• If the motor torque limit is exceeded during ramp-up, extend the ramp-up time.

• If the generator torque limit is exceeded during rampdown, extend the ramp-down time.

• If torque limit occurs while running, possibly increase the torque limit. Be sure the system can operate safely at a higher torque.

• Check the application for excessive current draw on the motor.

WARNING/ALARM 13, Overcurrent

The inverter peak current limit (approx. 200% of the rated current) is exceeded. The warning lasts about 1.5 sec. Then the adjustable frequency drive trips and issues an alarm. This fault may be caused by shock loading or fast acceleration with high inertia loads. If extended mechan ical brake control is selected, trip can be reset externally.

Troubleshooting

• Remove power and check if the motor shaft can be turned.

• Make sure that the motor size matches the adjustable frequency drive.

• Check parameters 1-20 through 1-25 for correct motor data.

WARNING/ALARM 14, Ground Fault

There is current from the output phases to ground, either in the cable between the adjustable frequency drive and the motor or in the motor itself.

Troubleshooting

• Remove power to the adjustable frequency drive and repair the ground fault.

• Check for ground faults in the motor by measuring the resistance to ground of the motor leads and the motor with a megohmmeter.

WARNING/ALARM 15, Hardware Mismatch

A fitted option is not operational with the present control board hardware or software.

Record the value of the following parameters and contact your Danfoss supplier:

15-40 FC Type

15-41 Power Section

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Taco® SKV

15-42 Voltage

15-43 Software Version

15-45 Actual Typecode String

15-49 SW ID Control Card

15-50 SW ID Power Card

15-60 Option Mounted

15-61 Option SW Version

WARNING/ALARM 16, Short Circuit

There is a short circuit in the motor or motor wiring. Remove power to the adjustable frequency drive and repair the short circuit.

WARNING/ALARM 17, Control Word Timeout

There is no communication to the adjustable frequency drive.

The warning will only be active when 8-04 Control Timeout Function is NOT set to [0] OFF.

If 8-04 Control Timeout Function is set to Stop and Trip, a warning appears and the adjustable frequency drive ramps down until it stops then displays an alarm.

Troubleshooting

• Check connections on the serial communication cable.

• Increase 8-03 Control Timeout Time.

• Check the operation of the communication equipment.

• Verify proper installation based on EMC requirements.

WARNING/ALARM 23, Internal Fan Fault

The fan warning function checks if the fan is running. The fan warning can be disabled in 14-53 Fan Monitor.

Troubleshooting

• Check for proper fan operation.

• Cycle power to the adjustable frequency drive and check that the fan operates briefly at startup.

• Check the sensors on the heatsink and control card.

WARNING/ALARM 24, External Fan Fault

The fan warning function checks if the fan is running. The fan warning can be disabled in 14-53 Fan Monitor.

Troubleshooting

• Check for proper fan operation.

• Cycle power to the adjustable frequency drive and check that the fan operates briefly at startup.

• Check the sensors on the heatsink and control card.

WARNING/ALARM 25, Brake Resistor Short Circuit

The brake resistor is monitored during operation. If a short circuit occurs, the brake function is disabled and the warning appears. The adjustable frequency drive is still operational but without the brake function. Remove power to the adjustable frequency drive and replace the brake resistor (see 2-15 Brake Check).

WARNING/ALARM 26, Brake Resistor Power Limit

The power transmitted to the brake resistor is calculated as a mean value over the last 120 seconds of run time. The calculation is based on the intermediate circuit voltage and the brake resistance value set in 2-16 AC Brake Max. Current. The warning is active when the dissipated braking is higher than 90% of the brake resistance power. If Trip [2] is selected in 2-13 Brake Power Monitoring, the adjustable frequency drive will trip when the dissipated braking energy reaches 100%.

WARNING/ALARM 27, Brake Chopper Fault

The brake transistor is monitored during operation and if a short circuit occurs, the brake function is disabled and a warning is issued. The adjustable frequency drive is still operational but, since the brake transistor has shortcircuited, substantial power is transmitted to the brake resistor, even if it is inactive.

Remove power to the adjustable frequency drive and remove the brake resistor.

WARNING/ALARM 28, Brake Check Failed

The brake resistor is not connected or not working. Check 2-15 Brake Check.

WARNING/ALARM 29, Heatsink Temp

The maximum temperature of the heatsink has been exceeded. The temperature fault will not reset until the temperature falls below the reset heatsink temperature. The trip and reset points are based on the adjustable frequency drive power size.

Troubleshooting

Check for the following conditions.

• Ambient temperature too high.

• Motor cable too long.

• Incorrect airflow clearance above and below the adjustable frequency drive.

• Blocked airflow around the adjustable frequency drive.

• Damaged heatsink fan.

• Dirty heatsink.

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Taco® SKV

WARNING/ALARM 30, Motor phase U missing

Motor phase U between the adjustable frequency drive and the motor is missing.

Remove power from the adjustable frequency drive and check motor phase U.

WARNING/ALARM 31, Motor phase V missing

Motor phase V between the adjustable frequency drive and the motor is missing.

Remove power from the adjustable frequency drive and check motor phase V.

WARNING/ALARM 30, Motor phase W missing

Motor phase W between the adjustable frequency drive and the motor is missing.

Remove power from the adjustable frequency drive and check motor phase W.

WARNING/ALARM 33, Inrush Fault

Too many power-ups have occurred within a short time period. Let the unit cool to operating temperature.

WARNING/ALARM 34, Fieldbus Communication Fault

Communication between the serial communication bus and the communication option card is not operating.

WARNING/ALARM 36, Mains Failure

This warning/alarm is only active if the supply voltage to the adjustable frequency drive is lost and 14-10 Mains Failure is NOT set to [0] No Function. Check the fuses to the adjustable frequency drive and line power supply to the unit.

WARNING/ALARM 36, Internal Fault

When an internal fault occurs, a code number defined in the table below is displayed.

Troubleshooting

• Cycle power to the adjustable frequency drive.

• Check that the option is properly installed.

• Check for loose or missing wiring.

It may be necessary to contact your Danfoss supplier or service department. Note the code number for further troubleshooting directions.

