11.03
8 Application examples
8.2 Two-channel brake control with SI (SPL)
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
8-447
Holding/service brake actuation
Current source/link version with
checkback
Holding
brake
Relay outoutput
Fig. 8-2
Two-channel brake control, P/M switching with SI
Unlike the test routine described in Chapter 7.3.6, the test involves separately
controlling the two outputs A1 and A2 and monitoring the resulting level change
at test input E1.