Service manual

4
Servo Ventilator 300/300A Service procedures
E382 E380E 061 01 03 01 Siemens-Elema AB 105
Selecting the address code
The ventilators address code is selected
with two switches SW1 and SW2 on
PC 1587 COMPUTER INTERFACE.
The switches are located above SERIAL
COMMUNICATION
PORT 1 and they are accessible
when the upper cover is opened.
The address code (device No.) can be
selected between 00 and 99. The lower
switch (SW2) sets the first digit and the
upper switch (SW1) sets the second digit.
The address code selected in the illustration
is 10.
Selecting the voltage setting
• Disconnect the mains power cable from
the ventilator.
• Open the cover (1).
• Remove the drum (2), turn the drum to the
selected voltage and put it back in this
new position.
Mains power voltage Selector setting
100 V (±10%) 100 V
120 V (±10%) 120 V
220 V (±10%) 220 V
230 V (±10%) 220 V (see note below)
240 V (±10%) 240 V
• Check that the fuses (F11 and F12) corres-
ponds with the selected mains power
voltage (see section ”Replacing the
fuses” in this chapter).
• Close the cover (1). The selected voltage
is shown in the cover window.
Note – In many countries where the nominal
mains power voltage is 230 V, the actual
voltage is found to vary within a higher
voltage range than specified for the selector
setting 220 V. In such case, the selector
setting for 240 V is recommended.
2
1
F11
F12
300-A52X
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
300-A51X
5