SICK ReLy HAND1 - Leds; External Device Monitoring; Status Indicators; Compatible Sensor Types

3.3.2 Compatible sensor types
Table 2: Compatible sensor types
Sensor type Examples
Volt-free safety sensors and safety
s
witches
2 control devices, each with normally closed and
normally open
3.3.3 External device monitoring
Permanent external device monitoring can be implemented using external wiring.
3.3.4 Status indicators
LEDs
PWR
OUT
1
3
2
3
I1
Y1
14
2
4
I2
A2
RELY
I3
S1
A1
I4
PWR
OUT
13
23
I1
Y1
14
24
I2
A2
RELY
I4
A1
I3
S1
HAND1
1085346
Figure 2: LEDs
The labeled positions are only partially assigned LEDs. The positions and their labels
(e
xcept the top 2 lines) also indicate the assignment of the terminals on the front connec‐
tor.
Table 3: Safety relay indicators
Labeling Color Function
PWR Green/Red Voltage supply
OUT Green Enabling current paths
I1 Green Safety capable input for con‐
t
rol device A, normally open
I2 Green Safety capable input for con‐
trol device A, normally closed
I3 Green Safety capable input for con‐
t
rol device B, normally open
I4 Green Safety capable input for con‐
trol device B, normally closed
S1 Green External device monitoring
input (EDM)
Y1 Green Application diagnostic output
(N
C)
3 PRODUCT DESCRIPTION
10
O P E R A T I N G I N S T R U C T I O N S | ReLy HAND1 8020872/1FH0/2022-10-27 | SICK
Subject to change without notice