No. Text

0 Serial port cannot be initialized. Contact your

Danfoss supplier or DanfossService Department. 256-258 Power EEPROM data is defect or too old. 512-519 Internal fault. Contact yourDanfoss supplier or

DanfossService Department. 783 Parameter value outside of min/max limits

No. Text

1024-1284 Internal fault. Contact your Danfoss supplier or

the Danfoss Service Department. 1299 Option SW in slot A is too old. 1300 Option SW in slot B is too old. 1302 Option SW in slot C1 is too old. 1315 Option SW in slot A is not supported (not

allowed). 1316 Option SW in slot B is not supported (not

allowed). 1318 Option SW in slot C1 is not supported (not

allowed). 1379-2819 Internal fault. Contact yourDanfoss supplier or

DanfossService Department. 2820 LCP stack overflow. 2821 Serial port overflow. 2822 USB port overflow. 3072-5122 Parameter value is outside its limit. 5123 Option in slot A: Hardware incompatible with con-

trol board hardware. 5124 Option in slot B: Hardware incompatible with con-

trol board hardware. 5125 Option in slot C0: Hardware incompatible with

control board hardware. 5126 Option in slot C1: Hardware incompatible with

control board hardware. 5376-6231 Internal fault. Contact your Danfoss supplier or

DanfossService Department.

WARNING/ALARM 39, Heatsink Sensor

No feedback from the heatsink temperature sensor.

The signal from the IGBT thermal sensor is not available on the power card. The problem could be on the power card, on the gate drive card, or the ribbon cable between the power card and gate drive card.

WARNING/ALARM 40, Overload of digital output terminal 27

Check the load connected to terminal 27 or remove shortcircuit connection. Check 5-00 Digital I/O Mode and 5-01 Terminal 27 Mode.

WARNING/ALARM 40, Overload of digital output terminal 29

Check the load connected to terminal 27 or remove shortcircuit connection. Check 5-00 Digital I/O Mode and 5-01 Terminal 29 Mode.

WARNING/ALARM 40, Overload of digital output on X30/6 or overload of digital ouput on x30/7

For X30/6, check the load connected to X30/6 or remove short-circuit connection. Check 5-32 Term X30/6 Digi Out (MCB 101).

67 302-365, Effective: June 5, 2017

Taco® SKV

For X30/7, check the load connected to X30/7 or remove short-circuit connection. Check 5-33 Term X30/7 Digi Out (MCB 101).

WARNING/ALARM 45, Ground Fault 2

Ground fault on start-up.

Troubleshooting

• Check for proper grounding and loose connections.

• Check for proper wire size.

• Check motor cables for short-circuits or leakage currents.

WARNING/ALARM 46, Power Card Supply

The supply on the power card is out of range.

There are three power supplies generated by the switch mode power supply (SMPS) on the power card: 24 V, 5 V, +/- 18 V. When powered with 24 VDC with the MCB 107 option, only the 24 V and 5 V supplies are monitored. When powered with three phase AC line voltage, all three supplied are monitored.

Troubleshooting

• Check for a defective power card.

• Check for a defective control card.

• Check for a defective option card.

• If a 24 VDC power supply is used, verify proper supply power.

WARNING/ALARM 47, 24 V Supply Low

The 24 V DC is measured on the control card. The external 24 VDC backup power supply may be overloaded; otherwise, contact your Danfoss supplier.

WARNING/ALARM 48, 1.8 Supply Low

The 1.8V DC supply used on the control card is outside of allowable limits. The power supply is measured on the control card. Check for a defective control card. If an option card is present, check for an overvoltage condition.

WARNING/ALARM 49, Speed Limit

When the speed is not within the specified range in 4-11 Motor Speed Low Limit [RPM] and 4-13 Motor Speed High Limit [RPM], the adjustable frequency drive will

show a warning. When the speed is below the specified limit in 1-86 Trip Speed Low [RPM] (except when starting or stopping), the adjustable frequency drive will trip.

ALARM 50, AMA calibration failed

Contact your Danfoss supplier or Danfoss Service Department.

ALARM 51, AMA check U

nom

and I

nom

The settings for motor voltage, motor current, and motor power are wrong. Check the settings in parameters 1-20 to 1-25.

ALARM 52, AMA low I

nom

The motor current is too low. Check the setting in 4-18 Current Limit.

ALARM 53, AMA motor too big

The motor is too big for the AMA to operate.

ALARM 54, AMA motor too small

The motor is too small for the AMA to operate.

ALARM 55, AMA parameter out of range

The parameter values of the motor are outside of the acceptable range. AMA will not run.

ALARM 56, AMA interrupted by user

The AMA has been interrupted by the user.

ALARM 57, AMA timeout

Try to restart AMA again. Repeated restarts may overheat the motor.

ALARM 58, AMA internal fault

Contact your Danfoss supplier.

WARNING 59, Current limit

The current is higher than the value in 4-18 Current Limit. Ensure that Motor data in parameters 1-20 through 1-25 are set correctly. Possibly increase the current limit. Be sure the system can operate safely at a higher limit.

ALARM 60, External interlock

A digital input signal is indicating a fault condition external to the adjustable frequency drive. An external interlock has commanded the adjustable frequency drive to trip. Clear the external fault condition. To resume normal operation, apply 24 VDC to the terminal programmed for external interlock. Reset the adjustable frequency drive.

WARNING 62, Output frequency at maximum limit

The output frequency has reached the value set in 4-19 Max Output Frequency. Check the application to deter-

mine the cause. Possibly increase the output frequency limit. Be sure the system can operate safely at a higher output frequency. The warning will clear when the output drops below the maximum limit.

WARNING/ALARM 65, Control card over temperature

The cutout temperature of the control card is 176°F [80 °C].

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Taco® SKV

Troubleshooting

• Check that the ambient operating temperature is within limits.

• Check for clogged filters.

• Check fan operation.

• Check the control card.

WARNING 66, Heatsink temperature low

The adjustable frequency drive is too cold to operate. This warning is based on the temperature sensor in the IGBT module. Increase the ambient temperature of the unit. Also, a trickle amount of current can be supplied to the adjustable frequency drive whenever the motor is stopped by setting 2-00 DC Hold/Preheat Current at 5% and 1-80 Function at Stop.

