Yaskawa 686SS5 User Manual
VARISPEED-686SS5
YASKAWA
INSTRUCTION MANUAL
SUPER-ENERGY SAVING VARIABLE SPEED DRIVE (VS-686SS5)
MODEL: CIMR-SSA
200V CLASS 0.4 to 75kW (1.2 to 110kVA)
400V CLASS 0.4 to 300kW (1.4 to 460kVA)
Upon receipt of the product and prior to initial operation, read these instructions
thoroughly, and retain for future reference.
REFERENCE
VARISPEED-686SS5 DESCRIPTIVE MANUAL FOR CONSTANTS (TOE-S686-15.2)
YA S K A WA
MANUAL NO. TOE-S686-15B
PREFACE
The VS-686SS5 inverter is intented for use only with YASKAWA’s SS motor drive.
This instruction manual describes installation, maintenance and inspection,
troubleshooting, and specifications of the VS-686SS5. Read this instruction manual
thoroughly before operation.
YASKAWA ELECTRIC CORPORATION
General Precautions
S Some drawings inthis manual are shown with the protective cover or shields removed, in order to
describe detail with more clarity. Make sure all covers and shields are replaced before operating
this product.
S This manual may be modified when necessary because of improvement of the product, modifica-
tion, or changes in specifications.
Such modifications are denoted by a revised manual No.
S To order a copy of this manual, if your copy has been damaged or lost, contact your YASKAWA
representative.
S YASKAWA is not responsible for any modification of the product made by the user,since that will
void your guarantee.
3
NOTES FOR SAFE OPERATION
Read this instruction manual thoroughly before installation, operation, maintenance or inspection of
the VS-686SS5. In this manual, NOTES FOR SAFE OPERATION are classified as “WARNING”
or “CAUTION.”
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury
to personnel.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury to personnel and damage to equipment.
It may also be used to alert against unsafe practices.
Even items described in
case, follow these important notes.
NOTE
: These are steps to be taken to insure proper operation.
CAUTION
may result in a vital accident in some situations. In either
4
NOTES FOR SAFE OPERATION
NOTES ON USE
WARNING
The SS5 motor is a synchronous motor equipped with a built-in, high performance magnet as a rotor.
The SS5 motor terminals continue to produce high voltage whenever the motor is rotating even if
inverter power is OFF. Observe the following when hadling the inverter.
S
Make sure the motor is stopped when carrying out maintenance, inspection or wiring.
S
Connect a low-voltage manual starter to the inverter output side when the motor is rotated
by the load even if the inverter power is OFF.
CAUTION
S
If using a motor with a PG, be sure to confirm the safety and adjust the PG zero-pulse be-
fore starting any operation.
Failure to observe this caution may cause the torque to be insufficient, which may result in the
following motor malfunctions:
• The motor is pulled in the direction of the load.
• The motor rotates in reverse.
• The motor does not rotate.
• The motor suddenly accelerates.
S
Before starting operation, be sure to set the motor constants according to the motor name-
plate values.
Failure to observe this caution may cause torque insufficiency, which result in motor malfunctions:
• The motor is pulled in the direction of the load.
• The motor rotates in reverse direction.
• The motor does not rotate.
• The motor is suddenly accelerated.
RECEIVING
CAUTION
(Ref. page)
S
Do not install or operate any inverter which is damaged or has missing
parts.
Failure to observe this caution may result in personal injury or equipment damage. 14
5
INSTALLATION
CAUTION
S Lift the cabinet by the base. When moving the unit, never lift by the front
cover.
Otherwise, the main unit may be dropped causing damage to the unit. 16..........
S Mount the inverter on nonflammable material (i.e. metal).
Failure to observe this caution can result in a fire. 16............................
S When mounting units in an enclosure, install a fan or other cooling device
to keep the intake air temperature below 45_C.
Overheating may cause a fire or damage to the unit. 16........................
WIRING
WARNING
(Ref. page)
S Only commence wiringafter verifying that thepower supply is turnedOFF.
Failure to observe this warning can result in an electric shock or a fire. 20.........
S Wiring should be performed only by qualified personnel.
Failure to observe this warning can result in an electric shock or a fire. 20.........
S When wiring the emergency stop circuit, check the wiring thoroughly
before operation.
Failure to observe this warning can result in personal injury. 20.................
S Make sure to ground the ground terminal .
(Ground resistance
200V class: 100Ω or less, 400V class: 10Ω or less)
Failure to observe this warning can result in an electric shock or a fire. 24.........
(Ref. page)
6
NOTES FOR SAFE OPERATION
CAUTION
S Do not connect the other type of motor (i.e. induction motor). The
VS-686SS5 inverter is exclusive-use for SS5 motor drive.
Failure to observe this caution can result in inverter damage. 20.................
S Verify that the inverter rated voltage coincides with the AC power supply
voltage.
Failure to observe this caution can result in personal injury or a fire. 20...........
