Chapter F - ADJUSTMENTS
Planmeca Compact i F-25
ELECTRICAL ADJUSTMENTS
Technical Manual
2.4 Rewiring mains voltage selection jumper
WARNING
Erroneously wired voltage selection jumper may cause serious damage to the
equipment.
The mains voltage selector jumper (connector P21 on the Main control PCB) is used to select
the transformer winding to correspond with the mains voltage. Since the transformer is con-
nected using the back-to-back method, the same transformer can be used for different mains
voltages. Voltage selection jumpers for different mains voltages can also be ordered as spare
parts.
a) Select the mains voltage by connecting pin 3 and one of the pins 4…6 together.
The same voltage setting jumper is also used to bypass the neutral line fuse. In some areas it
is not allowed to have a fuse in the neutral wire, thus the neutral line fuse must be bypassed.
b) Bypass the neutral line fuse by connecting the pins 1 and 2 together.
CONNECTED PINS
SELECTED MAINS
VOLTAGE
3 & 6 100V~
3 & 5 115V~
3 & 4 220-240V~
6
5
4
3
2
1
NEUTRAL LINE
FUSE BYPASS
100V~
115V~
220-240V~
COMMON
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