Hardware Reference, Installation, and Troubleshooting Manual D2-3411-8
LiquiFlo AC Power Modules
Version 6.4
Important User Information
IMPORTANT
Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety
Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1
your local Rockwell Automation sales office or online at http://www.rockwellautomation.com/literature/
important differences between solid-state equipment and hard-wired electromechanical devices. Because of this difference,
and also because of the wide variety of uses for solid-state equipment, all persons responsible for applying this equipment
must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the
use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
available from
) describes some
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment,
which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).
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Trademarks not belonging to Rockwell Automation are property of their respective companies.
Table 9.2 – B-Frame LiquiFlo Drive Replacement Parts .......................................... 9-7
Table 9.3 – C-Frame LiquiFlo Drive Replacement Parts .......................................... 9-8
Table 9.4 – D-Frame LiquiFlo Drive Replacement Parts .......................................... 9-9
Contents
VII
VIII
LiquiFlo 2.0 AC Drive User Manual
This instruction manual describes the LiquiFlo™ drive’s Power Module and regulator
hardware. It does not cover the LiquiFlo software. For software information, refer to the
LiquiFlo AC General Purpose (V/Hz) and Vector Duty Drive Software Start-Up and
Reference Manual (D2-3410).
This manual is intended for qualified electrical and plumbing personnel.
LiquiFlo drives will typically be referenced by frame size. If additional clarity is
required, drive model numbers wil also be included.
1.1Related Publications
Refer to the following related publications as necessary for more information:
• D2-3410 - LiquiFlo AC General Purpose (V/Hz) and Vector Duty Drive Software
Start-Up and Reference Manual
• D2-3305 - Motor Encoder Cable Kit
C
HAPTER
Introduction
1
• D2-3348 - Control and Configuration Software (CS3000)
• D2-3341 - Remote Meter Interface Board
• D2-3342 - Operator Interface Module
• D2-3449 - LiquiFlo AC Drive Panel Mount Kit
1.2Getting Assistance from Reliance Electric
If you have any questions or problems with the products described in this instruction
manual, contact your local Reliance Electric sales office. For technical assistance, call
1-864-284-5444.
Introduction
1-1
1-2
LiquiFlo AC Power Modules, Hardware Reference Version 6.4
C
HAPTER
About the Drive
This chapter describes how to identify the drive using the model number matrix and
shows the major drive components.
The LiquiFlo AC drive is a PWM (pulse-width-modulated) liquid-cooled drive that
provides vector and general purpose regulation for a wide range of applications.
Using vector regulation, the drive can provide high dynamic response, maintain full
rated motor torque to zero speed, and precisely control motor speed in both
directions. The drive can provide this functionality either with encoder feedback (flux
vector control or FVC) or without (sensorless vector control or SVC).
Using general purpose (volts/hertz or V/Hz) regulation, the drive is suited for a broad
range of applications requiring adjustable speed control of motors.
2.1Identifying the Drive by Model Number
Each LiquiFlo AC drive can be identified by its model number. See figure 2.1. This
number appears on the shipping label and on the drive’s nameplate. The drive’s model
number includes the Power Module and the regulator version. Drive power ratings are
provided in table 2.1.
Voltage
2 = 200 to 230 VAC
3 = 270 to 310 VAC
4 = 380 to 480 VAC
Enclosure
0 = Open Chassis
1 = NEMA 1
2 = NEMA 12 Only
4 = NEMA 4x (Indoor Only) or NEMA 12
Regulator V e rsio n
60 = Version 6.x Firmware
Figure 2.1 – Identifying the Drive Model Number
NNN AA N N NN
About the Drive
2-1
Table 2.1 – Power and Enclosure Ratings
Frame Size and
Model
Number
41L4060
41LR4060
50LW4060
50LR4060
64LW4060
64LR4060
120L4060D-Frame
* With V/Hz regulation, 110% continuous output current capability. With vector regulation, 150% output current capability for 5 sec.
**Note that LiquiFlo drives are rated for use with water at specified temperatures and pressures as the coolant. Some coolant fluids may
allow an increased output rating while others may require the output to be derated. The LiquiFlo drive is also capable of running at 4 kHz
or 8 kHz. Contact Reliance Electric for ratings.
Selected
Regulation*
B-Frame
V/Hz or Vector
C-Frame
V/Hz or Vector
C-Frame
V/Hz or Vector
V/Hz or Vector
Enclosure
Rating
Open-Chassis
Style
Open-Chassis
Style
Open-Chassis
Style
Open-Chassis
Style
Input
Power
(KVA)
3444144144600 / 1100
3985005005500 / 1500
5126436437000 / 2000
9561200120011700/4000
Input
Current
(Amps)
Output Current
at 2 kHz**
(Amps)
Full Load
Power Loss Watts
Fluid / Air
2.2Enclosure Ratings
LiquiFlo drives have the following enclosure rating:
• Open-Chassis Style: Intended to be installed in an enclosure.