S Do not perform a withstand voltage test of the inverter.
It may cause semi-conductor elements to be damaged. 20......................
S To connect a braking resistor, braking resistor unit or braking unit, follow
the procedures described in APPENDIX 3.
Improper connection may cause a fire. 20..................................
S Tighten terminal screws to the specified tightening torque.
Failure to observe this caution can result in a fire. 20..........................
(Ref. page)
S Never connect the AC main circuit power supply to output terminals U, V
and W.
The inverter will be damaged and invalidate the guarantee. 24.................
S (Standard connection)
Be sure to connect the motor leads to the correct output terminals:
Motor lead U to output terminal U,
Motor lead V to output terminal V, and
Motor lead W to output terminal W.
Failure to observe this caution may cause the motor to run unusual way such as in
reverse. 24...........................................................
S With the standard connection for the output terminals, the motor rotates
counterclockwise as viewed from the load side in a forward operation.
To rotate the motor clockwise in a forward operation, connect the output
terminals as refered in Appendix 6. 24...................................
7
OPERATION
WARNING
S Only turn ON the input power supply after replacingthe front cover. Do not
remove the cover while current is flowing.
Failure to observe this warning can result in an electric shock. 38................
S When the retry function (L5-02) is selected, do not approach the inverter
or the load, since it may restart suddenly after being stopped.
(Construct machine system, so as to assure safety for personnel, even if the
inverter should restart.)
Failure to observe this warning can result in personal injury. 38.................
S Since the stop button can be disabled by a function setting, install a sepa-
rate emergency stop switch.
Failure to observe this warning can result in personal injury. 38.................
S If an alarm is reset with the operation signal ON, the inverter restarts auto-
matically. Only reset the alarm after verifying that the operation signal is
OFF.
Failure to observe this warning can result in personal injury. 38.................
(Ref. page)
S When adjusting PG zero-pulse, disconnect the motor from the machine.
The motor rotates automatically during adjustment. 49....................
S When PG zero-pulse adjustment is completed, “End” is displayed on the
digital operator. Do not touch it until it has come to a complete stop.
The motor starts and stops repeatedly when adjustments are made. 49.......
CAUTION
S Never touch the heatsink or discharging resistor since the temperature is
very high.
Failure to observe this caution can result in harmful burns to the body. 3 8.........
S Since it is easy to change operation speed from low to high speed, verify
the safe working range of the motor and machine before operation.
Failure to observe this caution can result in personal injury and machine damage. 38..
S Install a holding brake separately if necessary.
Always construct the external sequence to confirm that the holding
brake is activated in the event of an emergency, a power failure, or an
abnormality in the inverter occuring.
Failure to observe this caution can result in personal injury. 38..................
(Ref. page)
S If using with an elevator, take safety measures on the machine’s side to
prevent the elevator from dropping.
Failure to observe this caution may result in personal injury. 38.................
S Do not change signals during operation.
The machine or the inverter may be damaged. 38.............................
8
NOTES FOR SAFE OPERATION
CAUTION
S All the constants of the inverter have been preset at the factory. Do not
change the settings unnecessarily.
The inverter may be damaged. For supply voltage, follow Par. 4.2. 38............
S Be sure to set the motor constants in accordance with the values listed on
the motor nameplate values. 38........................................
Failure to observe this caution may cause the torque to be insufficient, which
may result in the following motor malfunctions:
• The motor is pulled in the direction of the load.
• The motor rotates in reverse.
• The motor does not rotate.
• The motor suddenly accelerates.
S
Besure to set themotorconstants before the initialoperation and after
replacement of the motor. Reconfirm the motor constants after they
have been set.
Failure to observe this caution may result in motor malfunctions such as
sudden acceleration. 44..............................................
(Ref. page)
S In the following cases when under flux vector control, be sure to adjust
the PG zero-pulse as described in 4.3 (3) (e) PG Zero-pulse Adjustment: 44..
• Before initial operation.
• After replacing the motor.
• After replacing the PG.
S Verify that digital operator STOP LED is ON before checking motor speed
detection. 48........................................................
S Verify that nothing is caught on the shaft or coupling. 48...................
S If the constant b1-06 is set to 1 and the run command is ON, the motor will
start immediately if the following operations are done. Confirm the safety if such operation is required.
•
The operation mode is switched from LOCAL to REMOTE.
•
The power supply is turned ON.
Failure to observe this caution may result in personal injury. 71.................
S Confirm safety. 49....................................................
• Is the motor disconnected from the machine?
• Is the lock key disconnected from the machine?
• Are there any persons or objects near the motor shaft?
• Has the motor come to a complete stop?
9
MAINTENANCE AND INSPECTION
WARNING
S Never touch high-voltage terminals in the inverter.
Failure to observe this warning can result in an electric shock. 65................
S Replace all protective covers before powering up the inverter. To remove
the cover, make sure to shut OFF the molded-case circuit breaker.
