Power Wiring - Honeywell ML200 Series Installation And Commissioning Manual

Chapter 3 - Plan and Install MLPLC
ATTENTION
Current leakage may occur if the wiring is connected for distances greater than 200m. This may
be caused by the capacitance.

Power wiring

Perform the following steps for power wiring.
1. Connect a voltage regulated transformer, if the power variance is higher than the specified
range.
2. In case of excessive interference (noise), use an isolation transformer.
The following figure illustrates the distributions of AC 220V for PLC power supply, I/O modules, and
other main circuit equipment.
3. While using power module of DC 24V output:
a. Do not connect the module, in parallel with the output of several power modules.
b. If DC 24V output capacity of a power module is not sufficient for the PLC I/O modules,
supply the external DC 24V power, as displayed in the following figure.
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