ID-E270-011GB
83
Every converter is equipped with a special latch for fast installation on a typical supporting rail (DIN
EN 50022) located below the control panel top wall. The converters should be power supplied with +
24 V voltage which can be routed from the MZ-48 module or MIK-48 module output terminal blocks.
If the converters are powered from the control panel voltage and the MSI-48 Ed.3 module, the ZW7
jumper should be switched into the 2-3 position. The diagram showing connections between the
converters and the MSI-48 module and further between control panels by means of fibre-optic
cables is presented in Fig. 9.4.
Fig. 9.3 Four control panels network connection with two pairs of cables
Note:
When control panels are connected using fibre-optic cables, it is recommended to provide the optical
fibre converters power supply from an external power supply unit (independent from the control
panel voltage) of the following parameters: U
out
at 10 ÷ 40 V, I
out
at min. 200 mA, insulation
resistance at min. 1,000 V DC. Maintenance purpose disconnection of the control panels in which
optical fibre converters are supplied by external voltage, should not result in the connection rings
break (in the case of the converters power supply from the control panel, the control panel switch off
will result in the discontinuity of both rings connecting the control panels; one break does not
