Rockwell Automation Publication 1606-RM100A-EN-P - July 2020 25
Power Supply - 24V, 5 A, 120 W, Single-phase Input Reference Manual
Leakage current, EMI, inrush current, and harmonics will increase when using
multiple devices.
Parallel Use to Increase Output Power
Devices can be paralleled to increase the output power. The output voltage
shall be adjusted to the same value (±100 mV) with the same load conditions on
all devices, or the devices can be left with the factory settings. The ambient
temperature is not allowed to exceed 40 °C (104 °F).
If more than three devices are connected in parallel, a fuse or circuit breaker
with a rating of 10 A is required on each output. Alternatively, a diode or
redundancy module can also be utilized.
Energize all devices simultaneously. It can be necessary to cycle the input
power (turn-off for at least 5 seconds), if the output was in overload or short
circuits and the required output current is higher than the current of one unit.
Keep an installation clearance of 15 mm (0.59 in.) (left/right) between two
devices and avoid installing devices on top of each other. Do not use devices in
parallel in mounting orientations other than the standard mounting
orientation or in any other condition where a reduction of the output current
is required (for example, altitude).
Pay attention that leakage current, EMI, inrush current will increase when
using multiple devices.
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