Failure to observe this warning can result in an electric shock. 65................
S Perform maintenance or inspection only after verifying that the CHARGE
LED goes OFF, after the main circuit power supply is turned OFF.
The capacitors are still charged and can be dangerous. 65......................
S Only authorized personnel should be permitted to perform maintenance,
inspections or parts replacement.
[Remove all metal objects (watches, bracelets, etc.) before operation.]
(Use tools which are insulated against electrical shock.)
Failure to observe this warning can result in an electric shock. 65................
(Ref. page)
CAUTION
(Ref. page)
S The control PC board employs CMOS ICs. Do not touch the CMOS ele-
ments.
They are easily damaged by static electricity. 65.............................
S Do not connect or disconnect wires or connectors while power is applied
to the circuit.
Failure to observe this caution can result in personal injury. 65..................
OTHERS
WARNING
S Never modify the product.
Failure to observe this warning can result in an electrical shock or personal injury and will invalidate the guarantee.
10
NOTES FOR SAFE OPERATION
WARNING LABEL
A warning label is displayed on the front cover of the inverter, as shown below. Follow these instructions when handling the inverter.
Warning Label
Model CIMR-SSA23P7
WarningLabel
WARNING
May cause injury or electric shock.
Please follow the instructions in the manual before
installation or operation.
Disconnect all power before opening front cover of unit.
Wait 1 minute until DC Bus capacitors discharge.
Use proper grounding techniques.
Make sure that the motor has stopped and voltage
between terminals U-V, U-W, and V-W is “0 volt” before
maintenance, inspection, or wiring.
11
CONTENTS
NOTES FOR SAFE OPERATION 4......................................
1 RECEIVING 14.....................................................
1.1 INSPECTION CHECKPOINTS 14............................................
1.2 IDENTIFYING THE PARTS 15...............................................
2 INSTALLATION 16...................................................
2.1 REMOVING AND REPLACING THE DIGITAL OPERATOR 16...................
2.2 REMOVING AND REPLACING THE FRONT COVER 17........................
2.3 CHOOSING A LOCATION TO MOUNT THE INVERTER 18......................
2.4 CLEARANCES 19.........................................................
3 WIRING 20.........................................................
3.1 CONNECTION WITH PERIPHERAL UNITS 21................................
3.2 CONNECTION DIAGRAM 22................................................
3.3 WIRING THE MAIN CIRCUIT 24.............................................
3.4 WIRING THE CONTROL CIRCUIT 36........................................
3.5 WIRING INSPECTION 37...................................................
4 OPERATION 38.....................................................
4.1 TEST RUN CHECKPOINTS 39..............................................
4.2 SETTING THE LINE VOLTAGE USING JUMPER
4.3 TEST RUN 40.............................................................
(FOR 400V CLASS 18.5kW AND ABOVE) 39..................................
5 SETTING OPERATION CONDITIONS 56...............................
5.1 DIGITAL OPERATOR KEY DESCRIPTION 56.................................
5.2 DIGITAL OPERATOR MODE SELECTION 57..................................
5.3 DRIVE MODE 58..........................................................
5.4 INITIALIZE MODE 61......................................................
5.5 PROGRAM MODE 63......................................................
5.6 MODIFIED CONSTANTS MODE 64..........................................
6 MAINTENANCE AND INSPECTION 65................................
6.1 PERIODIC INSPECTION 66.................................................
6.2 PARTS REPLACEMENT SCHEDULE (GUIDELINES) 66........................
7 TROUBLESHOOTING 67............................................
7.1 FAULT DIAGNOSIS AND CORRECTIVE ACTIONS 67..........................
7.2 MOTOR FAULTS AND CORRECTIVE ACTIONS 71............................
APPENDIX 1 SPECIFICATIONS 72......................................
APPENDIX 2 DIMENSIONS (mm) 74....................................
200 V/400 V Class Inverters of 15 kW and Lower 74...................................
200 V/400 V Class Inverters of 18.5 kW and Higher 74.................................
Mounting Dimensions for 400 V Class Inverters of 220 to 300 kW 74.....................
APPENDIX 3 TYPICAL CONNECTION DIAGRAM 76......................
3.1 BRAKING RESISTOR UNIT 76..............................................
3.2 BRAKING UNIT AND BRAKING RESISTOR UNIT 77...........................
3.3 THREE BRAKING UNITS IN PARALLEL 80...................................
3.4 WITH CONTACT OUTPUT, OPEN COLLECTOR OUTPUT 83...................
12
APPENDIX 4 CONSTANTS LIST 84....................................
APPENDIX 5 ERROR PROCESSING IN PG ZERO-PULSE
ADJUSTMENT 90.........................................
APPENDIX 6 ROTATION DIRECTION OF MOTOR 92.....................
APPENDIX 7 ZDEV CAUSES AND CORRECTIVE ACTIONS LIST 93........
Revision History
13
1 RECEIVING
S
Do not install or operate any inverter which is damaged or has missing
parts.
