13
H4-72-02-03
For internal use only
5.8
Checking the power connection
The following approximate voltages must be measured on the connection points when the mains plug is
plugged in or when the mains cable has been connected.
400 V mains, 3-phase (most widely used in Germany and Europe)
230 V mains, 3-phase (still used in parts of Europe, e.g. in France and Belgium)
230 V mains, 2-phase, symmetrical voltage distribution (still used in parts of Europe, but
seldom, e.g. in France and Belgium)
The functioning of the appliance is limited with this power supply. Running deviations of the clock in the
minute section per day, since the clock reference cannot be taken from the power frequency. The clock
reference in this case is the internal processor clock.
Please note!
The F901 (8A) fuse is not a part of the power unit. It is in the electric circuit of the MW
power supply.
When the fuse is triggered the electronic module (relay board) must not generally be
replaced. The MW components will need to be checked for a fault and the fault rectified.
(Exception: The short circuit has damaged the strip conductors (visual check).
Terminals
Reading
X19 / X20
30 V~ or 240 V~
X19 / X18
approx. 0 V
or
230 V~ or 240 V~
X20 / X18
230 V~ or 240 V~
approx. 0 V
Terminals
Reading
X19 / X20
230 V
X19 / X18
133 V~
X20 / X18
133 V~
Terminals
Reading
X19 / X20
230 V~
X19 / X18
115 V~
X20 / X18
115 V~
