EUCHNER CTP - Notes on Operation with Safe Control Systems; Connection of Guard Locking Control; Guard Locking Control for Variants with IMM Connection; Guard Locking Control for Variants Without IMM Connection

Operating Instructions
Transponder-Coded Safety Switch CTP/CTA-L1/2-BR
34
(translation of the original operating instructions) 2537376-01-04/21
11.4. Notes on operation with safe control systems
Observe the following requirements for connection to safe control systems:
Ì Use a common power supply for the control system and the connected safety switches.
Ì A pulsed power supply must not be used for U
B
. Tap the supply voltage directly from the power supply unit. If the power
supply is connected to a terminal of a safe control system, this output must provide sufcient electrical current.
Ì Always connect inputs FI1A and FI1B directly to a power supply unit or to outputs FO1A and FO1B of another EUCHNER
BR device (series connection). Pulsed signals must not be present at inputs FI1A and FI1B.
Ì The safety outputs FO1A and FO1B can be connected to the safe inputs of a control system. Prerequisite: The input
must be suitable for pulsed safety signals (OSSD signals, e.g. from light grids). The control system must tolerate test
pulses on the input signals. This normally can be set up by parameter assignment in the control system. Observe the
notes of the control system manufacturer. For the pulse duration of your safety switch, refer to chapter 14. Technical
data on page 38.
A detailed example of connecting and setting the parameters of the control system is available for many devices at
www.euchner.com in the area Downloads/Applications/CTP… or CTA…. The features of the respective device are dealt
with there in greater detail.
11.5. Connection of guard locking control
11.5.1. Guard locking control for variants with IMM connection
Solenoid operating voltage 24VDC
IMP
IMM
Solenoid operating voltage 0VDC
Figure 8: Connection example with IMM connection
11.5.2. Guard locking control for variants without IMM connection
Solenoid operating voltage 24VDC
IMP
0V
Electronics and solenoid operating voltage
0VDC
Figure 9: Connection example without IMM connection
11.5.3. Guard locking control for variants with UA connection
(Auxiliary) voltage* at guard locking solenoid
UA*
0VUB
Bit CL
Solenoid operating voltage 0VDC
* In some product variants the auxiliary voltage UA is connected internally to the operating voltage UB.
Figure 10: Connection example with UA connection