Failure to observe this caution may result in personal injury or equipment damage.
This chapter describes how to verify the inverter after delivery to the user.
1.1 INSPECTION CHECKPOINTS
(1)
Receiving Checkpoints
Table 1 Checkpoints
Checkpoints Description
Does the inverter model number correspond with
the purchase order?
Are any parts damaged?
Ishardwareproperly seatedand securelytightened?
Was an instruction manual received? VS-686SS5 instruction manual (No.: TOE-S686-15)
CAUTION
Check the model number on the nameplate on the side of the
VS-686SS5.
Visuallycheck the exterior and verify that there was no damage during
transport.
Remove inverter front cover.
Check all visible hardware with appropriate tools.
If any of the above checkpoints are not satisfactory, contact your YASKAWA representative.
(2)
Checking the Nameplate Data
(a)
Nameplate Data
Example of Japan domestic standard model CIMR-SSA2018 (200VAC 18.5kW)
Inverter Model
Input Spec.
Output Spec.
Lot No.
Serial No.
MODEL : CIMR− SSA2018 SPEC : 20180A
INPUT :
OUTPUT : AC 3PH 0− 230 V 30kVA 80A
LOT NO : MASS : 28kg
SER NO :
YASKAWA ELECTRIC CORPORATION
AC 3PH 200− 220 V 50Hz
200− 230 V 60Hz
JAPAN
Inverter Spec.
Mass
14
(b)
Model Designation
Inverter
VS-686SS5 Series
1 RECEIVING
CIMR − SS A 2 0P4
Symbol
A
Symbol
2 3-phase 200 V class
4 3-phase 400 V class
D 200 VDC class
E 400 VDC class
(c)
Specification Designation
Symbol
2 3-phase 200 V class
4 3-phase 400 V class
Symbol Max. applicable motor output
0P4 0.4kW
0P7
to
300
* For special specifications, a spec. sheet No. appears on the nameplate.
Specifications
Japan domestic standard
Voltage
Voltage
0.75kW
to
300kW
1.2 IDENTIFYING THE PARTS
2 0P4 1 A *
Symbol Max. applicable motor output
0P4 0.4kW
0P7
to
300
Revision symbol
Symbol
0 Open chassis type
1
Enclosed wall-mounted
type (NEMA 1)
0.75kW
to
300kW
Enclosure
Protective Cover (top/bottom)
4-Mounting Holes
Front Cover
Digital Operator
JVOP-132
Heatsink
Fig.1Configuration of VS-686SS5 (Model CIMR-SSA20P4)
15
2 INSTALLATION
CAUTION
S
Lift the cabinet by the base. When moving the unit, never lift by the front cover.
Otherwise, the main unit may be dropped causing damage to the unit.
S
Mount the inverter on nonflammable material (i.e. metal).
Failure to observe this caution can result in a fire.
S
When mounting units in an enclosure, install a fan or other cooling device to keep the intake air temperature below 45_C.
Overheating may cause a fire or damage to the unit.
This chapter describes the configuration, location and space when mounting the VS-686SS5.
2.1 REMOVING AND REPLACING THE DIGITAL OPERATOR
Remove and replace the digital operator as follows.
(1)
Removing the Digital Operator
Front Cover
Digital Operator
Fig.2Removing the Digital Operator
Push the digital operator lever in the direction
2
1
shown by arrow 1 and lift the digital operator
in the direction shown by arrow 2 to remove
the digital operator from the front cover.
16
(2)
Replacing the Digital Operator
Digital Operator
1
Front Cover
Fig.3Replacing the Digital Operator
2 INSTALLATION
Engage the digital operator on claws A in the
direction shown byarrow 1 and then on claws
2
B in the direction shown by arrow 2 to lock
the digital operator.
Claws A
Claws B
NOTE
Never fit the digital operator in any other direction or by any other method.
The digital operator will not be connected to the inverter.
2.2 REMOVING AND REPLACING THE FRONT COVER
To remove the front cover, first move the digital operator in the direction shown by arrow 1. (See Par.
2.1.) Then squeeze the cover in the direction shown by arrows 2 on both sides and lift in the direction
shown by arrow 3.
1
Front Cover
2
3
2
Fig.4Removing and Replacing the Front Cover
17
NOTE
Do not replace the front cover with the digital operator connected. The digital operator will not
be connected to the inverter. Replace the front cover first and then install the digital operator
on the cover. See Par. 2.1 for replacing the digital operator.
2.3 CHOOSING A LOCATION TO MOUNT THE INVERTER
To ensure proper performance and long operating life, follow the recommendations below when
choosing a location for installing the VS-686SS5. Make sure the inverter is protected from the
following conditions:
V Extreme cold and heat.
Use only within ambient temperature range: -10_ C to +40_C
V Rain, moisture. (For enclosed wall-mounted type)
V Oil sprays, splashes
V Salt spray.
