Fuse Replacement; Replace Fuses; Test/Replace Fuses - AUMA SA 07.2 Operation Manual

Corrective action
12.3.2.

Fuse replacement

12.3.2.1. Replace fuses F1/F2
12.3.2.2. Test/replace fuses F3/F4
Check fuses.
86
SA 07.2 SA 16.2 / SAR 07.2
Electric shock due to presence of hazardous voltage!
Death or serious injury.
Disconnect device from the mains before opening.
1. Remove electrical connection from actuator controls.
Figure 82:
2. Pull fuse holder out of pin carrier, open fuse cover and replace old fuses by
new ones.
1. Loosen screws [1] and remove cover [2] on the rear of the actuator controls.
Figure 83:
2. The power supply unit has measuring points (solder pins) allowing to perform
a resistance (continuity) measurement:
Table 41:
Checking
F3
F4
3. To replace defective fuses: Carefully loosen power supply unit [3] and pull out.
(The fuses are on the equipped part of the power supply board.)
Cable damage due to pinching!
Risk of functional failures.
Carefully assemble power supply unit to avoid pinching the cables.
SAR 16.2 Control unit: electronic (MWG)
AC 01.2 Non-Intrusive DeviceNet
Measuring points
MTP5 MTP6
MTP7 MTP8