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YASKAWA
SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
371
Code
Name
Causes
Possible Solutions
The main circuit capacitors have become
unserviceable.
Examine
U4-05 [CapacitorMaintenance]
, and do maintenance on
the drive if its value is more than 90%.
•
Examine the input power for problems.
•
The alarm occurs frequently despite there being no problem
with the power supply, replace the control board or the drive.
For more information on replacing the control board, contact
Yaskawa or your nearest sales representative.
Note:
•
The drive detects this error if the DC bus voltage fluctuates abnormally while the motor is stopped.
•
If the drive detects this error, the terminal assigned to
H2-01 to H2-05 = 10 [MFDO Function Select = Alarm]
will be ON.
•
Use
L8-05 [Input Phase Loss Protect Sel]
to enable/disable
PF
detection.
Code
Name
Causes
Possible Solutions
PGo
Encoder (PG) Feedback Loss
The encoder cable is incorrectly wired or
disconnected.
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
The encoder is not receiving power.
Examine the encoder power supply.
The holding brake is stopping the motor.
Release the holding brake.
Note:
•
The drive detects this error if no encoder pulses for speed detection are received for a time longer than setting in
F1-14 [Encoder Open-Circuit Detect Time]
.
•
If the drive detects this error, the terminal assigned to
H2-01 to H2-05 = 10 [MFDO Function Select = Alarm]
will be ON.
•
If the drive detects this error, it will operate the motor as specified by the Stopping Method set in
F1-02 [PG Open Circuit Detection Select]
.
Code
Name
Causes
Possible Solutions
PGoH
Encoder (PG) Hardware Fault
The encoder cable is disconnected.
Correct any disconnected wires in the encoder cable.
Note:
•
If the drive detects this error, the terminal assigned to
H2-01 to H2-05 = 10 [MFDO Function Select = Alarm]
will be ON.
•
If the drive detects this error, it will operate the motor as specified by the Stopping Method set in
F1-02 [PG Open Circuit Detection Select]
.
Code
Name
Causes
Possible Solutions
rEvL
Rev Limit (rEvL)
The terminal assigned to
H1-xx = 33, 34 [MFDI
Function Select = Rev Limit (rEvL), Reverse Travel
Limit (N.C.)]
is input, the Run command has been
disabled.
Turn OFF the Travel Limit to input the Forward run command.
Note:
If the drive detects this error, the terminal assigned to
H2-01 to H2-05 = 10 [MFDO Function Select = Alarm]
will be ON.
Code
Name
Causes
Possible Solutions
rUn
Motor Switch during Run
The drive received a
Motor 2/3 Selection [H1-xx =
16 or 39]
during run.
Review the sequence to ensure that Motor 2/3 Selection is input
while the drive is stopped.
Note:
If the drive detects this error, the terminal assigned to
H2-01 to H2-05 = 10 [MFDO Function Select = Alarm]
will be ON.
Code
Name
Causes
Possible Solutions
SE
Modbus Test Mode Error
MEMOBUS/Modbus communications self-
diagnostics
[H1-xx = 67]
was done while the drive
was running.
Stop the drive and do MEMOBUS/Modbus communications self-
diagnostics.
Note:
If the drive detects this error, the terminal assigned to
H2-01 to H2-05 = 10 [MFDO Function Select = Alarm]
will be ON.
Code
Name
Causes
Possible Solutions
STo
Safe Torque OFF
Safe Disable inputs H1-HC and H2-HC are open.
•
Make sure that the Safe Disable signal is input from an
external source to terminal H1-HC and H2-HC.
•
When the Safe Disable function is not in use, connect
terminals H1-HC and H2-HC.
There is internal damage to the two Safe Disable
channels.
Replace the control board or the drive. For information about
replacing the control board, contact Yaskawa or your nearest sales
representative.
Note:
If the drive detects this error, the terminal assigned to
H2-01 to H2-05 = 10 [MFDO Function Select = Alarm]
will be ON.
Code
Name
Causes
Possible Solutions
SToF
Safe Torque OFF Hardware
One of the two terminals H1-HC or H2-HC
received the Safe Disable input signal.
The Safe Disable input signal is wired incorrectly.
•
Make sure that the Safe Disable signal is input from an
external source to terminal H1-HC or H2-HC.
•
When the Safe Disable function is not in use, connect
terminals H1-HC and H2-HC.
There is internal damage to one Safe Disable
channel.
Replace the control board or the drive. For information about
replacing the control board, contact Yaskawa or your nearest sales
representative.
Note:
If the drive detects this error, the terminal assigned to
H2-01 to H2-05 = 10 [MFDO Function Select = Alarm]
will be ON.
Summary of Contents for CR700
Page 1: ......
Page 244: ...3 13 Test Run Checklist 244 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual ...
Page 422: ...7 7 Storage Guidelines 422 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual ...
Page 426: ...8 2 Disposal Instructions 426 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual ...
Page 837: ...EZZ023535 2 35 1 Revision History Revision Revised Content Date First Edition 2017 08 ...
Page 872: ...EZZ023536 2 16 Revision History Revision Revised Content Date First Edition 2017 08 ...