V Direct sunlight. (Avoid using outdoors.)
V Corrosive gases or liquids.
V Dust or metallic particles in the air. (For enclosed wall-mounted type)
V Physical shock, vibration.
V Magnetic noise. (Example: welding machines, power devices, etc.)
V High humidity.
V Radioactive materials.
V Combustibles: thinners, solvents, etc.
18
2.4 CLEARANCES
Install the VS-686SS5 vertically and allow sufficient clearances for effective cooling as shown in Fig.
5.
2 INSTALLATION
50 mm or more
*
30 mm or more
*
50 mm or more
(a) Front View
Fig.5Clearances
Air
120 mm or more
30 mm or more
120 mm or more
Air
(b) Side View
NOTE
1. The clearances required at top/bottom and both sides are common in open chassis type
(IP00) and enclosed wall-mounted type (IP20).
2. Remove the top and bottom covers to use the open chassis type of 15kW or less.
3. When installing the models of 30kW or more equipped with eyebolts, extra spacing will
be required on either side. For detailed dimensions, contact your YASKAWA representative.
4. For the external dimensions and mounting dimensions, refer to APPENDIX 2 “DIMEN-
SIONS.”
5. Allowable intake air temperature to the inverter:
Open chassis type : -10_C to +45_C
Enclosed wall-mounted type : -10_C to +40_C
6. Ensure sufficient space for the sections at the upper and lower parts marked with ∗ in order
to permit the flow of intake/exhaust air to/from the inverter.
19
3 WIRING
S
S
S
S
S
WARNING
Only commence wiring after verifying that the power supply is turned OFF.
Failure to observe this warning can result in an electric shock or a fire.
Wiring should be performed only by qualified personnel.
Failure to observe this warning can result in an electric shock or a fire.
When wiring the emergency stop circuit, check the wiring thoroughly before operation.
Failure to observe this warning can result in personal injury.
CAUTION
Do not connect the other type of motor (i.e. induction motor). The VS-686SS5 inverter is
exclusive-use for SS5 motor drive.
Failure to observe this caution can result in inverter damage.
Verify that the inverter rated voltage coincides with the AC power supply voltage.
Failure to observe this caution can result in personal injury or a fire.
S
Do not perform a withstand voltage test of the inverter.
It may cause semi-conductor elements to be damaged.
S
To connect a braking resistor, braking resistor unit or braking unit, follow the procedures
described in APPENDIX 3.
Improper connection may cause a fire.
S
Tighten terminal screws to the specified tightening torque.
Failure to observe this caution can result in a fire.
This chapter describes the main circuit wiring and the control circuit wiring of the VS-686SS5.
20
3.1 CONNECTION WITH PERIPHERAL UNITS
The following shows standard connection of the VS-686SS5 with peripheral units.
Power Supply
Molded-case Circuit
Breaker or Ground
Fault Interrupter
Magnetic Contactor
AC Reactor
3 WIRING
Input Noise Filter
VS-686SS5
Output Noise Filter
Low-voltage Manual
Starter
(Used when the motor
is rotated by the load.)
DC Reactor
Grounding
Motor
Grounding
Fig.6Connection with Peripheral Units
21
3.2 CONNECTION DIAGRAM
Below is a connection diagram of the main circuit and control circuit. The example shows the models
CIMR-SSA2018 to -SSA2075 (200V class 18.5 to 75kW). Using the digital operator, the motor can
be operated by wiring the main circuit only.
2MCCB
3-Phase
Power Supply
200 to 230V
50/60 Hz
2MCCB
Overload Relay Trip
Contact of Braking Resistor Unit
Overload Relay Trip Contact of
Motor Cooling Fan
1
R
S
T
THRX
12
2
MC
OFF
1MCCB
ON MC
MC
20
18
SA
THRX
SA
TRX
SA
TRX
Fault
Contact
MC
Overload Relay
Trip Contact
Braking Unit
R1
S1
T1
¨ 3
R
S
T
VS-686SS5
Cooling Fan
r
M
¨
PG-X2
3
Level
Detector
©
(E)
4
©
U
V
W
1
2
4
5
6
7
8
9
1
2
3
4
5
6
7
12
¨
P
©
B
Braking Resistor
Unit
Low-voltage Manual Starter
Ground (100 Ω or less)
TA1
P
P
P
TA3
TA2
P
P
P
P
Shielded Wire
Pulse A
Pulse B
Pulse Z
Motor
R1
S1
T1
FV
FW
Fan
IM
Cooling
FU
U
V
M
W
D
F
A
H
B
PG
I
C
J
Pulse Monitor Output
External Speed Reference
Factory
Setting
2kΩ
Forward
Run/Stop
Reverse
Run/Stop
External
Fault
Fault Reset
Multi-step Speed Setting 1
(Master/Aux Change)
Multi-step Speed
Setting 2
Jog Reference
External
Baseblock
34
2kΩ
0 to +10 V
4 to 20mA
0 to +10 V
P
P
0V
1 Forward Run
when CLOSED
2 Reverse Run
when CLOSED
3
4
5
Multi-function
Contact Input
6
7
8
Sequence Common
11
Terminal (0V)
