Chapter 6 ______________________________________________________________Maintenance
VAISALA______________________________________________________________________ 195
Changing the Power Supply Set
1. Turn off the AC (mains) power to AWS330, that is, switch off the
external AC (mains) inlet.
2. Unscrew the right-hand side installation plate and flip it down.
3. Remove the power supply set connectors.
4. Remove the cables from the screw terminals and the surge
protector below the power supply units.
5. Remove the four screws (number 1 in Figure 114 below) in the
power supply set (2).
6. Remove the power supply fixing plate set (5) with power supplies,
terminals, and surge protector.
7. Replace the faulty power unit from the fixing plate.
8. Install a base plate set back in reverse order.
1012-202
Figure 114 Removing Power Supply Set
The following numbers refer to Figure 114 above:
1 = Screw M6x12 ISO7380 A4, 4 pcs; use Allen key 4 mm
2 = Power supply set
3 = AC power supply 36 VDC 60 W
4 = AC power supply 15 VDC 60 W
5 = Fixing plate
6 = M3x6 DIN7985 A4, 4 pcs; use crosshead screwdriver
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