10
Service
Line connection energy supply
Operating Instructions – MOVIPRO
®
PHC11A-..M1-..2A-A1/..
94
Fault memory
The fault memory (P080) stores the last 5 error messages (faults t-0 through t-4) of
the frequency inverter. The oldest error message is deleted whenever more than five
error messages have occurred.
The following information is stored when a fault occurs:
• Fault that has occurred
• Status of digital inputs/outputs
• Operating state of the inverter
• Inverter status
• Heat sink temperature
• Speed
• Output current
• Active current
• Unit utilization
• DC link voltage
• Hours of operation
• Enable hours
• Parameter set
• Motor utilization
Switch-off responses
The following switch-off responses occur in the frequency inverter depending of the
fault. In all cases, the frequency inverter of the unit remains inhibited in fault status.
Immediate switch-off
The unit can no longer decelerate the drive. In the event of a fault, the output stage
goes to high-resistance and the brake is applied immediately.
Rapid stop
The drive is decelerated with the stop ramp. The brake is applied when the stop speed
is reached. The output stage goes to high resistance after the brake application time
has elapsed.
Emergency stop
The drive is decelerated with the emergency stop ramp. The brake is applied when the
stop speed is reached. The output stage goes to high resistance after the brake appli-
cation time has elapsed.
STO
Safe torque off is triggered by a safety relay. The frequency inverter no longer sup-
plies power to the motor for generating torque. At the same time, the brake is de-ener-
gized.
20278543/EN – 09/2014
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