12 Shield Sheath
Connection
Terminal
15 Speed Setting Power
Supply +15 V 20 mA
13 Master Speed Ref.
0 to 10V (20kΩ)
14 Master Speed Ref.
4 to 20mA (250Ω)
16 Multi-function Analog
Input 0 to 10V (20kΩ)
P
17
(Aux. Speed Ref. at Factory
Setting)
0V
33 Speed Setting Power
Supply -15V 20mA
23
21
22
−
(12)
18
18
19
20
20
9
Multi-function Contact Output
250 VAC 1 A or less
10
30 VDC 1 A or less
(Signal during Running at Factory Setting)
25
26
27
Multi-function Analog Monitor 2
+
-10 to +10 V 2mA
A
(Output Current at Factory Setting
−
0 to +10 V)
Frequency Meter Calibration Resistor
RV30YN20S 20kΩ
Multi-function Analog Monitor 1
-10 to +10 V 2mA
+
(Rotation Speed at Factory Setting
N
0 to +10 V)
Fault Contact Output
Contact Capacity:
250 VAC 1A or less
30 VDC 1A or less
Open Collector 1
(Zero Speed Signal at
Factory Setting)
Open Collector 2
(Speed Agree Signal
at Factory Setting)
Multi-function
Output Common
Multi-function
Open Collector
Output
48 V 50 mA or
less
22
7 Connection Diagram
Fig.
3 WIRING
NOTE
NOTE
Layout of control circuit terminals
123 4567 8
1.
13 14 15 16 17
indicates shielded wires and indicates twisted-pair shielded wires.
25 26 27 33 18 19 2011 12(G)
21 22 23 9 10
2. Either control circuit terminal 13 or 14 can be used. (For simultaneous inputs, the two
signals are added internally.)
3. Control circuit terminal 15/33 of +15 V/-15 V has a maximum output current capacity of
20 mA.
4. Multi-function analog output should be used for monitoring meters (e.g. output frequency
meter) and should not be used for feedback control system. Use analog monitor cards
(Model AO-12) for the control system, for a more accurate signal.
5. When using a braking resistor unit, set the constant L3-01 to “0” (overvoltage prevention
level is “disabled”). If it is not changed, the motor may not stop within the set decel time.
6. When using model ERF braking resistor (inverter-mounted type), set the constant L8-01
to “01” (braking resistor protection selection to “enabled”). If it is not changed, the braking resistor cannot be protected.
7. When installing a DC reactor (optional for models of 15kW or below), remove the short-
circuit bar between ¨1 and ¨2 terminals and connect a DC reactor with the terminals.
8. The models of 200V 30 to 75kW or 400V 55 to 160kW cannot be connected with DC pow-
er supply.
9. Once external baseblock signal is turned ON, do not release until a motor stops.
23
3.3 WIRING THE MAIN CIRCUIT
S Make sure to ground the ground terminal .
(Ground resistance 200V class: 100Ω or less, 400V class: 10Ω or less)
Failure to observe this warning can result in an electric shock or a fire.
S Never connect the AC main circuit power supply to output terminals U, V and W.
The inverter will be damaged and invalidate the guarantee.
S (Standard connection)
Be sure to connect the motor leads to the correct output terminals:
Motor lead U to output terminal U,
Motor lead V to output terminal V, and
Motor lead W to output terminal W.
Failure to observe this caution may cause the motor to run unusual way such as in reverse.
S With the standard connection for the output terminals, the motor rotates counterclock-
wise as viewed from the load side in a forward operation. To rotate the motor clockwise
in a forward operation, connect the output terminals as refered in Appendix 6.
WARNING
CAUTION
(1) Wiring Precautions for Main Circuit Input
(a) Installation of Molded-case Circuit Breaker (MCCB)
Make sure to connect MCCBs or fuses between the AC main circuit power supply and
VS-686SS5 input terminals R, S and T to protect wiring.
(b) Installation of Ground Fault Interrupter
When connecting a ground fault interrupter to input terminals R, S and T, select one that
is not affected by high frequency.
Examples: NV series by Mitsubishi Electric Co., Ltd. (manufactured in or after1988),
EG, SG series by Fuji Electric Co., Ltd. (manufactured in or after 1984)
24
3 WIRING
(c) Installation of Magnetic Contactor
Inverter can be used without a magnetic contactor (MC) installed at the power supply side.
When the main circuit power supply is shut OFF in the sequence, a magnetic contactor (MC)
can be used instead of a molded-case circuit breaker (MCCB). However, when a magnetic
contactor is switched OFF at the primary side, regenerative braking does not function and
the motor coasts to a stop.
S The load cannot be operated/stopped by opening/closing the magnetic contactor at the
power supply side.
