Siemens SINAMICS G120 List Manual page 1101

Remedy: For fault value 0:
- use an absolute encoder.
For fault value 1:
- use a Control Unit with sufficient NVRAM.
For fault value = 2, 4:
- if necessary, de-select the position tracking (p0411 for the measuring gear, p2720 for the load gear).
For fault value 3:
- Only activate position tracking of the load gear in the same encoder data set if the gear ratio (p2504, p2505), axis
type (p2720.1) and tolerance window (p2722) are also the same. These parameters must be the same in all drive
data sets, which use the same motor encoder (p187).
F07556 Measuring gear: Position tracking, maximum actual value exceeded
Message class: Actual position/speed value incorrect or not available (11)
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: When the position tracking of the measuring gear is configured, the drive/encoder identifies a maximum possible
absolute position actual value (r0483) that cannot be represented within 32 bits.
Maximum value: p0408 * p0412 * 2^p0419
Fault value (r0949, interpret decimal):
aaaayyxx hex: yy = component number, xx = encoder data set
See also: p0408 (Rotary encoder pulse number), p0412 (Measuring gear absolute encoder rotary revolutions virtual),
p0419 (Fine resolution absolute value Gx_XIST2 (in bits))
Remedy: - reduce the fine resolution (p0419).
- reduce the multiturn resolution (p0412).
See also: p0412 (Measuring gear absolute encoder rotary revolutions virtual), p0419 (Fine resolution absolute value
Gx_XIST2 (in bits))
A07557 (F) Encoder 1: Reference point coordinate not in the permissible range
Message class: Application/technological function faulted (17)
Reaction: NONE
Acknowledge: NONE
Cause: The reference point coordinate received when adjusting the encoder via connector input CI:p2599 lies outside the
half of the encoder range and cannot be set as actual axis position. The maximum permissible value is displayed in
the supplementary information.
Remedy: Set the reference point coordinate less than the value from the supplementary information.
See also: p2598 (EPOS reference point coordinate signal source)
A07558 (F) Encoder 2: Reference point coordinate not in the permissible range
Message class: Application/technological function faulted (17)
Reaction: NONE
Acknowledge: NONE
Cause: The reference point coordinate received when adjusting the encoder via connector input CI:p2599 lies outside the
half of the encoder range and cannot be set as actual axis position. The maximum permissible value is displayed in
the supplementary information.
Remedy: Set the reference point coordinate less than the value from the supplementary information.
See also: p2598 (EPOS reference point coordinate signal source)
F07560 Drive encoder: Number of pulses is not to the power of two
Message class: Error in the parameterization / configuration / commissioning procedure (18)
Reaction: OFF2 (IASC/DCBRK, NONE, OFF1, OFF3, STOP2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: For rotary absolute encoders, the pulse number in p0408 must be to the power of two.
Fault value (r0949, interpret decimal):
The fault value includes the encoder data set number involved.
Remedy: - check the parameterization (p0408, p0404.1, r0458.5).
- upgrade the Sensor Module firmware if necessary
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
4 Faults and alarms
4.2 List of faults and alarms
1101