CES-AR-AES-12 (Order no. 098225)

AR evaluation unit CES-AR-AES-12

Central evaluation of an AR switch chain
Status of each individual switch can be recognized
For switch chains of up to 12 devices
Four individual safe relay contacts
Category 4/PLe according to EN ISO 13849-1

Description

Important: A switch chain comprising the following safety switches can be connected to the AR evaluation unit:

CES-AR-C01

CES-AR-C02

CES AR-C04

ESL-AR

CET-AR

CTP-AR

Function

The AR evaluation unit is used to evaluate the individual safety switches in a CES-AR-... switch chain and the safe interruption of a safety circuit.

The unit has two inputs for connection of a CES-AR... switch chain. The safety contacts are switched as a function of the input signals. Downstream parts of the safety circuit can be monitored using a feedback loop.

The switching states of the connected safety switches can be signaled by means of monitoring outputs.

If the actuator on one of the safety switches in the switch chain is moved out of the actuating range, the AR evaluation unit opens its contacts and the corresponding monitoring output is reset.

The system is designed so that failures will not result in the loss of the safety function. The occurrence of failures is detected by cyclic self-monitoring at the latest at the next demand to close the safety contacts.

The system can be started either manually using a start button or automatically.

Dimensional drawings

Connection examples

Technical data

Approvals

Operating and display elements

LED display
DIA	LED red: fault display
OUT	LED yellow: AR chain status
STATE	LED green: device status

Electrical connection values

Connection cross section	0.14 - 2.5 mm²
Rated insulation voltage Ui	250 V
Rated impulse withstand voltage Uimp	4 kV
EMC protection requirements	Acc. to EN IEC 60947-5-3
Switching delay from state change	max. 480 ms
Degree of contamination	2
Current via feedback loop	5 ... 8 ... 10 mA
Permissible resistance in feedback loop	max. 600 Ω
Output type	Semiconductor outputs, p-switching, short circuit proof
Output voltage HIGH	UB - 20% - UB V DC
Output voltage LOW	0 - 1 V DC
Output current	max. 20 mA
Number of connectible safety switches	max. 12
Safety inputs	2 (for CES-AR switch chain)
Fuse	external (safety circuit) according to EN 60269-1
Utilization category	DC-13, 24 V 5 A

Mechanical values and environment

Dimensions	114 x 99 x 45
Connection type	plug-in screw terminals, coded
Number of LED displays	3
Ready delay	max. 8 s
Atmospheric humidity	not condensing, max. 80 % rH
Mounting type	TH 35 mounting rail (EN IEC 60715)
Degree of protection	IP20
Ambient temperature	-20 to 55 °C
Material	Plastic PA6.6