Del Medical EPEX Omniflex IV, Service Manual

Page: 79 / 238

EPEX/Omniflex IV System Service Manual
Installing the System Hardware 3-31
Step Action
4 Verify that voltage at the main line fuses is at least 389
VAC. If it isn’t, then refer to the Three Phase Primary Tap
section in your generator service manual for direction.
5 Measure the line voltage across F4 and F6 on the driver/
auxiliary board in the HF power supply. Record the result.
Note: These fuses are located to the left of the main power
supply ground on the large circuit board.
6 Verify that this voltage is 400 Vac
±
10%.
If the voltage meets the requirement, write your initials on
the form.
If the voltage does not meet the requirement, the problem
must be fixed before you continue with this procedure.
7 Switch OFF the mains power to the Generator.
8 Verify that there is no voltage present across any of the
mains input phases.
If there is no voltage present across any of the mains
input phases,
write your initials on form.
If there is voltage present across any of the mains input
phases,
the problem must be fixed before you continue
with this procedure.
9 Replace the safety cover on the main input fuse block.
10 Switch ON the mains and Generator.
11 Verify that the red LED (DS1) located near the center of the
Generator interface board is lit.
If the LED is lit, write your initials on the form.
If the LED is not lit, the problem must be fixed before you
continue with this procedure.