4
Operating instructions
Safety-monitoring module
SRB NA-R-C.15
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 influence 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 1x/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
One-channel control, shown for a guard door monitor with one
positive break contact and external reset button
J
(see Fig. 2)
• Relay outputs: Suitable for 2-channel control, for increase in capacity
or number of contacts by means of contactors or relays with posi-
tive-guided contacts.
• The control system recognises wire-breakage and earth faults in the
monitoring circuit.
•
S
= Feedback circuit
K
A
K
B
L– (A2)
L+ (A1)
K1
K2
F1
C
X2
K
A
K
B
D
J
L1
N
K
A
K
B
K1
K2
13
23
14
24
33
34
41
44
X1
UB
Fig. 2
a) Logic
8.2 Start configuration
External reset button (non-monitored start) (see Fig. 3)
• The external reset button is integrated in the feedback circuit in series.
• The safety-monitoring module is activated upon actuation of the reset
button.
Automatic start (Fig. 4)
• The automatic start is programmed by connecting the feedback circuit
to the terminals X1-X2. If the feedback circuit is not required, establish
a bridge.
• Caution: Not admitted without additional measure due to the risk of
gaining access by stepping behind!
• When the SRB NA-R-C.15 safety-monitoring module is used with
the operating mode "Automatic start", an automatic restart after a
shutdown in case of emergency must be prevented by the upstream
control to EN 60204-1 paragraph 9.2.5.4.2 and 10.8.3.
X2
X1
K
A
J
K
B
X2
X1
K
A
K
B
Fig. 3
Fig. 4
