Mitsubishi Electric CRHV-P600YA-HPB, Service Handbook

Page: 31 / 170

[
II
Restrictions ]
- 24 -
HWE1312A GB
Setting the switches on all sub units
MAIN circuit
(1) Set the dip switch SW2-9 to ON. (multiple unit
control) (labeled A in the figure at right)
(2) Set the MAIN circuit addresses with the rotary
switches. (labeled B in the figure at right). Set
the 10's digit with SWU1, and set the 1's digit
with SWU2. Assign sequential addresses to
the MAIN circuit on all sub units starting with 2.
SUB circuit
(3) Set the dip switch SW2-6 to OFF. (power
supply to communication circuit) (labeled C in
the figure at right)
(4) Set the SUB circuit addresses with the rotary switches (labeled D in the figure above). Set the 10's digit with
SWU1, and set the 1's digit with SWU2. Assign sequential addresses to the SUB circuit on all sub units starting
with 52.
2. Switch on the power to the unit.
Check for loose or incorrect wiring, and then
switch on the power to all units.
When the power is switched on, the following
codes will appear on the LED:
• [EEEE] will appear on LED1 in the MAIN
circuit board.
• [9999] will appear on LED1 in the SUB circuit
board on the main unit and both MAIN and
SUB circuits on the sub units.
3. Set the preset values with the switches on the MAIN circuit board.
(1) Press either one of the push switches SWP1, 2, or 3 (labeled A in the
figure at right) on the MAIN circuit board.
* [EEEE] will disappear, and an item code ([101]) will appear on LED1
(labeled B in the figure at right).
(2) Use SWP3 to toggle through the item codes, and select an item code to
change its current value. (The item codes will appear in the following
order: [101] →[102]→[104]→[107]→[101] (back to the beginning).)
(3) Use SWP1 to increase the value and SWP2 to decrease the value.
(4) Press SWP3 to save the changed value.
Following the steps above, set the value for the following items with the
switches on the MAIN circuit as necessary. Item [107] must be set when multiple units are connected to a system.
[101] Not used
[102] Not used
[104] Not used
[107] Total number of the main and sub units in the system
A B D C
Sub unit (MAIN circuit) Sub unit (SUB circuit)
10’s digit (0) 1’s digit (1) (0) 10’s digit (5) 1’s digit (1) (0)
[EEEE] [9999]
Main unit (MAIN circuit) Main unit (SUB circuit)
Sub unit (MAIN and SUB circuits)
10’s digit (0) 1’s digit (1) (0) 10’s digit (5) 1’s digit (1) (0)
Switch
Settings
depend on
the unit.
A
B
10’s digit (0) 1’s digit (1) (0)