6
6.6 Analog inputs
6-537
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Table 6-53 Parameter for M
set
mode using terminal 56.x/14.x and/or terminal 24.x/20.x, continued
Parameters
No. Effec-
tive
UnitsMax.Stan-
dard
Min.Description
1242:8 Offset torque setpoint (open–loop torque
controlled) (SRM, ARM)
Offset force setpoint (open–loop torque con-
trolled) (SLM)
–50 000.0 0.0 50 000.0
Nm
N
Imme-
diately
This parameter value is added to the torque setpoint or force setpoint (SLM).
Note:
Thus, a pre–tensioning torque can be generated.
0620
For the torque/power reduction via terminal 24.x/20.x (refer to Chapter 6.6.4), this parameter
1243:8
For the torque/power reduction via terminal 24.x/20.x (refer to Chapter 6.6.4), this parameter
can be used to make adjustments.
1244
can be used to make adjustments.
6.6.4 Torque/power reduction via terminal 24.x/20.x
A continuous torque/power reduction (M
red
mode) is possible via ana-
log input 2 (terminal 24.x/20.x) by entering an analog voltage.
The reduction is:
In the constant torque range,
referred to the 1st torque limit (P1230)
Constant power range
referred to the first power limit (P1235)
The following characteristics can be set, as a function of parameter
P1244, using the setpoint from terminal 24.x/20.x:
Negative characteristic (P1244 = 1)
– Application
For wire breakage, the input voltage is 0 V
––> the limits for the torque/power are effective, defined with the
normalization (maximum values)
––> this case is suitable for applications which require a torque
when a fault occurs (e.g. hanging axes)
Positive characteristic (P1244 = 2)
– Application
For a wire breakage, a 0 V input voltage becomes effective
––> there is no torque/power
––> this case is suitable for applications which do not require
torque under fault/error conditions
Description
Characteristics to
reduce the
torque/power
6 Description of the Functions
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