Berthold castxpert LB 452, Operating Manual

Page: 133 / 156

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9 Maintenance
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Rev. 04, 03/2015
133
9.2 Replacing of Fuses
Attention
Damage to the device! Short circuit!
The modules can be damaged if the wrong fuses are used.

Only use fuses which correspond to the fuses on the modules.
Two different types of fuses are used in the EVU. These fuse the individual modules
and mains inlets:
Basic module
The two mains fuses Si1 and Si2
on the basic module fuse the cur-
rent input.
If there is a defect in one of the
two fuses, no signal can be trans-
mitted over the measurement
channels.
Basic module The 5 A fuse Si3
fuses the error re-
lay.
If there is a defect
in the fuses, the
error relay does
not work.
Extension
module The two 5 A fuses
Si3 and Si4 fuse
both alarm relays.
If there is a defect
in the fuses, the
alarm relay does
not work.