Monitoring Functions - Siemens SINAMICS S150 Operating Instructions Manual

Functions, monitoring, and protective functions
9.4 Extended functions
9.4.5.3

Monitoring functions

Description
The position controller monitors the standstill, positioning and following error.
Δ s
Figure 9-18
Zero-speed monitoring
Zero-speed monitoring is activated via binector inputs p2551 (setpoint stationary) and p2542
(zero-speed window). If the zero-speed window is not reached once the monitoring time
(p2543) has lapsed, fault F07450 is triggered.
Zero-speed monitoring is deactivated with value "0" in p2542. The zero-speed window
should be greater than or equal to the positioning window (p2542 ≥ p2544). The zero-speed
monitoring time should be less than or equal to the positioning monitoring time (p2543 ≤
p2545).
Position monitoring
Positioning monitoring is activated via binector inputs p2551 (setpoint stationary), p2554 =
"0" (travel command not active) and p2544 (positioning window). Once the monitoring time
(p2545) has elapsed, the positioning window is checked once. If this is not reached, fault
F07451 is triggered.
Positioning monitoring can be deactivated with the value "0" in p2544. The zero-speed
window should be greater than or equal to the positioning window (p2542 ≥ p2544). The
zero-speed monitoring time should be less than or equal to the positioning monitoring time
(p2543 ≤ p2545).
360
s
p 2542
Δ s
p 2544
Zero-speed monitoring, positioning window
r 2684 . 10
p 2543
Δ t
p 2545
Δ t
Operating Instructions, 07/07, A5E00288214A
t
Drive converter cabinet units