ALARM 67, Option module configuration has changed

One or more options have either been added or removed since the last power-down. Check that the configuration change is intentional and reset the adjustable frequency drive.

ALARM 68, Safe stop activated

Loss of the 24 VDC signal on terminal 37 has caused the adjustable frequency drive to trip. To resume normal operation, apply 24 VDC to terminal 37 and reset the adjustable frequency drive.

ALARM 69, Power card temperature

The temperature sensor on the power card is either too hot or too cold.

ALARM 70, Illegal FC configuration

The control card and power card are incompatible. Contact your supplier with the typecode of the unit from the nameplate and the part numbers of the cards to check compatibility.

ALARM 80, Drive initialized to default value

Parameter settings are initialized to default settings after a manual reset. Reset the unit to clear the alarm.

ALARM 92, No-flow

A no-flow condition has been detected in the system. 2223 No-Flow Function is set for alarm. Troubleshoot the

system and reset the adjustable frequency drive after the fault has been cleared.

ALARM 93, Dry pump

A no-flow condition in the system with the frequency converter operating at high speed may indicate a dry pump. 22-26 Dry Pump Function is set for alarm. Troubleshoot the system and reset the frequency converter after the fault has been cleared.

ALARM 94, End of curve

Feedback is lower than the setpoint. This may indicate leakage in the system. 22-50 End of Curve Function is set for alarm. Troubleshoot the system and reset the adjustable frequency drive after the fault has been cleared.

ALARM 95, Broken belt

Torque is below the torque level set for no load, indicating a broken belt. 22-60 Broken Belt Function is set for alarm. Troubleshoot the system and reset the adjustable frequency drive after the fault has been cleared.

ALARM 96, Start delayed

Motor start has been delayed due to short-cycle protection. 22-76 Interval between Starts is enabled. Troubleshoot the system and reset the adjustable frequency drive after the fault has been cleared.

WARNING 97, Stop delayed

Stopping the motor has been delayed due to short cycle protection. 22-76 Interval between Starts is enabled. Troubleshoot the system and reset the adjustable frequency drive after the fault has been cleared.

WARNING 98, Clock fault

Time is not set or the RTC clock has failed. Reset the clock in 0-70 Date and Time.

WARNING 200, Fire mode

This indicates the adjustable frequency drive is operating in fire mode. The warning clears when fire mode is removed. See the fire mode data in the alarm log.

WARNING 201, Fire mode was active

This indicates the adjustable frequency drive had entered fire mode. Cycle power to the unit to remove the warning. See the fire mode data in the alarm log.

WARNING 202, Fire mode limits exceeded

While operating in fire mode one or more alarm conditions has been ignored which would normally trip the unit. Operating in this condition voids unit warranty. Cycle power to the unit to remove the warning. See the fire mode data in the alarm log.

Taco® SKV

WARNING 203, Missing motor

With an adjustable frequency drive operating multimotors, an underload condition was detected. This could indicate a missing motor. Inspect the system for proper operation.

WARNING 204, Locked rotor

With an adjustable frequency drive operating multimotors, an overload condition was detected. This could indicate a locked rotor. Inspect the motor for proper operation.

WARNING 250, New spare part

A component in the adjustable frequency drive has been replaced. Reset the adjustable frequency drive for normal operation.

WARNING 251, New type code

A component in the adjustable frequency drive has been replaced and the type code changed. Reset the adjustable frequency drive for normal operation.

14.1 Supplemental Warning and Alarm Settings

3.Press [OK].

4.Scroll Down to parameter 22-2* No-Flow Detection.

5.Press [OK].

6.Scroll down to parameter 22-23 No-Flow Function.

14.1.1 No-Flow

Definition: No-flow = low power consumption & low speed condition.

Pump response options:

• off [0]

• sleep mode [1]

• warning + run [2] (Factory default mode for SelfSensing pump)

• alarm + trip [3]

No-Flow Settings

1.Press [Main Menu].

2.Scroll down to parameter 22-** Appl. Func-

tions.

7.Press [OK].

8.Change parameter 22-23 to desired feature.

9.Press [Back].

10.Scroll down to parameter 22-24 No-Flow Delay.

11.Select the amount of time the pump will run after no-flow is detected, before going into the mode selected in Parameter 22-23.

14.1.2 Dry-Run

Definition: Dry-run = low power consumption and 60Hz high speed condition.

Pump response options:

• off [0],

• warning + run [1] (Factory default mode for SelfSensing pump)

• alarm + trip [2]

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Taco® SKV

• manual reset alarm [3]

Dry-Run Settings

1.Press [Main Menu].

2.Scroll down to parameter 22-** Appl. Func- tions.

Press [OK].

4.Scroll Down to parameter 22-2* No-Flow Detection.

5.Press [OK].

8.Press [Back].

9.Scroll down to parameter 22-27 Dry Pump Delay.

10.Select the amount of time the pump will run after dry-run is detected, before going into the mode selected in Parameter 22-26.

14.1.3 End-Of-Curve

Definition: End-of-curve = pump yielding too large a volume to ensure the set pressure @ 60Hz max speed condition).

Pump response options:

• off [0],

• warning + run [1] (Factory default mode for SelfSensing pump)

• alarm + trip [2]

• manual reset alarm [3]

End-Of-Curve Settings

1.Press [Main Menu].

6.Scroll down to parameter 22-26 Dry Pump Function.

Press [OK].

7.Change parameter 22-26 to desired feature.

2.Scroll down to parameter 22-** Appl. Functions.

3.Press [OK].

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Taco® SKV

4.Scroll Down to parameter 22-5* End of Curve.

5.Press [OK].

6.Press [OK] to change parameter 25-50 End of Curve Function.

Function at Inverter Overload Settings

1.Press [Main Menu].

2.Scroll Down to parameter 14-** Special Functions.

3.Press [OK].

4.Scroll Down to parameter 14-6* Auto Derate.

7.Change parameter 22-50 to desired feature.

8.Press [Back].

9.Scroll down to parameter 25-51 End of Curve Delay.

10.Select the amount of time the pump will run after end-of-curve is detected, before going into the mode selected in Parameter 25-50.

