Manual

56 Drive for stepper motors
5 Commissioning SD315O
0098441113480, V2.00, 03.2011
5.2.4 Setting the Softstep function
Parameter switch S2.4 allows you to set the "Softstep" function.
If the function is active, the signals at the P/D signals are internally
smoothed. This results in smoother motor movements.
This results in a temporary position deviation during a motor movement.
The magnitude of the position deviation depends on the velocity. The po-
sition deviation increases in line with the velocity and may amount to as
much as one motor revolution.
You can calculate the position deviation using the following formula:
• Position deviation in degrees:
Velocity in min
-1
/ 8
• Position deviation in number of rotations:
Velocity in min
-1
/ 2880
Once the motor is at a standstill, the position deviation no longer exists.
왘 Switch off all supply voltages. Verify that no voltages are present
(safety instructions).
왘 Use parameter switch S2.4 to activate or deactivate the "Softstep"
function.
Switch setting S2.4 Meaning
OFF (factory setting) Function "Softstep" deactivated
ON "Softstep" function activated