Siemens SINUMERIK 840D sl Series Diagnostics Manual page 693

08/2005
Remedy: Re causes 1, 4:
Accept the new serial number with p0440 = 1.
Re causes 2, 3:
Carry-out an automatic adjustment using the pole position identification routine. First,
accept the serial number with p0440 = 1. Acknowledge the fault. Initiate the pole position
identification routine with p1990 = 1. Then check that the pole position identification routine
is correctly executed.
or
Set the adjustment using parameter p0431. In this case, the new serial number is
automatically accepted.
or
Mechanically adjust the encoder. Accept the new serial number with p0440 = 1.
207415 <location>Drive: Angular commutation offset transfer running
Reaction: OFF2
Acknowledge: NONE
Cause: The angular commutation offset was automatically determined using p1990 = 1.
This fault causes the pulses to be cancelled - this is necessary to transfer the angular
commutation offset to p0431.
See also: p1990
Remedy: The fault can be acknowledged without any additional measures.
207420 <location>Drive: Current setpoint filter natural frequency > Shannon
frequency
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[0]
Fault value (r0949, hexadecimal):
Bit 0: Filter 1 (p1658, p1660)
Bit 1: Filter 2 (p1663, p1665)
Bit 2: Filter 3 (p1668, p1670)
Bit 3: Filter 4 (p1673, p1675)
Remedy: - reduce the numerator or denominator natural frequency of the current setpoint filter
involved.
- reduce the current controller sampling time (p0115[0]).
- switch-out the filter involved (p1656).
207421 <location>Drive: Speed setpoint filter natural frequency > Shannon
frequency
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]
Fault value (r0949, hexadecimal):
Bit 0: Filter 1 (p1417, p1419)
Bit 1: Filter 2 (p1423, p1425)
Bit 8 ... 15: Data set number (starting from zero).
Remedy: - reduce the numerator or denominator natural frequency of the speed setpoint filter
involved.
- reduce the speed controller sampling time (p0115[1]).
- switch-out the filter involved (p1414).
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-693