14.1.4 Function at Inverter Overload

Definition: Function at Inverter overload = running along HP limit curve.

Pump response options:

• default VFD trips at 110% rated current [0];

• de-rate VFD when load exceeds rating via speed reduction [1]. (Factory default mode for SelfSensing pump)

5.Scroll down to parameter 14-61 Function at Inverter Overload.

6.Press [OK].

7.Change parameter 14-61 to desired feature.

72 302-365, Effective: June 5, 2017

15 CASING/IMPELLER WEAR RING CLEARANCES

Taco® SKV

PUMP

SIZE

1506 2.363 2.361 2.377 2.375 .016 .012 1507 2.738 2.736 2.752 2.750 .016 .012 2006 2.863 2.861 2.877 2.875 .016 .012 2007 2.938 2.936 2.952 2.950 .016 .012 2009 3.363 3.361 3.377 3.375 .016 .012 2011 3.488 3.486 3.502 3.500 .016 .012 3006 3.238 3.236 3.252 3.250 .016 .012 3007 3.688 3.686 3.702 3.700 .016 .012 3009 3.613 3.611 3.627 3.625 .016 .012 3011 3.988 3.986 4.002 4.000 .016 .012 3013 3.738 3.736 3.752 3.750 .016 .012 4007 4.238 4.236 4.252 4.250 .016 .012 4009 4.611 4.609 4.627 4.625 .018 .014 4011 4.738 4.736 4.752 4.750 .016 .012 4013 4.613 4.611 4.627 4.625 .016 .012 5007 4.988 4.986 5.002 5.000 .016 .012 6009 5.861 5.859 5.877 5.875 .018 .014 6011 5.861 5.859 5.877 5.875 .018 .014 6013 5.861 5.859 5.877 5.875 .018 .014 8011 7.234 7.232 7.252 7.250 .020 .016 8013 7.734 7.732 7.752 7.750 .020 .016

WEAR RING-SUCTION SIDE

DIA d1 DIA d2 CLEARANCE

MAX MIN MAX MIN MAX MIN

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16 SKV PUMP PROBLEM ANALYSIS

16.0.1 No Discharge

1.Pump not primed.

2.Speed too low.

3.System head too high.

4.Suction lift higher than pump is designed.

5.Impeller completely clogged.

6.Incorrect direction of rotation.

7.Air leak in suction line.

16.0.2 Insufficient Discharge Flow

1.Air leak in suction line.

2.Speed too low.

3.System head higher than anticipated.

4.Insufficient NPSH. Suction lift too high. Check gauges. Also check for clogged suction line or screen.

5.Impeller partially plugged.

6.Mechanical defects. a.Worn wear rings b.Impeller damaged. c. Incorrect direction of rotation.

c. Worn wear ring.

16.0.6 Vibration

1.Air leak in suction line.

2.Air in system.

3.Impeller partially plugged.

4.Foundation not rigid.

5.Mechanical defects. a.Damaged impeller. b.Motor bearings worn. c. Rotor out of balance. d.Shaft bent.

16.0.7 Motor Runs Hot

1.Speed too high.

2.Specific gravity of liquid too high.

3.Mechanical defects. a.Shaft bent. b.Rotating elements bind. c. Defective motor. d.Voltage lower than rating.

16.0.3 Insufficient Discharge Pressure

1.Speed too low.

2.System head less than anticipated.

3.Air in system.

4.Mechanical defects. a.Worn wear rings. b.Impeller damaged. c. Impeller diameter too small. d.Incorrect direction of rotation.

16.0.4 Loss of Suction

1.Leak in suction line.

2.Suction lift too high.

3.Insufficient NPSH.

4.Air in system.

5.Casing gasket defective.

16.0.5 Excessive Power Consumption

1.Speed too high.

2.System head lower than rating.

3.Specific gravity of liquid too high.

4.Mechanical defects. a.Shaft bent. b.Rotating elements bind.

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17 SPECIFICATIONS

17.1 Power-dependent Specifications

Table 10: Line Power Supply 200-240 V AC

Line Power Supply 200-240 V AC - Normal overload 110% for 1 minute

Adjustable frequency drive

Typical Shaft Output [kW] IP20, IP21 max. cable cross-section (line power, motor, brake and load sharing) [mm

(AWG)]

IP55, IP66 max. cable cross-section (line power, motor,

brake and load sharing) [mm

(AWG)]

Max. cable cross-section with disconnect 6, 4, 4, (10, 12, 12)

Table 11: Line Power Supply 3 x 200-240 V AC

Line Power Supply 3 x 200-240 V AC - Normal overload 110% for 1 minute

Adjustable frequency drive

Typical Shaft Output [kW]

IP20, IP21 max. cable cross-section (line power, motor,

brake and load sharing) [mm

IP21, IP55, IP66 max. cable cross-section (line power,

motor) [mm

(AWG)]

IP21, IP55, IP66 max. cable cross-section (brake, load

sharing) [mm

(AWG)]

P1K1

1.1

P1K5

1.5

P2K2

2.2

4, 4, 4 (12, 12, 12) (min. 0.2 (24))

4, 4, 4 (12, 12, 12)

P5K5

5.5

P7K5

7.5

P11K

10, 10 (8,8-) 35,-,- (2,-,-) 35 (2) 50 (1)

10, 10 (8,8-)

35, 25, 25 (2, 4, 4)

50 (1)

16, 10, 16 (6, 8 ,6) 35,-,- (2,-,-) 50 (1)

P3K0

P15K

Taco® SKV

P3K7

3.7

P18K

18.5

Table 12: Line Power Supply 3 x 200-240 V AC

Line Power Supply 3 x 200-240 V AC - Normal overload 110% for 1 minute

Adjustable frequency drive Typical Shaft Output [kW]

IP20, IP21 max. cable cross-section (line power, motor,

brake and load sharing) [mm

(AWG)]

IP21, IP55, IP66 max. cable cross-section (line power,

motor) [mm

(AWG)]

IP21, IP55, IP66 max. cable cross-section (brake, load

sharing) [mm

(AWG)]

P22K

P30K

P37K

150 (300 MCM)

95 (3/0)