LiquiFlo drives must be placed in an enclosure.
2.3B-Frame LiquiFlo Drive Component Locations
The B-Frame LiquiFlo drives have the following main components. The numbered
items listed below provided correspond to the numbers used in figure 2.2.
Replacement parts are listed in chapter 9.
1.Bus Bars (3) (AC Output)
2.Bus Bars (6) (AC Input)
3.IGBT Modules
4.Output Laminate
5.Capacitors
6.RMI Board
7.Casting
8.Membrane Switch Keypad
9.Coolant Lines - (a) Inlet, (b) Outlet
10.Regulator Board
11.Power Module Control (PCB)
12.Current Feedback Devices (3)
2-2
LiquiFlo AC Power Modules, Hardware Reference Version 6.4
The C-Frame LiquiFlo drives have the following main components. The numbered
items listed below provided correspond to the numbers used in figure 2.3.
Replacement parts are listed in chapter 9.
The D-Frame LiquiFlo drives have the following main components. The numbered
items listed below provided correspond to the numbers used in figure 2.4.
Replacement parts are listed in chapter 9.
1.Chillplate Harness
2.Bus Bars (AC Input)
3.Bus Bars (AC Output)
4.Power Module Control PCB
5.Membrane Switch Keypad
6.Regulator PCB
7.RMI Option PCB
8.Current Feedback Devices
9.Gate Driver PCB
10.Coolant Connection (Outlet)
11.IGBT Module
12.Capacitors
13.Coolant Connection (Inlet)
14.Output Laminate
2-6
LiquiFlo AC Power Modules, Hardware Reference Version 6.4
LiquiFlo drive regulation is performed by a microprocessor on the Regulator board.
See figure 2.5. Drive operation is adjusted by the parameters entered through the
keypad. The Regulator board accepts power circuit feedback signals and an external
speed reference signal, as well as data from an encoder that is attached to the motor
when set up for FVC regulation. The Regulator board provides:
• PWM gating signals to the IGBT power devices
Based on the output of the control loop, the regulator sends PWM gating signals to
isolated drivers on the Gate Driver board. These drivers switch the Insulated Gate
Bi-polar Transistors (IGBTs), producing a waveform that corresponds to the voltage
and frequency outputs of the inner V/Hz, FVC, or SVC regulators. The IGBTs can be
switched at either a 2, 4, or 8 kHz carrier frequency.
• Form A and B contacts for drive status indicators
The Form A and B contacts are under control of the user via programmable
parameters. A Form A or B transition can indicate drive status. The contacts are
rated for 5 amps resistive load at 250 VAC/30 VDC and are made available through
the terminal strip.
• Display data for a four-character display and fourteen indicator LEDs
For a description of the keypad/display refer to section 2.6.6. For operational
instructions, see the LiquiFlo Software Reference manual (D2-3410).
• An analog output
The analog output is a scaled voltage (0-10 VDC) or current (4-20 mA) signal
proportional to either motor speed (RPM), motor torque, or current (%TORQUE).
The current signal selection (via jumper J17) requires a power supply for operation.
The power can be sourced from the encoder terminals (4 and 9) or from an external
15 V power supply. See table 7.1, terminals 10 and 11, for more information. The
analog output signal is available through the terminal strip.
2-8
LiquiFlo AC Power Modules, Hardware Reference Version 6.4
Jumpers J4 and J17 on the Regulator board are factory-set for voltage in and voltage
out signals. Refer to figure 2.5 for their locations on the Regulator board. If you need
to change the jumpers’ settings, use the following procedures.
ATTENTION:Do not alter the setting of any jumper not described in this
instruction manual. Failure to observe this precaution could result in
!
2.6.1.1 Setting the Analog Input Speed Reference Jumper (J4)
Jumper J4 is the analog speed/torque (U.000) reference jumper. This jumper selects
either +/- 10 VDC or 0-20 mA input. Parameters P.009, P.010, and P.011 are used in
conjunction with the jumper.
Note that if the position of jumper J4 is changed after the parameters are
programmed, the software will not recognize that the input reference or polarity has
been changed. Be sure to verify that parameters P.009, P.010, and P.011 are correct
before starting the drive. Refer to the LiquiFlo Software Start-Up and Reference
manual for more information.
Use the following procedure to set jumper J4:
damage to, or destruction of, the equipment.
