23 / 157V3.3 11.07.2007 KRC-AD-KRC2ed05-BA en
2. Product description
2.6 Electronic Safety Circuit (ESC) safety logic
Overview The ESC (Electronic Safety Circuit) safety logic is a dual-channel computer-
aided safety system. It permanently monitors all connected safety-relevant
components. In the event of a fault or interruption in the safety circuit, the pow-
er supply to the drives is shut off, thus bringing the robot system to a standstill.
The ESC system consists of the following components:
CI3 board
KCP (master)
KPS600
MFC (passive node)
The ESC system with its node periphery replaces all the interfaces of a con-
ventional safety system.
The ESC safety logic monitors the following inputs:
Local EMERGENCY STOP
External EMERGENCY STOP
Operator safety
Enabling
Drives OFF
Drives ON
Operating modes
Qualifying inputs
Node in the KCP The node in the KCP is the master and is initialized from here.
The node receives dual-channel signals from:
EMERGENCY STOP pushbutton
Fig. 2-14: Structure of the ESC circuit
1 KPS600 5 MFC3
2 CI3 board 6 DSE
3 KCP coupler (optional) 7 PC
4KCP
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