Monitoring Functions - Siemens SINAMICS S120 Function Manual

4.23.5

Monitoring functions

Features
S Standstill monitoring (p2542, p2543)
S Positioning monitoring (p2544, p2545)
S Dynamic following error monitoring (p2546, r2563)
S Cam controllers (p2547, p2548, p2683.8, p2683.9)
Description
s
Standstill window
p 2542
Ds
Still
Ds
Pos
p2544
Positioning window
Fig. 4-22 Standstill monitoring, positioning window
The position controller monitors standstill (zero speed), the positioning and the
following error.
The standstill monitoring function is activated using binector input p2551 (setpoint
static) and p2542 (standstill window). If the standstill window has still not been
reached when the monitoring time (p2543) has expired, fault F07450 is output.
The positioning monitoring is activated using binector inputs p2551 (setpoint static)
and p2554 = "0" (traversing command not active) and p2544 (positioning window).
After the monitoring time (p2545) has expired, the positioning window is checked
once. If it has not been reached, F07451 is output.
The standstill monitoring and the positioning monitoring can be de-activated using
the value "0" in p2542 and p2544. The standstill window should be greater than or
equal to the positioning window (p2542 w p2544). The standstill monitoring
window should be less than or equal to the positioning monitoring time
(p2543 v p2545).
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
Setpoint
Actual value
Dt
Still
Dt
Pos
Extended Functions
Function module position control
Position reached
r2684.10
p2543
Standstill monitoring time
p2545
Position monitoring time
t
4-243