P45K

Table 13: Line Power Supply 3 x 380-480 V AC

Line Power Supply 3 x 380-480 V AC - Normal overload 110% for 1 minute

Adjustable frequency drive Typical Shaft Output [kW]

Typical Shaft Output [HP] at 460 V 1.5 2.0 2.9 4.0 5.0 7.5 10

IP20, IP21 max. cable cross-section (line power, motor,

brake and load sharing) [mm

(AWG)]

IP55, IP66 max. cable cross-section (line power, motor,

brake and load sharing) [mm

(AWG)]

Max. cable cross-section with disconnect 6, 4, 4 (10, 12, 12)

P1K1

1.1

P1K5

1.5

P2K2

P3K03P4K04P5K5

2.2

4, 4, 4 (12, 12, 12)

(min. 0.2 (24))

4, 4, 4 (12, 12, 12)

P7K5

5.5

7.5

75 302-365, Effective: June 5, 2017

Taco® SKV

Table 14: Line Power Supply 3 x 380-480 V AC

Line Power Supply 3 x 380-480 V AC - Normal overload 110% for 1 minute

Adjustable frequency drive Typical Shaft Output [kW]

P11K

P15K

P18K

18.5

P22K

P30K

Typical Shaft Output [HP] at 460 V 15 20 25 30 40 15 20 25 30 40 IP20 max. cable cross-section (line power, brake, motor

and load sharing) IP21, IP55, IP66 max. cable cross-section (line power, motor) [mm

(AWG)]

IP21, IP55, IP66 max. cable cross-section (brake, load

sharing) [mm

(AWG)]

16, 10, - (8, 8, -) 35,-,- (2,-,-) 35 (2)

10, 10, 16 (6, 8, 6) 35, 25, 25 (2, 4, 4) 50 (1)

10, 10, - (8, 8, -) 35, -, - (2, -, -) 50 (1)

Table 15: Line Power Supply 3 x 380-480 V AC

Line Power Supply 3 x 380-480 V AC - Normal overload 110% for 1 minute

Adjustable frequency drive Typical Shaft Output [kW]

Typical Shaft Output [HP] at 460 V 15 20 25 30 40 50 60 75 100 125 IP20 max. cable cross-section (line power, brake, motor

and load sharing) IP21, IP55, IP66 max. cable cross-section (line power,

motor) [mm2 (AWG)] IP21, IP55, IP66 max. cable cross-section (brake, load

sharing) [mm2 (AWG)]

P37K

P45K

P55K

50 (1) 150 (300 MCM)

150 (300 MCM)

P75K

95 (3/0)

P90K

Table 16: With brake and load sharing 95 / 4/0

Line Power Supply 3 x 525-600 V AC - Normal overload 110% for 1 minute

Size: P1K1 P1K5 P2K2 P3K0 P3K7 PK40 P5K5 P7K5 P11K

Typical Shaft Output [kW] 1.1 1.5 2.2 3 3.7 4 5.5 7.5 11 IP20 max. cable cross-section (line power, motor,

brake and load sharing) [mm

]/[AWG]

IP55, IP66 max. cable cross-section (line power, motor, brake and load sharing) [mm2]/[AWG]

4, 4, 4 (12, 12, 12)

(min. 0.2 (24))

4, 4, 4 (12, 12, 12)

(min. 0.2 (24))

Max. cable cross-section with disconnect 6, 4, 4 (12, 12, 12)

Table 17: With brake and load sharing 95 / 4/0

Line Power Supply 3 x 525-600 V AC - Normal overload 110% for 1 minute

Size: P15K P18K P22K P30K P37K P45K P55K P75K P90K

Typical Shaft Output [kW] 15 18.5 22 30 37 45 55 75 90 IP20 max. cable cross-section (line power, motor, brake and load sharing) [mm IP55, IP66 max. cable cross-section (line power,

motor, brake and load sharing) [mm2]/[AWG] Max. cable cross-section with disconnect

]/[AWG]

76 302-365, Effective: June 5, 2017

17.1.1 Line Power Supply 3 x 525-690 V AC

Table 18: Line Power Supply 3 x 525-690 V AC

Normal overload 110% for 1 minute

Adjustable frequency drive

Typical Shaft Output [kW]

IP20 max. cable cross-section (line power, motor, brake

and load sharing) [mm

]/(AWG)

Table 19: Line Power Supply 3 x 525-690 V AC IP20-Chassis/IP21-IP55/NEMA 1-NEMA12

Normal overload 110% for 1 minute

Adjustable frequency drive Typical Shaft Output [kW]

Typical Shaft Output [HP] at 575V 16.4 20.1 24 33 60 75

Max. cable size (line power, motor, brake) [mm2]/(AWG)

Table 20: Line Power Supply 3 x 525-690 V AC IP21-IP55/NEMA 1-NEMA 12

Normal overload 110% for 1 minute

Adjustable frequency drive Typical Shaft Output [kW]

Typical Shaft Output [HP] at 575V 40 60 60 75 100

Max. cable size (line power, motor, brake) [mm2]/(AWG)

P1K1

1.1

P1K5

1.5

P2K2

2.2

P3K03P4K04P5K5

[0.2-4]/(24-10)

P11K11P15K15P18K18P22K22P45K45P55K

[35]/(1/0) [50]/(1)

P30K30P37K37P45K45P55K55P75K

[95]/(4/0)

5.5

Taco® SKV

P7K5

7.5

American Wire Gauge

17.2 Connection Tightening Torques

Table 21: Tightening of Terminals

Power (kW) Torque (Nm)

Enclosure

200-240V380-480/

500 V

525-600 V 525-690 V

A2 1.1-2.2 1.1-4.0 0.6 0.6 0.6 1.8 3 0.6

A3 3.0-3.7 5.5-7.5 1.1-7.5 1.1-7.5 0.6 0.6 0.6 1.8 3 0.6

A4 1.1-2.2 1.1-4.0 0.6 0.6 0.6 1.8 3 0.6

A5 1.1-3.7 1.1-7.5 1.1-7.5 0.6 0.6 0.6 1.8 3 0.6

B1 5.5-11 11-18 11-18 1.8 1.8 1.5 1.5 3 0.6

B2 15 22-30 22-30 11-30 4.5 4.5 3.7 3.7 3 0.6

B3 5.5-11 11-18 11-18 1.8 1.8 1.8 1.8 3 0.6

B4 15-18 22-37 22-37 11-37 4.5 4.5 4.5 4.5 3 0.6

C1 18-30 37-55 37-55 10 10 10 10 3 0.6

C2 37-45 75-90 75-90 37-90

C3 22-30 45-55 45-55 45-55 10 10 10 10 3 0.6 C4 37-45 75-90 75-90

For different cable dimensions x/y, where x <= 0.147 in2 [95 mm2] and y >= 0.147 in2 [95 mm2].

