12.3.2. Fuse replacement
12.3.2.1. Replace fuses F1/F2
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.
12.3.2.2. Test/replace fuses F3/F4
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:
Check fuses.
2. The power supply unit has measuring points (solder pins) allowing to perform
a resistance (continuity) measurement:
Table 37:
Measuring pointsChecking
MTP1 – MTP2F1
MTP3 – MTP4F2
MTP5 – MTP6F3
MTP7 – MTP8F4
83
SQEx 05.2 – SQEx 14.2/SQREx 05.2 – SQREx 14.2 Control unit: electronic (MWG)
ACExC 01.2 Non-Intrusive Profibus DP Corrective action
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