SEW-Eurodrive MOVIDRIVE compact MCH41A, System Manual

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System Manual – MOVIDRIVE® compact Drive Inverters
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Fault information
Service
12 Service
12.1 Fault information
Fault memory
The error memory (P080) stores the last five error messages (errors t-0 to t-4). The error
message of longest standing is deleted whenever more than five error messages have
occurred. When the fault occurs, the following information is saved: fault that occurred
•
status of binary inputs/outputs
•
operating status of the inverter
•
inverter status
•
heat
sink temperature
•
speed
•
output current
•
active current
•
unit utilization
•
DC link
voltage
•
ON hours
•
enable hours
•
parameter set
•
motor utilization.
Switch-off
responses
There are three switch-off responses depending on the fault; the inverter remains
inhibited in fault status:
Immediate
disconnection The unit can no longer brake the drive; the output stage goes to high resistance in the
event of a fault and the brake is applied immediately (DBØØ "/Brake" = "0").
Rapid stop
The drive is braked with the stop ramp t13/t23. Once the stop speed is reached
(
→
P300/P310), the brake is applied (DBØØ "/Brake" = "0"). The output stage goes to
high resistance after the brake reaction time has elapsed (P732 / P735).
Emergency stop The drive is braked with the emergency ramp t14/t24. Once the stop speed is reached
(
→
P300/P310), the brake is applied (DBØØ "/Brake" = "0"). The output stage goes to
high resistance after the brake reaction time has elapsed (P732 / P735).
Reset An error message can be acknowledged by:
• Switching the power supply off and on again.
Recommendation: Observe a minimum switch-off time of 10 s for the supply system
contactor K11.
• Reset via input terminals, i.e. via an appropriately assigned binary input.
• Manual reset in SHELL (P840 = "YES" or [Parameter] / [Manual reset]).
• Manual reset using the DBG11B (pressing the <E> key in the event of a fault gives
direct access to parameter P840).
Inverter is waiting
for data If the inverter is controlled via a communication interface (fieldbus, RS485 or SBus) and
the power was switched off and back on again or a fault reset was performed, then the
enable remains ineffective until the inverter once again receives valid data via the
interface, which is monitored with a timeout.
DANGER!
Risk of crushing if the motor starts up automatically after an auto reset.
Severe or fatal injuries.
• Do not use auto reset with drives where an automatic restart represents a danger
to people or units.
• Perform a manual reset.