5.5 Alarm Detection
YASKAWA ELECTRIC
TOEP C710687 02B FSDrive-MV1000 Instructions
167
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5
Digital Operator Display
Minor Fault Name
oL3
Overtorque 1
Drive output current (or torque in OLV, CLV, AOLV/PM, CLV/PM) exceeded the value set to
L6-02 for longer than the time set in L6-03.
Cause
Possible Solutions
Minor Fault Output
H2-
=10
Parameter settings are not appropriate for the
load.
Check parameters L6-02 and L6-03.
Yes
Fault on the machine side (e.g., machine is
locked up)
Check the status of the machine. Remove the cause of the fault.
Digital Operator Display
Minor Fault Name
oL4
Overtorque 2
Drive output current (or torque in OLV, CLV, AOLV/PM, CLV/PM) exceeded the value set to
L6-05 for longer than the time set in L6-06.
Cause
Possible Solutions
Minor Fault Output
H2-
=10
Inappropriate parameter settings
Check parameters L6-05 and L6-06.
Yes
Fault on the machine side (e.g., machine is
locked up)
Check the status of the machine. Remove the cause of the fault.
Digital Operator Display
Minor Fault Name
oL5
Mechanical Weakening Detection 1
Overtorque occurred, matching the conditions specified in L6-08.
Cause
Possible Solutions
Minor Fault Output
H2-
=10
Overtorque triggered mechanical weakening
detection level set to L6-08.
Determine the cause of mechanical weakening.
Yes
Digital Operator Display
Minor Fault Name
oS
Overspeed (for Control Mode with PG)
The motor speed feedback exceeded the F1-08 setting.
Cause
Possible Solutions
Minor Fault Output
H2-
=10
Overshoot is occurring.
Reduce the setting in C5-01 (ASR Proportional Gain 1) and increase the
setting in C5-02 (ASR Integral Time 1).
Yes
Inappropriate parameter settings.
Check the setting for the overspeed detection level and the overspeed
detection time (F1-08 and F1-09).
Digital Operator Display
Minor Fault Name
PASS
MEMOBUS/Modbus Comm. Test Mode Complete
Cause
Possible Solutions
Minor Fault Output
H2-
=10
MEMOBUS/Modbus test has finished
normally.
No measures (not an alarm.)
This verifies that the test was successful.
No
Digital Operator Display
Minor Fault Name
PGo
PG Disconnect (for Control Mode with PG)
Detected when no PG pulses are received for a time longer than setting in F1-14.
Cause
Possible Solutions
Minor Fault Output
H2-
=10
PG cable is disconnected.
Reconnect the cable.
Yes
PG cable wiring is wrong.
Correct the wiring.
PG encoder does not have enough power.
Make sure the correct power supply is properly connected to the PG
encoder.
PG encoder brake is clamped shut.
⇒
Ensure the motor brake releases properly
Digital Operator Display
Minor Fault Name
PGoH
PG Hardware Fault (detected when using a PG-X3 option card)
PG cable disconnection was detected.
Cause
Possible Solutions
Minor Fault Output
H2-
=10
PG cable is disconnected.
Reconnect the cable.
Yes
Summary of Contents for FSDrive-MV1000 Series
Page 8: ...8 YASKAWA ELECTRIC TOEP C710687 02B FSDrive MV1000 Instructions...
Page 106: ...3 9 Wiring Check 106 YASKAWA ELECTRIC TOEP C710687 02B FSDrive MV1000 Instructions...
Page 210: ...6 7 Spare Parts 210 YASKAWA ELECTRIC TOEP C710687 02B FSDrive MV1000 Instructions...
Page 222: ...B 1 European Standards 222 YASKAWA ELECTRIC TOEP C710687 02B FSDrive MV1000 Instructions...