Line

Power

14/24

Motor

14/24

Connection

Brake Ground Relay

14 14 3 0.6

Taco® SKV

APPENDIX A: SET-UP FOR STANDBY PUMP ALTERNATION

This section describes how to alternate Taco SKV pump units based on elapsed time and how to configure the standby pump to energize in the event that the duty pump fails.

A.1 Overview

Two identical drives are used; one installed on each pump. One drive is configured as the “lead” drive and the other as the “standby” drive, but both drives participate equally in the alternation. The “lead” drive is the drive that controls the alternation process. If one drive enters an alarm condition, the other automatically assumes operation. Alternation attempts do not occur when one drive is in alarm.

This system requires one set of dry contacts for start/stop. Twenty-four VDC control voltage from both drives is wired to the lead drive’s relay 1. If the lead drive’s control circuitry is working, it supplies power. If the lead drive cannot provide control voltage, the standby drive automatically assumes control.

Figure A-1: Wiring for 2x0 Pump Alternation

Drive 1

Relay 1

COM

02NO03

+24V13+24V18D IN19D IN27D IN29D IN32D IN33D IN20COM

I/O Digital

Drive 2

+24V13+24V18D IN19D IN27D IN29D IN32D IN33D IN20COM

I/O Digital

No external monitoring is needed. Pump alternation is controlled by the active set-up of each drive. The active set-up is controlled by the lead drive.

• Under normal conditions, the lead drivechanges its active set-up based on the time delay specified in timer 0 by parameter setting 13–20.0.

• When the lead drive is operating normally in set-up 1, its digital output 29 is high. This state puts the standby drive into set-up 2.

• When the lead drive is operating normally in set-up 2, its digital output 29 is low. This state puts the standby drive into set-up 1.

• If the lead drive encounters an alarm condition or loses power, its digital output 29 is low. This state puts the standby drive into set-up 1, allowing it to take over operation.

• If the standby drive encounters an alarm condition or loses power, its digital output 27 is low. This condition causes the lead drive to move into set-up 1, allowing it to take over operation.

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Taco® SKV

During system commissioning and other situations, the user may want to force pump alternation rather than rely on the setting in parameter 13-20.0.

• Logic rule 1 allows the user to override the timer by pressing the [ok] and [>] keys on the keypad (local control panel) simultaneously.

• Timer 1 offers “anti–bounce” protection for this key combination. After this combination of keys is pressed, the drive ignores any instance of the same combination again for two seconds.

A.2 Settings

Settings to operate the standby pump alternation have been programmed into the My Personal Menu. Follow this procedure to enable the drive's standby pump alternation capabilities.

1.Press the [Quick Menus] button.

2.Press the [OK] button to enter “My Personal

Menu.”

6.Scroll down to Parameter 0-10 Active Set- up and press [OK].

7.Change “Active Set-up 1” to “Multi Set-up”. a.Parameter 0-10 = Active Set-up.

8.Press [OK].

9.Repeat this procedure on the Standby Drive.

A.2.1 Check Alternation

1.Ensure the lead and standby pumps are connected per wiring diagram in Figure A-1 above.

2.On the Lead drive (Drive A), Press the [Status] button to get back to the main screen.

3.Scroll down to Parameter 13-20 SL Con- troller Time and press [OK].

4.(Set the amount of time between pump alternations. Factory default is 24 hours. Maximum value is 99 hours.

a.Parameter 13-20 = SL Controller Time.

5.Press [OK].

3.The Lead drive (Drive A) should display in the upper right hand corner of the screen (Set-up 1).

4.On the Standby drive (Drive B), Press the [Status] button to get back to the main screen.

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Taco® SKV

5.The Standby drive (Drive B) should display in the upper right hand corner of the screen (Set-up

2).

6.If Drive B remains in Set-up 1 , check the following:

a.Check that wire connections comply with

Figure A-1.

b.Check that both Drives’ active set-ups are set to

“Multi Set-up” per Section A.2 ”Settings”.

7.To test alternation, Press [OK] and [Right Arrow] at the same time.

8.Observe the two drives swap setups. a.Drive A switches to Set-up 2 , becoming the

Standby Drive.

b.Drive B switches to Set-up 1 , becoming the

Lead Drive.

9.Repeate step 7 as desired.

10.The pumps are now ready for alternation.

80 302-365, Effective: June 5, 2017

A.3 Parameters

Table 22: Lead and Lag Drive Parameters

Taco® SKV

Parameter Number Parameter Name

0–01 Language [22] English US [22] 0–03 Regional settings [1] North America [1] North America 0–10 Active set-up [9] Multi set-up [9] Multi set-up 0–11 Programming set-up [1] Set-up 1 [2] Set-up 2 0–12 This set–up linked to [0] Not linked [1] Set-up 1 5–01 Terminal 27 mode [1] Output [1] Output 5–02 Terminal 29 mode [1] Output [1] Output 5–10 Terminal 18 digital input [8] Start [0] No operation 5–11 Terminal 19 digital input [0] No operation [0] No operation 5–12 Terminal 27 digital input [0] No operation [0] No operation 5–13 Terminal 29 digital input Jog Jog 5–14 Terminal 32 digital input [0] No operation [0] No operation 5–15 Terminal 33 digital input [23] Set-up select bit 0 [23] Set-up select bit 0 5–19 Terminal 37 Safe Stop Safe Stop Alarm Safe Stop Alarm 5–30 Terminal 27 digital output [160] No alarm [160] No alarm 5–31 Terminal 29 digital output [160] No alarm [0] No operation 5–40 Relay 1 [1] Control ready [1] Control ready 5–40.0 Function Relay [1] Control ready [1] Control ready 5–40.1 Function Relay Running Running

