SEW-Eurodrive MOVITRAC 07, Системное руководство

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System Manual – MOVITRAC® 07
Fault information
Operation and Service
10 Operation and Service
10.1 Fault information
Fault memory
The inverter stores the fault message in fault memory P080. The inverter does not save
a new fault until the fault message has been acknowledged. The local operating panel
shows the fault which occurred most recently. Whenever double faults occur, the value
stored in P080 does not correspond to the value displayed on the operating panel. This
is an example of what happens with F-07 DC link overvoltage followed by F34 Ramp
timout.
The inverter saves the following information when the malfunction occurs:
• Fault which has occurred
• Status of the binary inputs / binary outputs
• Operating status of the inverter
• Inverter status
• Heat sink temperature
• Speed
• Output current
• Active current
• Unit utilization
• DC link voltage
Switch-off
responses
There are three switch-off responses depending on the fault.
Inhibit means: Output stage inhibited, reset required.
Immediate switch-
off The unit can no longer brake the drive. In the event of a fault, the output stage goes to
high-resistance and the brake is applied immediately.
Rapid stop with
inhibit
The inverter brakes the drive using stop ramp t13. The brake is applied when the
mini-
mum speed P301
is reached. The output stage goes to high-resistance. If
P820 4-
quadrant operation = OFF
, deceleration is not with a ramp but instead by means of direct
current braking.
Rapid stop without
inhibit The inverter brakes the drive using stop ramp t13. The brake is applied when the mini-
mum speed P301 is reached. If P820 4-quadrant operation = OFF , deceleration is not
with a ramp but instead by means of direct current braking.