4
Operating instructions
Safety-monitoring module
SRB301HC/T-24V
SRB301HC/T-230V
EN
6. Set-up and maintenance
6.1 Functional testing
The safety function of the safety-monitoring module must be tested.
The following conditions must be previously checked and met:
1. Correct fixing
2. Check the integrity of the cable entry and connections
3. Check the safety-monitoring module's enclosure for damage.
4. Check the electrical function of the connected sensors and their influ-
ence on the safety-monitoring module and the downstream actuators
6.2 Maintenance
A regular visual inspection and functional test, including the following
steps, is recommended:
1. Check the correct fixing of the safety-monitoring module
2. Check the cable for damages
3. Check electrical function
The device has to be integrated into the periodic check-ups
according to the Ordinance on Industrial Safety and Health,
however at least 1 × year.
Damaged or defective components must be replaced.
7. Disassembly and disposal
7.1 Disassembly
The safety-monitoring module must be disassembled in a de-energised
condition only. Push up the bottom of the enclosure and hang out
slightly tilted forwards.
7.2 Disposal
The safety-monitoring module must be disposed of in an appropriate
manner in accordance with the national prescriptions and legislations.
8. Appendix
8.1 Wiring examples
Dual-channel control, shown for a guard door monitor; with two
contacts A and B, where at least one is a positive break contact;
with external reset button
J
(see Fig. 3)
• Relay outputs: Suitable for 2-channel control, for increase in capacity
or number of contacts by means of contactors or relays with positive-
guided contacts.
• The control system recognises wire-breakage and earth faults in the
monitoring circuit.
• Cross-wire shorts between the monitoring circuits are detected.
A1
S13
S14 S23
J
S24
X1
X2
K
B
K
A
K
A
K
B
K2
K1
A2
14
N
24
34
42
S
K2
a)
K1
ON
OUT
IN A
IN B
F1
13
23
33
L1
41
K
B
K
A
Fig. 2
a) Logic
S
= Feedback circuit
