Control functions
7.3 Pulse train input position control (PTI)
SINAMICS V90, SIMOTICS S-1FL6
234
Operating Instructions, 04/2019, A5E36037884-007
Note
When you use the CLR high level to clear the pulses (p29242 = 1), the high level need to be
kept for more than 8 ms.
When the signal CLR is active in the PTI mode or a compound mode with PTI, the alarm
A7585 occurs.
If there are overshoot when you use the CLR function, you need to increase the integral time
(p29121).
7.3.11
Referencing (only for absolute encoder)
If an absolute encoder is used, you must adjust the absolute encoder with the BOP menu
function "ABS". For more information about the "ABS" menu function, see Section "Adjusting
an absolute encoder (Page 207)".
7.3.12
PTO function
Function
A pulse train encoder output (PTO) which provides pulse signals can transmit the signals to
the controller to realize a closed-loop control system inside the controller, or transmit them to
another drive as pulse train setpoint for a synchronous axis.
Electronic gear
The electronic gear ratio is a multiplier factor to the PTO to a controller. It is realized with a
numerator and a denominator. One numerator (p29031) and one denominator (p29032) are
used for the PTO electronic gear ratio:
