5
Mounting
5.1
Safety
DANGER
Hazard due to unexpected starting of the machine
Hazard due to electrical voltage
b
Make sure that the outputs of the safety relay have no effect on the machine dur‐
ing mounting and electrical installation.
b
Make sure that the safety relay and the connected components are isolated from
all voltage sources during mounting and electrical installation of the device and
during mounting/dismantling of the front connector.
NOTICE
Enclosure rating IP20 only applies if the front connector is mounted.
5.2
Mounting procedure
Prerequisites
•
Mounting is done in accordance with EN 50274 and electrical installation in
accordance with IEC 60204-1 in the control cabinet with enclosure rating IP54.
•
Mounting is done on a 35 mm mounting rail (IEC 60715).
•
The mounting rail is connected to the functional earth.
•
The safety relay is installed in a vertical orientation (on a horizontal mounting rail).
•
There is at least 50 mm of space for air circulation above and below the safety
relay.
•
There is at least 25 mm of space in front of the safety relay (front side). More
space may be needed depending on the connections.
Approach
Click
Figure 6: Mounting
b
Attach safety relay to mounting rail.
MOUNTING
5
8020868/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 EMSS1
17
Subject to change without notice
