
25
2530674-02-03/21 (translation of the original operating instructions)
Operating Instructions Safety Systems
MGB2-I-BP.-… / MGB2-I-BR.-…
EN
12.1. Using submodules
Each interlocking module can contain one submodule. For an exact description of the individual submodules as well as
information on compatibility, refer to the data sheet for the related submodule. This is included with each submodule.
Important!
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Only submodules of connection types P, K and N may be installed in the modules described here.
For information on the related connection type of a submodule, refer to the data sheet for the re-
lated submodule. This is included with each submodule.
Ì
On using a submodule, pay attention to the correct alignment of the module in relation to the label-
ing fields on the connection submodule. Incorrect assignments can cause serious malfunctions in
your installation.
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Unused submodule slots must be fitted with a cover (e.g. order number 126372).
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Avoid touching the contacts on the underside of the submodule. Risk of ESD damage and contact
problems due to soiling.
12.2. Notes about
Important!
Ì
This device is intended to be used with a Class 2 power source in accordance with UL1310.
As an alternative an LV/C (Limited Voltage/Current) power source with the following properties can
be used:
- This device shall be used with a suitable isolating source in conjunction with a fuse in accordance
with UL248. The fuse shall be rated max. 3.3 A and be installed in the max. 30 V DC power supply
to the device in order to limit the available current to comply with the UL requirements. Please note
possibly lower connection ratings for your device (refer to the technical data).
1) Note on the scope of the UL approval: only for applications as per NFPA 79 (Industrial Machinery). the devices have been tested as per the requirements of UL508
(protection against electric shock and fire).
12.3. Safety in case of faults
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The operating voltage UB is reverse polarity protected.
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The safety outputs FO1A/FO1B are short circuit-proof.
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A short circuit between FI1A and FI1B or FO1A and FO1B is detected by the device.
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A short circuit in the cable can be excluded by laying the cable with protection.