ATTENTION:DC bus capacitors retain hazardous voltages after input
power has been disconnected. After disconnecting input power, wait five
!
Step 1. Turn off input power to the drive and wait five minutes.
Step 2. Open the door of the enclosure.
Step 3. Verify that the DC bus voltage is zero by following the procedure in section
Step 4. Locate jumper J4 on the Regulator board. Refer to figure 2.5.
Step 5. Locate pin 1 on jumper J4. Move the jumper to the desired setting as shown
Step 6. Close the door of the enclosure.
Step 7. Reapply input power.
(5) minutes for the DC bus capacitors to discharge and then check the
voltage with a voltmeter to ensure the DC bus capacitors are discharged
before touching any internal components. Failure to observe this
precaution could result in severe bodily injury or loss of life.
9.3.
in figure 2.6.
2-10
LiquiFlo AC Power Modules, Hardware Reference Version 6.4
Step 8. Verify that Terminal Strip Analog Input Offset (P.009), Terminal Strip Analog
Input Gain (P.010), and Terminal Strip Analog Input Configure (P.011) are
correctly set. Note that the jumper settings must match the software settings;
otherwise, the reference value may differ from what is expected. Refer to the
LiquiFlo Software Start-Up and Reference manual for more information.
Voltage Input OptionCurrent Input Option
Pins 2-3Pins 1-2
+10 VDC
J4J4
(default)
Figure 2.6 – Jumper J4 Settings for Analog Input Speed Reference
2.6.1.2 Setting the Analog Output Jumper (J17)
Jumper J17 is the analog output jumper. This jumper selects either a 0-10 VDC or
4-20 mA scaled signal output that is programmable to be proportional to either speed
or torque using parameter P.012. Refer to the LiquiFlo Software Reference manual for
more information about this parameter.
The jumper only selects a 0-10 VDC source voltage or 4-20 mA sink current to
represent speed or torque. Note that the 4-20 mA current selection requires a power
supply for operation as shown in table 7.8, terminals 10 and 11.
Use the following procedure to set jumper J17:
0-20 mA
About the Drive
ATTENTION:DC bus capacitors retain hazardous voltages after input
power has been disconnected. After disconnecting input power, wait five
!
Step 1. Turn off input power to the drive and wait five minutes.
Step 2. Open the door of the enclosure.
Step 3. Verify that the DC bus voltage is zero by following the procedure in section
Step 4. Locate jumper J17 on the Regulator board. Refer to figure 2.5.
Step 5. Locate pin 1 on jumper J17. Move the jumper to the desired setting as shown
Step 6. Close the door of the enclosure.
(5) minutes for the DC bus capacitors to discharge and then check the
voltage with a voltmeter to ensure the DC bus capacitors are discharged
before touching any internal components. Failure to observe this
precaution could result in severe bodily injury or loss of life.
9.3.
in figure 2.7.
2-11
Step 7. Reapply input power.
Step 8. Verify that parameter P.012 is set correctly for either speed or current.
Voltage Output Option
Pins 2-3
+10 VDC
J17J17
(default)
Figure 2.7 – Jumper J17 Settings for Analog Outputs
Current Output Option
Pins 1-2
4-20 mA
2.6.2 Wiring the Regulator Board Terminal Strip
The terminal strip on the Regulator board provides terminals for connecting customer
I/O devices. See figures 2.5 and 2.8. The following terminals are provided:
• Terminals 1-3: RS-232 connections
• Terminals 4-9: encoder connections
• Terminals 10-11: analog output connections
• Terminals 12-15: analog speed/torque reference connections
• Terminals 16-25: 24 VDC digital input connections
• Terminal 26: no connection
• Terminal 27: 24 VDC common
• Terminals 28-31: status relay connections
See chapter 7 for a complete description of, and how to wire, all of the signals
available through the Regulator board terminal strip.
2-12
LiquiFlo AC Power Modules, Hardware Reference Version 6.4
The Regulator board contains a 9-pin D-shell RS-232 communication port (J8). This
port provides RS-232 communication between the LiquiFlo drive and a personal
computer running the Control and Configuration (CS3000) software. See
Refer to instruction manual D2-3348 for more information about the CS3000 software.
2.6.4 RMI Board Connector
The flat-ribbon cable connector (J3) on the left side of the Regulator board is a parallel
bus connection port that is used on LiquiFlo drives for the Remote Meter Interface
(RMI) board.
