Siemens CU240B-2 Parameter Manual page 699

A07850 (F) External alarm 1
Reaction: NONE
Acknowledge: NONE
Cause: The BICO signal for "external alarm 1" was triggered.
The condition for this external alarm is fulfilled.
See also: p2112 (External alarm 1)
Remedy: Eliminate the causes of this alarm.
A07851 (F) External alarm 2
Reaction: NONE
Acknowledge: NONE
Cause: The BICO signal for "external alarm 2" was triggered.
The condition for this external alarm is fulfilled.
See also: p2116 (External alarm 2)
Remedy: Eliminate the causes of this alarm.
A07852 (F) External alarm 3
Reaction: NONE
Acknowledge: NONE
Cause: The BICO signal for "external alarm 3" was triggered.
The condition for this external alarm is fulfilled.
See also: p2117 (External alarm 3)
Remedy: Eliminate the causes of this alarm.
F07860 (A) External fault 1
Reaction: OFF2 (IASC/DCBRAKE, NONE, OFF1, OFF3, STOP2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The BICO signal "external fault 1" was triggered.
See also: p2106 (External fault 1)
Remedy: Eliminate the causes of this fault.
F07861 (A) External fault 2
Reaction: OFF2 (IASC/DCBRAKE, NONE, OFF1, OFF3, STOP2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The BICO signal "external fault 2" was triggered.
See also: p2107 (External fault 2)
Remedy: Eliminate the causes of this fault.
F07862 (A) External fault 3
Reaction: OFF2 (IASC/DCBRAKE, NONE, OFF1, OFF3, STOP2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The BICO signal "external fault 3" was triggered.
See also: p2108 (External fault 3), p3111 (External fault 3, enable), p3112 (External fault 3 enable negated)
Remedy: Eliminate the causes of this fault.
F07900 (N, A) Drive: Motor blocked
Reaction: OFF2 (NONE, OFF1, OFF3, STOP2)
Acknowledge: IMMEDIATELY
Cause: Motor has been operating at the torque limit longer than the time specified in p2177 and below the speed threshold
set in p2175.
This signal can also be triggered if the speed is oscillating and the speed controller output repeatedly goes to its limit.
It may also be the case that thermal monitoring of the power unit reduces the current limit (see p0290), thereby
causing the motor to decelerate.
See also: p2175 (Motor locked speed threshold), p2177 (Motor locked delay time)
Remedy: - check that the motor can rotate freely.
- check the torque limit: For a positive direction of rotation r1538, for a negative direction of rotation r1539.
- check the parameter, message "Motor locked" and if required, correct (p2175, p2177).
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SINAMICS G120 / Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Faults and Alarms
List of Faults and Alarms
3-699