Dip Switch Adjustment - Hitachi PC-ARF Technical Catalogue

7 Gateways for building management systems
HARC-BX E

7.4.3.4 DIP switch adjustment

The DIP switches are inside the central HARC-BX E control between the terminal board and the PCBs. The first column of
DIP switches (S201) are used to programme the numbers of the outdoor units and indoor units, and the second column of
DIP switches (S202) are used to programme the master and slave controls.
There are two group of 8 DIP switches, which relate to the PCBs, the first line of DIPs with the first PCB and so on.
N O T E
The DIP switches are all deactivated before they are sent from the factory.
1 Configure the DIP switches before turning the power supply on.
2 Remove the front board to the configure the DIP switches.
3 Each board's DIP switch configuration is different.
4 Set the 8 pin DIP switch (S201). The first four pins of the 8 pin DIP switch (S201) are used to set the outdoor unit and
the second four pins are used to set the indoor units controlled by the PCB.
The setting procedure for the outdoor unit number and indoor unit number can be seen in the following table.
8 pin DIP switch setting
(S201)
ON 1 2 3 4 5 6 7 8
No. IU
No. OU
The following table explains how to programme the outdoor unit numbers. Up to 16 numbers can be programmed:
OU
Pin setting
No.
0
ON 1 2 3 4 5 6 7 8
1
ON 1 2 3 4 5 6 7 8
2
ON 1 2 3 4 5 6 7 8
3
ON 1 2 3 4 5 6 7 8
The following table explains how to programme the numbers of the indoor units controlled for each board:
HARC-BX (A)
Indoor units
from 0 to 7
(8 IU)
from 8 to 15
(8 IU)
The position of the switch indicates the address of the first indoor unit for this group of 8 units in the case of the HARC-
BX(A) or the first indoor unit for the group of 4 units in the case of the HARC-BX(B).
Only the address indicated in the table above can be used for each group.
674 674
TCGB0106 rev.0 - 12/2014
The 8 pin DIP switch (S201) setting is determined by the numbers of the outdoor units (OU) and the
numbers of the corresponding indoor units (IU) controlled by the PCB.
OU
Pin setting
No.
4
ON 1 2 3 4 5 6 7 8
5
ON 1 2 3 4 5 6 7 8
6
ON 1 2 3 4 5 6 7 8
7
ON 1 2 3 4 5 6 7 8
Pin setting
ON 1 2 3 4 5 6 7 8
ON 1 2 3 4 5 6 7 8
Description
OU
Pin setting
No.
8
ON 1 2 3 4 5 6 7 8
9
ON 1 2 3 4 5 6 7 8
10
ON 1 2 3 4 5 6 7 8
11
ON 1 2 3 4 5 6 7 8
HARC-BX (B)
Indoor units
from 0 to 3
(4 IU)
from 4 to 7
(4 IU)
from 8 to 11
(4 IU)
from 12 to 15
(4 IU)
OU
Pin setting
No.
12
ON 1 2 3 4 5 6 7 8
13
ON 1 2 3 4 5 6 7 8
14
ON 1 2 3 4 5 6 7 8
15
ON 1 2 3 4 5 6 7 8
Pin setting
ON 1 2 3 4 5 6 7 8
ON 1 2 3 4 5 6 7 8
ON 1 2 3 4 5 6 7 8
ON 1 2 3 4 5 6 7 8