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9.6.7
Zero speed clamp
Overview
The function of zero speed clamp is used to stop the motor and lock the motor axis when motor
speed setpoint is below a parameterized threshold level (p29075).
Description of function
The zero speed clamp function is available only when the analog input 0 is used as the source
of the speed setpoint. The digital input signal ZSCLAMP is used to activate this function. When
both the motor speed setpoint and the motor actual speed are below the parameterized
threshold level and the signal ZSCLAMP is logic "1", the motor is locked. The converter exits from
clamping state either when the motor speed setpoint is above the threshold level or when the
signal ZSCLAMP is logic "0".
Table 9-32
Signal
type
DI
9.6.8
Ramp-function generator
Overview
The "ramp-function generator" function is used to limit acceleration in the event of abrupt
setpoint changes and thus helps prevent load surges during drive operation.
Description of function
The ramp-up time p1120 and ramp-down time p1121 can be used to set mutually independent
acceleration and deceleration ramps. This allows a controlled transition to be made in the event
of setpoint changes.
SINAMICS S200 pulse train servo drive system with SIMOTICS S-1FL2
Operating Instructions, 11/2023, FW V6.3, A5E51646767B AA
DI configuration
Signal name Setting
ZSCLAMP
1
0
9.6 Speed control (S) (for S200 PTI only)
Description
When the motor speed setpoint is below the zero speed clamp
threshold, the motor is locked.
No action
Functions
269
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