332
YASKAWA
SIEPC71061737B GA800 Drive Technical Reference
Code
Name
Causes
Possible Solutions
oPr
Keypad Connection Fault
The keypad is not securely connected to the
connector on the drive.
Examine the connection between the keypad and the drive.
The connection cable between the drive and the
keypad is disconnected.
•
Remove the keypad and then reconnect it.
•
Replace the cable if damaged.
Note:
•
The drive detects this fault if these conditions are correct:
–
o2-06 = 1 [Keypad Disconnect Detection = Enabled]
.
–
b1-02 = 0 [Run Command Selection 1 = Keypad]
, or the drive is operating in LOCAL Mode with the keypad.
•
Do a Fault Reset to clear the fault.
Code
Name
Causes
Possible Solutions
oS
Overspeed
There is overshoot.
•
Decrease
C5-01 [ASR Proportional Gain 1]
and increase
C5-02
[ASR Integral Time 1]
.
•
Adjust the pulse train gain with
H6-02 to H6-05 [Pulse Train
Input Setting Parameters]
.
There is an incorrect number of PG pulses set in the
drive.
Set
H6-02 [Terminal RP Frequency Scaling]
to the pulse train
frequency during 100% reference (maximum motor rotation speed).
The
oS
detection level is set incorrectly.
Adjust
F1-08 [Overspeed Detection Level]
and
F1-09 [Overspeed
Detection Delay Time]
.
If the drive detects the fault at start or in the low
speed range (10% or less) and
n8-57 = 1 [HFI
Overlap Selection = Enabled]
for PM Control
methods, the high frequency injection gain is too
high.
•
Set
E5-xx [PM Motor Parameters]
correctly or do Rotational
Auto-Tuning.
•
Decrease the value of
n8-41 [HFI P Gain]
in 0.5 unit increments.
Note:
Set
n8-41 > 0.0
for IPM motors.
Note:
•
The drive detects this fault if the motor speed is more than the value set in
F1-08
for longer than
F1-09
.
•
Do a Fault Reset to clear the fault.
•
If the drive detects this fault, it will operate the motor as specified by the Stopping Method set in
F1-03 [Overspeed Detection Selection]
.
Code
Name
Causes
Possible Solutions
ov
Overvoltage
The deceleration time is too short and too much
regenerative energy is flowing back into the drive.
•
Set
L3-04 = 1 [Stall Prevention during Decel = General
Purpose]
.
•
Increase the values set in
C1-02, C1-04, C1-06, or C1-08
[Deceleration Times]
.
•
Connect a dynamic braking option to the drive.
•
Perform Deceleration Rate Tuning.
The acceleration time is too short.
•
Make sure that sudden drive acceleration does not cause the
fault.
•
Increase the values set in
C1-01, C1-03, C1-05, or C1-07
[Acceleration Times]
.
•
Increase the value set in
C2-02 [S-Curve Time @ End of Accel]
.
•
Set
L3-11 = 1 [Overvoltage Suppression Select = Enabled]
.
The braking load is too large.
Connect a dynamic braking option to the drive.
There are surge voltages in the input power supply.
Connect a DC link choke to the drive.
Note:
If you turn the phase advancing capacitors ON and OFF and use
thyristor converters in the same power supply system, there can
be surge voltages that irregularly increase the input voltage.
The drive output cable or motor is shorted to ground
(the current short to ground is charging the main
circuit capacitor of the drive through the power
supply).
1.
Examine the motor main circuit cable, terminals, and motor
terminal box, and then remove ground faults.
2.
Re-energize the drive.
The speed search-related parameters are set
incorrectly (this fault also occurs during recovery
from momentary power loss and after Auto Restarts).
•
Examine the settings for all speed search related parameters.
•
Set
b3-19 ≠ 0 [Speed Search Restart Attempts ≠ 0 times]
.
•
Adjust
b3-03 [Speed Search Deceleration Time]
.
•
Do Stationary Auto-Tuning for Line-to-Line Resistance and set
b3-24 = 1 [Speed Search Method Selection = Speed Estimation]
.
The power supply voltage is too high.
Decrease the power supply voltage to match the drive rated voltage.
The braking resistor or braking resistor unit wiring is
incorrect.
Correct wiring errors in the connection to the braking resistor or
braking resistor unit.
The encoder cable is disconnected or wired
incorrectly.
Examine for wiring errors or disconnected wires in the encoder
cable, and repair problems.
Noise interference along the encoder cable.
Isolate the encoder cable from the drive output line or a different
source of electrical interference.
Содержание GA800 Series
Страница 2: ...This Page Intentionally Blank 2 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 20: ...i 3 Warranty Information 20 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 30: ...1 3 Features and Advantages of Control Methods 30 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 58: ...2 9 Installation Methods 58 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 144: ...4 4 Start up Procedures 144 YASKAWA SIEPC71061737B GA800 Drive Technical Reference Figure 4 8 Basic Steps before Startup...
Страница 268: ...5 6 Safe Disable Input 268 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 306: ...6 3 MEMOBUS Modbus Communications 306 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 370: ...7 10 Troubleshooting Without Fault Display 370 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 426: ...8 7 Storage Guidelines 426 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...