State controller start and stop events

13–00 SL controller mode [1] on [1] on 13–01 Start event [37] Digital input di32 [37] Digital input di32 13–02 Stop event [26] Logic rule 0 [26] Logic rule 0 13–20.0 SL controller timer 0 024:00:00.000 024:00:00.000 13–20.1 SL controller timer 1 000:00:02.000 000:00:02.000

Logic rules

13–40.0 Logic rule boolean 1 [37] Digital input di32 [37] Digital input di32 13–40.1 Logic rule boolean 1 [43] ok key [43] ok key 13–41.0 Logic rule operator 1 [5] not and [5] not and 13–41.1 Logic rule operator 1 [1] and [1] and 13–42.0 Logic rule boolean 2 [1] true [1] true 13–42.1 Logic rule boolean 2 [46] Right key [46] Right key 13–43.1 Logic rule operator 2 [2] or [2] or 13–44.1 Logic rule boolean 3 [30] SL time–out 0 [30] SL time–out 0

States

13–51.0 SL controller event [1] true [1] true 13–51.1 SL controller event [31] SL time–out 1 [31] SL time–out 1 13–51.2 SL controller event [27] Logic rule 1 [27] Logic rule 1 13–51.3 SL controller event [1] true [1] true 13–51.4 SL controller event [31] sl time–out 1 [31] sl time–out 1 13–51.5 SL controller event [27] Logic rule 1 [27] Logic rule 1 13–52.0 SL controller action [30] Start timer 1 [30] Start timer 1 13–52.1 SL controller action [29] Start timer 0 [29] Start timer 0

Set-up 1 Set-up 2

Parameter Value

Taco® SKV

Parameter Number Parameter Name

Set-up 1 Set-up 2

Parameter Value

13–52.2 SL controller action [3] Select set-up 2 [3] Select set-up 2 13–52.3 SL controller action [30] Start timer 1 [30] Start timer 1 13–52.4 SL controller action [29] Start timer 0 [29] Start timer 0 13–52.5 SL controller action [2] Select set-up 1 [2] Select set-up 1

82 302-365, Effective: June 5, 2017

APPENDIX B: ON-SITE DRIVE MOUNTING TO WALL OR PUMP

Follow the steps below for on-site drive mounting to wall or to pump.

B.1 Match Pump and Drive Tags

IMPORTANT: Ensure the pump tag matches

the VFD tag. The pump and drive will have identical tags as shown below.

Figure B-1: Example Tag

B.2 Mechanical Connections

For mechanical connections to pump, see section 7.2.

For mechanical connections to wall, see section 7.3.

B.3 Electric Code Compliance

Installation must be in compliance with national and local electric codes.

For electrical connections see Section “8 Electrical Connections” on page 9.

B.4 Before Start Safety Inspection

DANGER: HIGH VOLTAGE! If input and out-

put connections have been connected improperly, there is potential for high voltage on these terminals. If power leads for multiple motors are improperly run in same conduit, there is potential for leakage current to charge capacitors within the frequency converter, even when disconnected from mains input. For initial start up, make no assumptions about power components. Follow prestart procedures. Failure to follow pre-start procedures could result in personal injury or damage to equipment.

1.Input power to the unit must be OFF and locked out. Do not rely on the frequency converter disconnect switches for input power isolation.

2.Verify that there is no voltage on input terminals L1 (91), L2 (92), and L3 (93), phase-to-phase and phase-to-ground.

3.Verify that there is no voltage on output terminals 96 (U), 97 (V), and 98 (W), phase-to-phase and phase-to-ground.

4.Confirm continuity of the motor by measuring ohm values on U-V (96-97), V-W (97-98), and W-U (98-

96).

5.Check for proper grounding of the frequency converter as well as the motor.

6.Inspect the frequency converter for loose connections on terminals.

7.Record the following motor-nameplate data: power, voltage, frequency, full load current, and nominal speed. These values are needed to program motor nameplate data later.

8.Confirm that the supply voltage matches voltage of frequency converter and motor.

CAUTION: Before applying power to the unit, inspect the entire installation as detailed in Table 23 on page 84. Check mark those items when completed.

Taco® SKV

Table 23: Inspection Checklist

Inspect for Description Check?

Auxiliary equipment – Look for auxiliary equipment, switches, disconnects, or input fuses/cir-

cuit breakers that may reside on the input power side of the frequency converter or output side to the motor. Ensure that they are ready for full speed operation.

– Check function and installation of any sensors used for feedback to the

frequency converter.

– Remove power factor correction caps on motor(s), if present.

Cable routing – Ensure that input power, motor wiring, and control wiring are separated

or in three separate metallic conduits for high frequency noise isolation.

Control wiring – Check for broken or damaged wires and loose connections.

– Check that control wiring is isolated from power and motor wiring for

noise immunity. – Check the voltage source of the signals, if necessary. – The use of shielded cable or twisted pair is recommended. Ensure that

the shield is terminated correctly.

Cooling clearance – Measure that top and bottom clearance is adequate to ensure proper air

flow for cooling.

EMC considerations – Check for proper installation regarding electromagnetic compatibility. Environmental considerations – See equipment label for the maximum ambient operating temperature

limits. – Humidity levels must be 5-95% non-condensing.

Fusing and circuit breakers – Check for proper fusing or circuit breakers.

– Check that all fuses are inserted firmly and in operational condition and

that all circuit breakers are in the open position.

(grounding) – The unit requires an earth wire(ground wire) from its chassis to the build-

ing earth (ground). – Check for good earth connections(ground connections) that are tight

and free of oxidation. – Earthing (Grounding) to conduit or mounting the back panel to a metal

surface is not a suitable earth (ground).

Input and output power wiring – Check for loose connections.

– Check that motor and mains are in separate conduit or separated

screened cables.

Panel interior – Inspect that the unit interior is free of dirt, metal chips, moisture, and cor-

rosion.

Switches – Ensure that all switch and disconnect settings are in the proper posi-

tions.