S When using a brakingresistor unit, use a sequencer to break power supply side on over-
load relay trip contact. If the inverter malfunctions, the braking resistor unit may be
burned out.
(d) Terminal Block Connection Sequence
Input power supply phases can be connected to any terminal regardless of the order of R,
S and T on the terminal block.
(e) Installation of Reactor
When connecting an inverter (200V/400V 15kW or less) to a large capacity power supply
transformer (600kVA or more), or when switching a phase advancing capacitor, excessive peak current flows in the input power supply circuit, which may damage the converter
section. In such cases, install a DC reactor (optional) between inverter ¨1 and ¨2 terminals or an AC reactor (optional) on the input side. Installation of a reactor is effective for
improvement of power factor on the power supply side.
(f) Installation of Surge Suppressor
For inductive loads (magnetic contactors, magnetic relays, magnetic valves, solenoids,
magnetic brakes, etc.) connected near the inverter, use a surge suppressor simultaneously.
(g) Prohibition of Installation of Phase Advancing Capacitor
If a phase advancing capacitor or surge suppressor is connected in order to improve the
power factor, it may become overheated and damaged by inverter high harmonic components. Also, the inverter may malfunction because of overcurrent.
(h) Using Input Noise Filters
Noise filters can reduce a higher harmonics noise leaking from the drive unit to the power
line.
S Example 1
Power
Supply
MCCB
MCCB
Noise
Filter
VS-686SS5
Other
Control
Device
Fig. 8 Using Input Noise Filter (Example 1)
Use an exclusive noise filter
specified for the inverter.
M
25
S Example 2
Power
Supply
Power
Supply
MCCB
MCCB
MCCB
MCCB
General
Noise
Filter
General
Noise
Filter
VS-686SS5
Other
Control
Device
VS-686SS5
Other
Control
Device
Fig. 9 Using Input Noise Filter (Example 2)
S Example 3
Power
Supply
MCCB
VS-686SS5
A general-purpose noise
filter will not effective.
M
M
When one inverter is installed
on one power line, a noise fil-
M
ter is not required.
Fig. 10 Using Input Noise Filter (Example 3)
S Example 4
Power
Supply
MCCB
Isolating Transformer
VS-686SS5
Other
Control
Device
Fig. 11 Using Input Noise Filter (Example 4)
By installing an isolating trans-
former on the power side of
M
another control device, the
same result as with installing a
noise filter is achieved.
26
(2) Wiring Precautions for Main Circuit Output
(a) Connection of Terminal Block and Load
Connect output terminals U, V and W to motor lead wires U, V and W. For standard connections, be sure to connect the motor leads to the correct output terminals: motor lead U to
output terminal U, motor lead V to output terminal V, and motor lead W to output terminal
W.
With the standard connection for the output terminals, the motor rotates counterclockwise
as viewed from the load side in a forward operation. To rotate the motor clockwise in a forward operation, connect the output terminals as refered in Appendix 6.
(b) Strict Prohibition of Connection of Input Power Supply to Output Terminals
3 WIRING
Never connect the input
power supply to output terminals U, V and W.
(c) Installation of Low-voltage Manual Starter
Make sure to connect a low-voltage manual starter to the inverter output side when the motor is rotated by the load even if the inverter power supply is OFF. Turn OFF the starter before performing maintenance/inspection or wiring.
Example: LB series of AICUT manufactured by Aisei
(d) Strict Prohibition of Short Circuiting or Grounding of Output Circuit
Never touch the output circuit directly or put the output line in contact with the inverter case.
Otherwise, it may cause an electric shock or grounding. In addition, never short circuit the
output line.
(e) Prohibition of Connection of Phase Advancing Capacitor or LC/RC Line Filter
Never connect a phase advancing capacitor or LC/RC line filter to the output circuit.
(f) Avoidance of Installation of Magnetic Starter
Do not connect a magnetic starter or magnetic contactor to the output circuit. If the load
is connected while the inverter is running, the inverter overcurrent protective circuit operates because of inrush current.
(g) Installation of Thermal Overload Relay
An electronic overload protective function is incorporated into the inverter. When using
a thermal overload relay, set inverter constant L1-01 to 0 (motor protection selection: disabled).
27
(h) Using Output Noise Filters
By installing a noise filter on the output side of the inverter, radio frequency interference
(RFI) and inductive noise are reduced.
Power
Supply
MCCB
VS-686SS5
Noise
Filter
Inductive
Noise
Signal Line
Control
Device
M
RFI Noise
AM Radio
Fig. 12 Using Output Noise Filter
Inductive noise: Noise coming on the signal line due to electromagnetic inductance can
cause malfunctioning of a control device.
RFI noise: Higher harmonics waves from the inverter or cable can interfere with radio
receiver.
(i) Countermeasures Against Inductive Noise
As described previously,a noise filter can be used to prevent inductive noise fromgenerated
on the output side. Alternatively, cables can be routed through a grounded metal pipe to
prevent inductive noise. Keeping the metal pipe at least 30 cm away from the signal line
considerably reduces inductive noise.
