Siemens SINAMICS G120D List Manual page 92

Parameters
List of parameters
Bit field: Bit Signal name
01 DI 1 (X07.2)
03 DI 3 (X08.2)
Dependency: Refer to: p0488, p0489, p0493
Note: The terminal must be set as input.
When the measuring probe or the equivalent zero mark is inverted, this has no effect on the status displays of the
digital inputs (r0721, r0722, r0723).
DI: Digital Input
p0491 Motor encoder fault response ENCODER / Fault resp ENCODER
Access level: 3
Can be changed: T
Units group: -
Min
0
Description: Sets the behavior for the ENCODER fault response (motor encoder).
This means, for example, if an encoder fault occurs, encoderless operation can be automatically selected with a
shutdown behavior that can be selected.
Value: 0:
1:
2:
3:
4:
5:
Dependency: The following parameters are relevant for encoderless operation.
Caution: For a value = 1, 2, 3, 5 the following applies:
- encoderless operation must have been started.
For a value = 1, the following applies:
- in spite of the motor encoder fault that has occurred, the motor continues to operate.
Note: For a value = 1, 2, 3, 5 the following applies:
- Refer to the status signal "encoderless operation due to a fault" (BO: r1407.13).
- If, when setting r1407.13, a different drive data set is selected (e.g. interconnection from p0820), then the open-
loop or closed-loop control type p1300 of this data set must match that of the original data set (e.g. p1300 = 21).
Encoderless closed-loop controlled operation is kept when changing over.
For a value = 4, the following applies:
- the value can only be set for all data sets when p1231 = 4
- DC braking must be commissioned (p1232, p1233, p1234).
For a value = 5, the following applies:
Same function as for value = 1. However, encoder faults are output as alarm and the message bit "Fault active"
(r2139.3) is not set. The encoder fault has to be acknowledged via the encoder interface in order to resume opera-
tion with encoder.
p0492 Maximum speed difference per sampling cycle / n_dif max/samp_cyc
Access level: 3
Can be changed: U, T
Units group: -
Min
0.00 [rpm]
Description: Sets the maximum permissible speed difference within the current controller sampling time.
Dependency: Refer to: r1408
Refer to: F07902, F31118, A31418
Note: For a value of 0.0, the speed change monitoring is disabled.
If the speed difference exceeds the threshold value p0492, depending on p0491, either encoderless closed-loop
speed/torque control is selected or the drive is powered down with fault F3x118.
1-92
Encoder fault results in OFF2
Enc fault results in encoderless oper. and oper. continues
Encoder fault results in encoderless operation and OFF1
Encoder fault results in encoderless operation and OFF3
Encoder fault results in DC braking
Enc fault results in encoderless op, operation continues, alarm
1 signal
Inverted
Inverted
Calculated: -
Scaling: -
Unit selection: -
Max
5
Calculated: p0340 = 1,3
Scaling: -
Unit selection: -
Max
210000.00 [rpm]
© Siemens AG 2012 - 2013 All Rights Reserved
SINAMICS G120D List Manual (LH14), 01/2013
0 signal
Not inverted
Not inverted
Data type: Integer16
Dyn. index: -
Func. diagram: -
Factory setting
0
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
0.00 [rpm]
FP
-
-