Vibration – Check that the unit is mounted solidly or that shock mounts are used, as

necessary. – Check for an unusual amount of vibration.

B.5 Applying Power to the Frequency Converter

DANGER: HIGH VOLTAGE! Frequency converters contain high voltage when connected to AC mains.

Installation, start-up and maintenance should be performed by qualified personnel only. Failure to comply could result in death or serious injury.

84 302-365, Effective: June 5, 2017

Taco® SKV

WARNING: UNINTENDED START! When the frequency converter is connected to AC mains, the motor may start at any time. The frequency converter, motor, and any driven equipment must be in operational readiness. Failure to comply could result in death, serious injury, equipment, or property damage.

1.Confirm the input voltage is balanced within 3%. If not, correct input voltage imbalance before proceeding. Repeat this procedure after the voltage correction.

2.Ensure that optional equipment wiring, if present, matches the installation application.

3.Ensure that all operator devices are in the OFF position. Panel doors should be closed or cover mounted.

4.Apply power to the unit. DO NOT start the frequency converter at this time. For units with a disconnect switch, turn to the ON position to apply power to the frequency converter.

NOTE: If the status line at the bottom of the LCP reads “AUTO REMOTE COASTING” or “Alarm 60 External Interlock” is displayed, this indicates that the unit is ready to operate but is missing an input signal on terminal 27.

B.6 Run Automatic Motor Adaptation

Automatic motor adaptation (AMA) is a test procedure that measures the electrical characteristics of the motor to optimize compatibility between the frequency converter and the motor.

• The frequency converter builds a mathematical model of the motor for regulating output motor current. The procedure also tests the input phase balance of electrical power. It compares the motor characteristics with the data entered in parameters 120 to 1-25.

• It does not cause the motor to run or harm to the motor. Some motors may be unable to run the complete version of the test. In that case, select Enable reduced AMA.

• If an output filter is connected to the motor, select Enable reduced AMA.

• Run this procedure on a cold motor for best results.

NOTE: The AMA algorithm does not work when using PM motors.

NOTE: AMA has already been completed by Taco on all pump-mounted VFDs. You will only need to run AMA if the wire/motor lead is different from the one supplied by Taco.

To run AMA:

1.Press [Main Menu] to access parameters.

2.Scroll to parameter group 1-** Load and Motor.

3.Press [OK].

4.Scroll to parameter group 1-2* Motor Data.

5.Press [OK].

6.Scroll to 1-29 Automatic Motor Adaptation (AMA).

7.Press [OK].

8.Select Enable complete AMA.

9.Press [OK].

10.Follow on-screen instructions.

11.The test runs automatically and indicates when it is complete.

B.7 Increase Warning Current Limit

Increase warning current limit in parameter 4-51 Warning Current High to the current specified on motor name-

plate.

B.8 Check Motor Rotation

Before running the frequency converter, check the motor rotation. The motor will run briefly at 5Hz or the minimum frequency set in 4-12 Motor Speed Low Limit [Hz].

1.Press [Quick Menu].

2.Scroll to Q2 Quick Set-up.

3.Press [OK].

4.Scroll to 1-28 Motor Rotation Check.

5.Press [OK].

6.Scroll to Enable.

7.The following text appears: “Note! Motor may run in wrong direction.”

8.Press [OK].

9.Follow the on-screen instructions.

To change the direction of rotation, remove power to the frequency converter and wait for power to discharge. Reverse the connection of any two of the three motor cables on the motor or frequency converter side of the connection.

B.9 Start-up Procedure

Follow Start-up procedure shown in “11 Start-Up Procedure” on page 37.

85 302-365, Effective: January 14, 2014

Taco® SKV

LIMITED WARRANTY STATEMENT

Taco, Inc. (Taco) will repair or replace without charge (at the company's option) any product or part which is proven defective under normal use within one (1) year from the date of start-up or one (1) year and six (6) months from date of shipment (whichever occurs first).

In order to obtain service under this warranty, it is the responsibility of the purchaser to promptly notify the local Taco stocking distributor or Taco in writing and promptly deliver the subject product or part, delivery prepaid, to the stocking distributor. For assistance on warranty returns, the purchaser may either contact the local Taco stocking distributor or Taco. If the subject product or part contains no defect as covered in this warranty, the purchaser will be billed for parts and labor charges in effect at time of factory examination and repair.

Any Taco product or part not installed or operated in conformity with Taco instructions or which has been subject to accident, disaster, neglect, misuse, misapplication, inadequate operating environment, repair, attempted repair, modification or alteration, or other abuse, will not be covered by this warranty.

Taco products are not intended for use to support fire suppression systems, life support systems, critical care applications, commercial aviation, nuclear facilities or any other applications where product failure could lead to injury to person, loss of life, or catastrophic property damage and should not be sold for such purposes.

If in doubt as to whether a particular product is suitable for use with a Taco product or part, or for any application restrictions, consult the applicable Taco instruction sheets or in the U.S. contact Taco at 401-942-8000 and in Canada contact Taco (Canada) Limited at 905-564-

9422.

Taco reserves the right to provide replacement products and parts which are substantially similar in design and functionally equivalent to the defective product or part. Taco reserves the right to make changes in details of design, construction, or arrangement of materials of its products without notification.

TACO OFFERS THIS WARRANTY IN LIEU OF ALL OTHER EXPRESS WARRANTIES. ANY WARRANTY IMPLIED BY LAW

INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS IS IN EFFECT ONLY FOR THE DURATION OF THE EXPRESS WARRANTY SET FORTH IN THE FIRST PARAGRAPH ABOVE.

THE ABOVE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR STATUTORY, OR ANY OTHER WARRANTY OBLIGATION ON THE PART OF TES.

TACO WILL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF ITS PRODUCTS OR ANY INCIDENTAL COSTS OF REMOVING OR REPLACING DEFECTIVE PRODUCTS.

This warranty gives the purchaser specific rights, and the purchaser may have other rights which vary from state to state. Some states do not allow limitations on how long an implied warranty lasts or on the exclusion of incidental or consequential damages, so these limitations or exclusions may not apply to you.

Taco SKV SelfSensing Installation, Operation And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual