Siemens Sinumerik 840D sl Diagnostic Manual page 790

Overview of Alarms
SINAMICS-Alarms
Cause: The BICO signal "external fault 1" was triggered.
See also: p2106 (External fault 1)
Remedy: Eliminate the causes of this fault.
207861 <location>External fault 2
Message -
value:
Drive object: All objects
Reaction: A_INFEED: OFF2 (NONE, OFF1)
SERVO: OFF2 (IASC/DCBRAKE, NONE, OFF1, OFF3, STOP1, STOP2)
VECTOR: OFF2 (IASC/DCBRAKE, NONE, OFF1, OFF3, STOP1, 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.
207862 <location>External fault 3
Message -
value:
Drive object: All objects
Reaction: A_INFEED: OFF2 (NONE, OFF1)
SERVO: OFF2 (IASC/DCBRAKE, NONE, OFF1, OFF3, STOP1, STOP2)
VECTOR: OFF2 (IASC/DCBRAKE, NONE, OFF1, OFF3, STOP1, STOP2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The BICO signal "external fault 3" was triggered.
See also: p2108, p3111, p3112
Remedy: Eliminate the causes of this fault.
207890 <location>Internal voltage protection/internal armature short-circuit with
Safe Torque Off active
Message -
value:
Drive object: SERVO, VECTOR
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The internal armature short-circuit (p1231 = 4) is not possible as Safe Torque Off (STO) is enabled.
The pulses cannot be enabled.
Remedy: Switch out the internal armature short-circuit (p1231=0) or de-activate Safe Torque Off (p9501 =
p9561 = 0).
Note:
STO: Safe Torque Off / SH: Safe standstill
207900 <location>Drive: Motor locked/speed controller at its limit
Message -
value:
Drive object: SERVO
Reaction: OFF2 (NONE, OFF1, OFF3, STOP1, 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 initiated if the speed actual value is oscillating and the speed controller output
repeatedly goes to its limit.
See also: p2175, p2177
2-790
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009