User's Manual

12 Channel Channelised Cell Enhancer
User Handbook
Handbook N.-50-122501HBK Issue No:-A
Date:-16/03/05
Page:-
32 of 40
4.13 24V, 400W Power Supply Pack (96-300054)
4.13.1 Description
The main 24V power supply unit is a switched-mode type capable of supplying 24V DC at
17.0Amps continuously. Equipment of this type typically requires approximately 12.0 Amps
at 24V DC, so the PSU will be used conservatively ensuring a long operational lifetime.
No routine maintenance of the PSU is required. If a fault is suspected, then the output voltage
from the power supply may be measured on its output terminals. This is typically set to
24.5V using the multi-turn potentiometer mounted close to the DC output studs on the PSU
PCB.
All the PSU’s used in AFL Cell Enhancers are capable of operation from either 110 or 220V
nominal AC supplies. The line voltage is sensed automatically, so no adjustment or link
setting is needed by the operator.
4.13.2 Technical Specification
AC Input Supply
110 or 220V nominal
Voltages:
90 to 132 or 180 to 264V (absolute limits)
Frequency: 47 to 63Hz
DC Output Supply:
24V DC (nominal)
Voltage:
20 to 28V (absolute limits)
Maximum current: 17A