Parallel use to increase power
PS2001-2420-1001 power supplies can be connected in parallel to increase the output power.
- 1. The output voltage of all power supplies must be set to the same value (±100 mV) in "Single Use" mode and with the same load conditions on all units, or the units can be left with the factory settings.
- 2. After the adjustments, set the unit to “Parallel Use” mode (see chapter Parallel Use), in order to achieve load sharing. The “Parallel Use” mode regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load, see also chapter Output.
- 3. The ambient temperature is not allowed to exceed +60°C.
- 4. If more than three units are connected in parallel, a fuse or circuit breaker with a rating of 30 A or 32 A is required on each output. Alternatively a diode can be used.
- 5. Energize all devices simultaneously. It may also be necessary to ramp up and shut down the input power (turn off for at least five seconds) if the output was overloaded or short-circuited and the required output current is higher than the current of a device.
Restrictions:
- Keep an installation clearance of 15 mm (left / right) between two power supplies.
- Do not install the power supplies on top of each other.
- Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.
