CPS-A USER MANUAL
ISPB028 R1
Page 8
Illustration showing External dimensions and DIN Rail mounting
5
Operation
WARNING!
The CPS-A has no user serviceable parts. All repairs must be carried out by Ampcontrol
personnel only. If a fault develops return the CPS-A to Ampcontrol for repair. It is
essential that no attempt be made to repair the CPS-A as any attempt to dismantle or
repair the CPS-A can seriously compromise the safety of the unit and the consequence
can be fatal.
The power supply is of an active type and exhibits very low output impedance. The output voltage is reduced by only 0.3V at full
load. Precise active current limiting provides maximum available current up to the Io parameter. The power supply output acts
as a current limited voltage source. The load impedance can vary down to short circuit while the maximum output current is
maintained. The red overload LED on the facia lights up when operating in current limit.
The OUTPUT LED is driven directly by the output voltage. If the Power Supply is in current limit mode the OUTPUT LED
reduces in intensity with the lower output voltage. The OUTPUT SWITCH LED confirms that the internal control circuit is healthy
and the output is active. The OUTPUT SWITCH LED turns off when mains power is removed or if a fault occurs.
CAUTION!
If mains power is healthy but the OUTPUT SWITCH indicator is OFF, this indicates a fault
has developed. Return the power supply to Ampcontrol for repair.
Note ventilation slots (Top and bottom)
