Siemens Sinumerik 840D sl Diagnostic Manual page 750

Overview of Alarms
SINAMICS-Alarms
207423 <location>Drive: APC filter natural frequency > Shannon frequency
Message %1
value:
Drive object: SERVO
Reaction: NONE (OFF1, OFF2, OFF3)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: One of the filter natural frequencies is greater than the Shannon frequency.
The Shannon frequency is calculated according to the following formula: 0.5 / (p0115[1] * x)
Fault value (r0949, interpret hexadecimal):
Bit 0: Filter 1.1 (p3711, p3713), x = 1
Bit 4: Filter 2.1 (p3721, p3723), x = p3706
Bit 5: Filter 2.2 (p3726, p3728), x = p3706
Bit 8: Filter 3.1 (p3731, p3733), x = p3707
Bit 9: Filter 3.2 (p3736, p3738), x = p3707
Bit 16 ... 32: Data set number (starting from zero)
Remedy: - reduce the numerator or denominator natural frequency of the filter involved.
- reduce the speed controller sampling time (p0115[1]) or the sub-sampling (p3706, p3707).
- switch out the filter involved (p3704).
207424 <location>Drive: Operating condition for APC not valid
Message Fault cause: %1 bin
value:
Drive object: SERVO
Reaction: NONE
Acknowledge: NONE
Cause: The APC function (Advanced Positioning Control) has identified an invalid operating condition.
Alarm value (r2124, interpret hexadecimal):
Bit 0 = 1:
APC is operating without encoder
Bit 1 = 1:
The load measuring system for APC, selected using p3701, has a fault. The APC function is disabled.
Bit 2 = 1:
The load measuring system for APC, selected using p3701, has a fault. The pulse de-coupling is dis-
abled, i.e. the speed of the motor measuring system is used as speed for the closed-loop motor speed
control.
Remedy: Re bit 0:
Only use the APC function in operation with an encoder.
Re Bit 1, 2:
Check the load measuring system.
207425 <location>Drive: APC monitoring time for speed limit expired
Message -
value:
Drive object: SERVO
Reaction: OFF1
Acknowledge: IMMEDIATELY
Cause: The limit value (p3778) for the speed/velocity was exceeded for a time longer than that set in the mon-
itoring time (p3779).
Note:
APC: Advanced Positioning Control
Remedy: - check the measured value.
- check the limit value and monitoring time (p3778, p3779).
207429 <location>Drive: DSC without encoder not possible
Message -
value:
Drive object: SERVO
Reaction: OFF2
Acknowledge: IMMEDIATELY (POWER ON)
2-750
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009