Motorized Potentiometer - Siemens SINAMICS S120 Function Manual

2.2.4

Motorized potentiometer

Description
This function is used to simulate an electromechanical potentiometer for setpoint
input.
You can switch between manual and automatic mode for setpoint input. The speci-
fied setpoint is routed to an internal ramp-function generator.
The output of the ramp-function generator for the motorized potentiometer is avail-
able for further interconnection via a connector output (e.g. interconnection to con-
nector input p1070 – CI: main setpoint).
Properties for manual mode (p1041 = "0")
S Separate binector inputs for Raise and Lower are used to adjust the input
setpoint:
– p1035 BI: Motorized potentiometer, setpoint, raise
– p1036 BI: Motorized potentiometer, lower setpoint
S Invert setpoint (p1039)
S Configurable ramp-function generator, e.g.:
– Ramp-up/ramp-down time (p1047/p1048) referred to p1082
– Setting value (p1043/p1044)
– Initial rounding-off active/not active (p1030.2)
S Non-volatile storage via p1030.3
S Configurable setpoint for Power On (p1030.0)
– Starting value is the value in p1040 (p1030.0 = 0)
– Starting value is the stored value (p1030.0 = 1)
Properties for automatic mode (p1041 = "1")
S The input setpoint is specified via a connector input (p1042).
S The motorized potentiometer acts like a "normal" ramp-function generator.
S Configurable ramp-function generator, e.g.:
– Switch on/off (p1030.1)
– Ramp-up/ramp-down time (p1047/p1048)
– Setting value (p1043/p1044)
– Initial rounding-off active/not active (p1030.2)
S Non-volatile storage of the setpoints via p1030.3
S Configurable setpoint for Power On (p1030.0)
– Starting value is the value in p1040 (p1030.0 = 0)
– Starting value is the stored value (p1030.0 = 1)
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
Extended Setpoint Channel
Extended setpoint channel
2-51