YASKAWA Z1000U Series Quick Start Manual page 65

HOA Keypad Display
oFb03 to oFb11
oFb12 to oFb17
oFC00
oFC01
oFC02
oFC03 to oFC11
oFC12 to oFC17
oFC50 to oFC55
oH
oH1
oH3
oH4
oL1
oL2
oL3
oL4
oL5
oPr
ov
SCF
SEr
SoH
SrC
Srr
YASKAWA ELECTRIC TOEP C710636 11E Z1000U HVAC MATRIX Drive Quick Start Guide
Option card error occurred at Option Port CN5-B
Option Card Connection Error at Option Port CN5-C
Option compatibility error
Option Card Fault at Option Port CN5-C
Option not properly connected
Option Card Fault at Option Port CN5-C
Same type of option card is currently connected
Option Card Error Occurred at Option Port CN5-C
Option Card Error Occurred at Option Port CN5-C
Heatsink Overheat
The heatsink temperature exceeded the overheat pre-alarm level set to L8-02. The default value for L8-02 is determined
by drive model selection (o2-04).
Overheat 1 (Heatsink Overheat)
The heatsink temperature exceeded the drive overheat level. Overheat level is determined by drive capacity (o2-04).
Motor Overheat Alarm (PTC Input)
• The motor overheat signal to analog input terminal A1, A2, or A3 exceeded the alarm detection level.
• Detection requires setting multi-function analog inputs H3-02, H3-10, or H3-06 to E.
Motor Overheat Fault (PTC Input)
• The motor overheat signal to analog input terminal A1, A2, or A3 exceeded the fault detection level.
• Detection requires setting multi-function analog inputs H3-02, H3-10, or H3-06 to E.
Motor Overload
The electronic motor overload protection tripped
Overload
The thermal sensor of the drive triggered overload protection.
Overtorque Detection 1
The current has exceeded the value set for Torque Detection Level 1 (L6-02) for longer than the allowable time (L6-03).
Overtorque Detection 2
The current has exceeded the value set for Torque Detection Level 2 (L6-05) for longer than the allowable time (L6-06).
Mechanical Weakening Detection 1
Overtorque occurred, matching the conditions specified in L6-08.
External Digital Operator Connection Fault
The external operator has been disconnected from the drive.
Note: An oPr fault will occur when all of the following conditions are true:
• Output is interrupted when the operator is disconnected (o2-06 = 1).
• The Run command is assigned to the operator (b1-02 = 0 and LOCAL has been selected).
Control Circuit Overvoltage
Voltage in the control circuit has exceeded the overvoltage level.
• For 200 V class drives: approximately 450 V
• For 400 V class drives: approximately 900 V
Safety Circuit Fault
Safety Circuit Fault is detected.
Too Many Speed Search Restarts
The number of Speed Search restarts exceeded the value set to b3-19.
Snubber Discharge Resistor Overheat
Phase Order Detection Fault
The phase rotation direction for the input power supply changed.
Internal Resistance Fault
An operation failure occurred in the snubber discharge resistor circuit.
Fault Name
i.6 Troubleshooting
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