PIM90.245
Feb. 2022 / Rev. 2.0 DS-PIM90.245-EN
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All parameters are specified at 24V, 3.8A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
21. Application Notes
21.1. CHARGING OF BATTERIES
Do not use the power supply to charge batteries.
21.2. SERIES OPERATION
Power supplies of the same type can be connected in series for higher output
voltages. It is possible to connect as many units in series as needed, providing the
sum of the output voltage does not exceed 150Vdc. Voltages with a potential
above 60Vdc must be installed with a protection against touching.
Avoid return voltage (e.g. from a decelerating motor or battery) which is applied
to the output terminals.
Keep an installation clearance of 15mm (left / right) between two power supplies
and avoid installing the power supplies on top of each other.
Do not use power supplies in series in mounting orientations other than the
standard mounting orientation.
Pay attention that leakage current, EMI, inrush current, harmonics will increase
when using multiple power supplies.
21.3. PARALLEL USE TO INCREASE OUTPUT POWER
Do not use this devices in parallel to increase the output power.
21.4. PARALLEL USE FOR 1+1 REDUNDANCY
Devices can be paralleled for 1+1 redundancy to gain higher system availability. Redundant systems require a certain
amount of extra power to support the load in case one device fails. The simplest way is to put two devices in parallel. This
is called a 1+1 redundancy. In case one device fails, the other one is automatically able to support the load current without
any interruption. It is essential to use a redundancy module to decouple devices from each other. This prevents that the
defective unit becomes a load for the other device and the output voltage cannot be maintained any more.
This device does not incorporate means to report a defective or non functional power supply. Since this is essential for
redundant systems, chose a redundancy module which monitors and reports an insufficient input voltage or use a power
supply, which has a DC-OK signal included.
21.5. TWO PHASE OPERATION
The power supply can also be operated on two phases of a three-phase-system.
Such a phase-to-phase connection is allowed as long as the supplying voltage is
below 240V
+10%
.
Ensure that the wire, which is connected to the N-terminal, is appropriately fused.