Isolated Reference Voltage
VDC Speed Reference
Ma Speed Reference
Isolated Reference Gnd
+24 VDC
Digital Input 8 (Remote/Local)
Analog Meter Output
Regulator Common
Phase B Not
Regulator Common
10121114131517161822
Analog
Output
Analog Speed
Reference
Digital Input 7 (Ramp1/Ramp2)
Configurable
(Isolated 24 VDC)
Digital Input 6 (Forward/Reverse)
Function Loss
Run / Jog
20
21
Digital Inputs
Stop
Reset
Factory
Installed
Jumper
Start
242325
+24 VDC Common
No Connection
+24 VDC Common
Status Relays
N.O. Relay Contact
N.C. Relay Common
N.C. Relay Contact
31
2927262830
figure 2.5.
N.O. Relay Common
About the Drive
The RMI board provides an extended set of terminal strip inputs and outputs for the
LiquiFlo drive. When the drive control source is the terminal strip (P.000 = rE), the RMI
board can be used to provide additional speed reference selections. The RMI board
also provides an outer PI regulator that is used to adjust trim. An optional adjustable
torque (vector) or current (V/Hz) limit is available using the RMI board's analog or
frequency input. See section 2.7 for a more detailed description of the RMI board.
Refer to section 7.4 for a detailed description of the RMI terminal strip signals, and
how to wire the RMI board.
The J3 connector can also be used to provide a means of attaching optional boards
such as the DeviceNet
™
Option board, the AutoMax™ Network Option board, or
similar boards to the LiquiFlo drive. Note that you must first remove the RMI board
before a communication board can be added to the LiquiFlo drive.
2-13
Refer to the appropriate board instruction manual for more information. Refer to
section 2.8 of this manual for more information on optional drive kits.
2.6.5 Operator Interface Module Connector
Flat-ribbon connector J7 provides a means of attaching the optional Operator
Interface Module (OIM). The OIM is available for use as a remote keypad for the
LiquiFlo drive. Refer to the OIM instruction manual (D2-3342) for more information.
2.6.6 Keypad/Display
The front panel keypad/display is used to program and operate the LiquiFlo drive. See
figure 2.9. The four-character display is used to indicate drive parameters, parameter
values, and fault codes. The fourteen single LEDs indicate drive status and mode, as
well as identifying drive outputs whose values are displayed on the four-character
display.
Refer to the LiquiFlo Software Start-Up and Reference manual for more information.
Drive Status LEDs
Monitor Mode LEDs
Password LED
Display
Stop/Reset
Key
Keypad
Start Key
2-14
Figure 2.9 – Keypad/Display
LiquiFlo AC Power Modules, Hardware Reference Version 6.4
2.7RMI Board Description
The following signals are available at the RMI board terminal strip. Refer to figure 2.10
for terminal identification. For a detailed description of the RMI board signals, refer to
section 7.4.
2.7.1 Digital Inputs
Four 24 volt DC digital inputs provide additional speed reference options. The inputs
are active high. A 24 VDC supply is provided by the RMI board for use with the digital
inputs. The supply is short circuit- and overvoltage-protected.
2.7.2 Digital Outputs
Four 24 volt digital outputs are turned on and off as a result of data comparisons in the
drive. All digital outputs are source-driven (active high with common ground) and short
circuit-protected. Each output has an adjustable time delay that can be programmed
as an on-delay or an off-delay. An option to select an external 24 volt supply for
increased current capability at the outputs is jumper-selectable.
2.7.3 Relay Outputs
Three relay outputs can be turned on and off as a result of data comparisons in the
drive. Each output has an adjustable time delay that can be programmed as an
on-delay or an off-delay. All contacts are rated at 2
A, 24 VDC or 250 VA, 120 VAC.
2.7.4 Analog Input
The analog input is based on a 10-bit analog-to-digital (A/D) converter and is
jumper-selected between 0 to 10 volts or 0 to 20 mA. Separate connection terminals
are provided for voltage input and current input. The inputs are overvoltage-protected.
Offset and gain are computed by software.
2.7.5 Analog Outputs
Three analog output channels can be configured. The outputs are short circuit
protected. The output value is modulated over four 1 msec scans to provide 10-bit
data resolution.
2.7.6 Frequency Input
The frequency input operates from 0 to 200 kHz, 15 VDC. The input is single-ended
and uses the same common as the analog input.
About the Drive
2-15
2.7.7 Wiring the RMI Board Terminal Strip
ATTENTION:You are responsible for conforming with all applicable local,
national, and inter national codes. Failure to obser ve this precaution could
!
Refer to figure 2.10 for the signal and control I/O terminal connections on the RMI
board. terminal strip connections and related parameters. Refer to section 7.4 for
descriptions of, and how to wire, all RMI board terminal strip connections.
result in damage to, or destruction of, the equipment.