Power
Supply
MCCB
VS-686SS5
Metal Pipe
M
30 cm min.
Signal Line
Control
Device
Fig. 13 Countermeasures Against Inductive Noise
(j) Countermeasures Against RFI Noise
RFI noise is generated form the inverter as well as from the input andoutput lines. To reduce
RFI noise, install noise filters on both input and output sides, and also install in a totally enclosed steel box. The cable between the inverter and the motor should be as short as possible.
Power
Supply
MCCB
Noise
Filter
Steel Box
VS-686SS5
Noise
Filter
Metal Pipe
M
Fig. 14 Countermeasures Against RFI Noise
28
3 WIRING
(k) Wiring Distance between Inverter and Motor
If the total wiring distance between inverter and motor is excessively long and the inverter
carrier frequency (main transistor switching frequency) is high, harmonic leakage current
from the cable will adversely affect the inverter and peripheral devices.
Consider the wiring distance between inverter and motor when increasing the carrier frequency value. Carrier frequency can be set by constant C6-02.
Table 2 Wiring Distance between Inverter and Motor
Wiring Distance between
Inverter and Motor
(Set value of constant C6-02)
(3) Grounding
S Ground resistance
S Never ground the inverter in common with welding machines, motors, or other large-
S Use the ground wires described in Table5 or 6 and keep the length as short as possible.
S When using several inverter units side by side, ground the units as shown in Fig. 15,
Up to 50m From 50m to 100m More than 100m
Carrier Frequency
12kHz or less
(Max. 12)
8kHz or less
(Max. 8)
200V class : 100Ω or less, 400 V class : 1 0Ω or less.
current electrical equipment.
(a) or (b). Do not loop the ground wires as shown in (c).
(a) Acceptable
(b) Acceptable
(c) Not Acceptable
4kHz or less
(Max. 4)
Fig. 15 Grounding of Three Inverter Units
29
(4) Functions of Main Circuit Terminals
Max
Applicable
0
kW11to15kW
18
22kW30
kW
pppp y
p
C
C
C
u
g
(
)
DC
bus
terminals
DC
bus
terminals
g
Braking
unit
(¨1
and¨2
•
Braking
unit
provided)
Max
Applicable
0
kW
18
kW
160kW18
300
kW
g
C
Braking
unit
(
)
•
DC
bus
terminals
(¨1©)
(¨1and¨2
Braking
unit
(¨3
©
)
(¨2
terminal
not
Cooling
fan
power
Cooling
fan
power
supply
p
r-200:200to230VAC
input
The following table outlines the functions of the main circuit terminals. Wire according to each
terminal function.
Table 3 200V Class Terminal Functions
Models
CIMR-SSA
Max Applicable
Motor Output
R (L1)
S (L2)
T (L3)
U (T1)
V (T2)
W (T3)
B1
B2
©
¨ 1
¨ 2
¨ 3
r
20P4 to 27P5 201 1 to 2015 2018 to 2022 2030 to 2075
.4 to 7.5
Braking resistor unit
• DC reactor
(¨1-¨2)
• DC bus terminals
(¨1-©)
• DC reactor • DC bus terminals
(¨ 1-¨ 2)
• DC bus terminals
(¨ 1-© )
• Brakin
(¨3-©)
Ground terminal (Ground resistance : 100Ω or less)
Table 4 400V Class Terminal Functions
.5 to
Main circuit input power supply
Inverter output
(¨1-©)
• Braking unit
unit
(¨3-©)
Cooling fan power supply
to 75
• Braking unit
¨3-©
(¨1 and ¨2
terminals not
provided) *
Models
CIMR-SSA
Max Applicable
Motor Output
R (L1)
S (L2)
T (L3)
U (T1)
V (T2)
W (T3)
B1
B2
©
¨ 1
¨ 2
¨ 3
r
200
400
40P4 to 4015 4018 to 4045 4055 to 4160 4220 to 4300
.4 to15
Braking resistor unit
• DC reactor
(¨1-¨2)
• DC bus terminals
(¨1-©)
.5 to 45
Main circuit input power supply
Inverter output
• DC bus terminals
(¨1-©)
• Braking unit
-
-
Coolingfanpower
supply
Ground terminal (Ground resistance : 10Ω or less)
55 to
• Brakin
• Cooling fan power supply
unit
(¨3-© )
terminals not
provided)
(Control power supply)
r - 200 : 200 to 230 VAC in
r - 400 : 380 to 460 VAC input
*
5to
• DC bus terminals
¨1-©
• Braking unit
(¨3-© )
provided)
ut
* The models of 200V 30 to 75kW or 400V 55 to 160kW cannot be connected with DC power
supply. Terminal ¨3 is for exclusive use for connecting a braking unit. Do not connect DC
power supply to terminal ¨3.
30
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