Fuse Replacement; Replace Fuses; Test/Replace Fuses - AUMA SQEx 05.2 Operating Instructions Manual

SQEx 05.2 SQEx 14.2/SQREx 05.2
ACExC 01.2 Non-Intrusive Profibus DP
12.3.2.

Fuse replacement

12.3.2.1. Replace fuses F1/F2
12.3.2.2. Test/replace fuses F3/F4
Check fuses.
SQREx 14.2 Control unit: electronic (MWG)
Information: Only valid for version with electrical connection of KES type, KT
type or KL type
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 88:
2. Pull fuse holder out of pin carrier, open fuse cover and replace old fuses by
new ones.
Information: For version with electrical connection type KP/KPH, the fuses
(F1/F2) are also located on the PSU board.
1. Loosen screws [1] and remove cover [2] on the rear of the actuator controls.
Figure 89:
2. The power supply unit has measuring points (solder pins) allowing to perform
a resistance (continuity) measurement:
Table 37:
Checking
F1
F2
F3
F4
Measuring points
MTP1 MTP2
MTP3 MTP4
MTP5 MTP6
MTP7 MTP8
Corrective action
83