Siemens SINUMERIK 840D Description Of Functions

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.

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB