138
7.4 P
OWER
SUPPLIES
/ T
RANSFORMER
ALS
20X
256
Fuses
The fuses F1 and F2 protect the primary wind-
ing of the transformer. Only one of the two fus-
es is in use at any time. Which fuse it is de-
pends on the position of the voltage selection
switch.
[141] Relationship between position of voltage selection switch and
which fuse is active.
The CPU board and sensors are protected by a sepa-
rate fuse in the switched-mode power supply, which
need never and must never be replaced.
If the fuse F1 or F2 is defective, only the drive motors
will be affected; the display and sensors will neverthe-
less remain operational.
Replacing fuses
WARNING!
The machine is connected with the mains
supply! Contact with energised components
can result in life-endangering currents
through the body as well as burns.
Ensure that the machine is switched off
and that the power cable is unplugged be-
fore you remove the fuse holder.
CAUTION!
Danger of fire if the wrong types of fuse are
put in.
Only replace fuses with the type specified
in this manual.
Tools: Screwdriver
Switch off the machine. Unplug the power supply
lead.
Turn the fuse holder several degrees anticlockwise.
– The fuse holder springs out.
Remove the fuse from the fuse holder.
Replace defective (blown) fuses
– Fuse type required: T5AH 250 V
– Original part when delivered from factory: „Bel Fuse
Type 5HT“ (Time-lag fuse, high-braking capacity)
Put the fuse holder back into place and turn clockwi-
se, pressing in gently, until the slot is vertical.
Active fuse
Mains voltage
Position of switch
F1
230 V
230
F2
110 V
115
Содержание ALS 204
Страница 1: ...ALS 204 206 256 SERVICE INSTALLATION MANUAL Labeller Edition 8 3 2012 Original version ...
Страница 2: ......
Страница 125: ...125 7 ELECTRONICS DESCRIPTION 7 3 CIRCUIT BOARDS ALS 20X 256 Layout diagram 125 Layout diagram for the CPU board ...
Страница 128: ...128 7 ELECTRONICS DESCRIPTION 7 3 CIRCUIT BOARDS ALS 20X 256 Layout diagram 129 Layout diagram for motor driver board ...
Страница 223: ......