2 Safety information
2.1 General safety notes
Product integration
DANGER
T
he product can not offer the expected protection if it is integrated incorrectly.
b
Plan the integration of the product in accordance with the machine requirements
(project planning).
b
Implement the integration of the product in accordance with the project planning.
Mounting and electrical installation
DANGER
D
eath or severe injury due to electrical voltage and/or an unexpected startup of the
machine
b
Make sure that the machine is (and remains) disconnected from the voltage
supply during mounting and electrical installation.
b
Make sure that the dangerous state of the machine is and remains switched off.
Repairs and modifications
DANGER
Im
proper work on the product
A modified product may not offer the expected protection if it is integrated incorrectly.
b
Apart from the procedures described in this document, do not repair, open, manip‐
ulate or otherwise modify the product.
2.2 Intended use
The safety relay in combination with two suitable pushbuttons (control devices) is a
t
wo-hand control unit for switching safety-related circuits on and off.
The safety relay complies with class A, group 1 as per EN 55011. Group 1 encom‐
passes all ISM devices in which intentionally generated and/or used conductor-bound
RF energy that is required for the inner function of the device itself occurs.
The product may be used in safety functions.
The product must only be used within the limits of the prescribed and specified techni‐
cal specifications and operating conditions at all times.
Incorrect use, improper modification or manipulation of the product will invalidate any
warranty from SICK; in addition, any responsibility and liability of SICK for damage and
secondary damage caused by this is excluded.
UL/CSA applications
If t
he product is being used in accordance with UL 508 or CSA C22.2 No.14, the
following conditions must also be met:
•
To protect the device’s 24-volt voltage supply, use a fuse with a maximum voltage
of 4A and a minimum of 30VDC in accordance with UL248.
SAFETY INFORMATION 2
8020872/1FH0/2022-10-27 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy HAND1
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Subject to change without notice