Operating instructions
4
Introduction
All new Current Mode switching design offers increased power and reliability in a compact
package. Extra input and output ltering reduce EMI to extremely low levels. Reliability
features include an input fuse, thermal shutdown, current limiting and output short circuit
shutdown with automatic recovery. The output voltage is easily adjusted 1.0 volts above or
below the standard output voltage. The model PWS1000 Power Supply supplies either 12,
24 or 48 VDC from a 110 or 220 VAC power source. High quality digital meters can be added
(factory option) to allow monitoring of charging current and charging voltage. Other output
voltages up to 72 volts are also available by special order.
Specications
Input Voltages
Nominal (ip)
110Vac 220Vac
Actual
90 - 130Vac 180 - 260Vac
Input Amps (max)
13.2(12V) / 17(24/32/48V) 6.6(12V) / 8.5(24/32/48V)
Input Fuse (slow blow)
MDA-20(12V) / MDA-25 (24/32/48V) MDA-10(12V) / MDA-15(24/32/48V)
Output Voltages
Nominal (op) 12Vdc 24Vdc 32Vdc 48Vdc
Actual 13.6 ± 0.05Vdc 27.2 ± 0.05Vdc 36.3 ± 0.05Vdc 54.4 ± 0.10Vdc
Adjust ± 1.0 Vdc
Output Crowbar 16.0 ± 0.5 Vdc 32.0 ± 1.0 Vdc 42.7 ± 1.3 Vdc 63.9 ± 2.0 Vdc
Output Amps (cont) 60 40 30 20
Output Amps (max) 70 45 34 22.5