Notes; Set-Up And Maintenance; Functional Testing; Maintenance - Murr elektronik MIRO SAFE+ Betriebsanleitung

Operating instructions
Safety-monitoring module

5.3 Notes

Signalling outputs must not be used in safety circuits.
Opening the front cover (see Fig. 2)
• To open the front cover, insert a slotted screwdriver in the top and
bottom cover notch and gently lift it.
• When the front cover is open, the electrostatic discharge requirements
must be respected and observed.
• After setting, the front cover must be fitted back in position.
Only touch the components after electrical discharge!
Setting the switch (see Fig. 3)
• The cross-wire short monitoring function (factory setting) is pro-
grammed by means of the switch underneath the front cover of the
safety-monitoring module.
• The switch must only be operated in de-energised condition by means
of a finger or an insulated blunt tool.
• Pos. nQS (top): Not cross-wire short proof,
suitable for 1-channel applications with outputs connected to potential
in the control circuits.
• Pos. QS (bottom), Cross-wire short proof:
suitable for 2-channel applications without outputs connected to
potential in the control circuits
33 23 13 41
33 23 13 41
X2 S12 S11 A1
X2 S12 S11 A1
MIRO
MIRO
U U
B
B SAFE+
SAFE+
U
U
i Switch
i Switch
K1
K1
H L 24
H L 24
K2 K2
X3 S22S21 A2 X3 S22S21 A2
34 24 14 42
34 24 14 42
Fig. 1 Fig. 2

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
12
MIRO_SAFE+_Switch_H_L_24_en.indd 12

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 monitor 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
position switches where one has a positive break contact; with
external reset button
• 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, earth faults and cross-
wire shorts in the monitoring circuit.
• = Feedback circuit
S
X2 S12 S11 A1 X2 S12 S11 A1
MIRO MIRO
U U
B B
SAFE+ SAFE+
U U
Switch Switch
i i
K1 K1
H L 24 H L 24
K2 K2
nQS
QS
X3 S22S21 A2 X3 S22S21 A2
A1
F1
UB
A2
Fig. 3
Fig. 4 a) Logic
EN
MIRO SAFE+ Switch H L 24
Art.-No. 3000-33113-3020012
(Fig. 4)
J
K
S
B
J
K
A
S12 S11 S21 S22 X3 X2 13 23
nQS
a)
QS
K1
Ui
K2
K1 K2
14 24
K
A
L1
33 41
34 42
K
B
N
12.06.2012 09:33:33