3
Product description
3.1
Construction and function
The safety relay ReLy HAND1 is an electrical switching device with inputs and outputs.
The safety capable inputs of the safety relay are connected to 2 control devices.
The control devices control the internal relays, which reliably switch the enabling current
paths.
The enabling current paths close only when the two control devices are actuated within
0.5 s (concurrence monitoring).
Actuators with positively guided contacts are connected to the enabling current paths.
3.2
Product characteristics
3.2.1
Device overview
PWR
OUT
13
23
I1
Y1
14
24
I2
A2
R
E
L
Y
1
2
3
4
I3
S1
A1
I4
Figure 1: Device overview
1
Device unlocking
2
LEDs
3
Front connector unlocking
4
Front connector
3.2.2
Interfaces
Inputs
•
4 safety capable inputs for connecting 2 control devices (both with normally
closed and normally open)
•
External device monitoring input
Outputs
•
2 enabling current paths (safe)
•
Application diagnostic output (not safe)
3.2.3
Compatible sensor types
The safety relay is suitable for volt-free safety sensors and safety switches, e.g.:
PRODUCT DESCRIPTION
3
8020872/ZX84/2018-11-15 | SICK
O P E R A T I N G I N S T R U C T I O N S | ReLy HAND1
9
Subject to change without notice
