Hitachi CENTRAL STATION PSC-A32MN Installations- Und Betriebshandbuch Seite 17

Electrical wiring
!
D A N G E R
• Turn OFF the main power switch for the indoor units, outdoor units, and central stations before the electrical wiring work is performed.
If not, it may cause a fire, electrical shock or device breaking down.
• Do not use cables that are lighter than the normal flexible coated polychloroprene cable (code H05RN-F).

Switch setting procedure
The list for switch settings of central stations is shown in the following table.
1 Apply switch settings as appropriate.
Switch
Switch
number
RSW1
-
(16-pole Rotary Switch)
1
DSW1
2
(4-pole DIP switch)
3
4
1
DSW2
(2-pole DIP switch)
2
SW1
?
N O T E
• Turn OFF the power supply when setting the DIP switches and the rotary switch. Do not touch the printed circuit board and metal parts directly to
avoid malfunction of the central station.
• When switching the setting for H-LINK II support, perform a checking procedure following "5.4.9 Checking Connection".
• If DSW1-1 is misconfigured, alarm 63 (Central Device Combination Fault) will be emitted from a central control device with H-LINK support. In this
case, turn OFF the power supply for all central control devices and correct the settings of each central control device. Then, restart the central
control devices.
• (*): When using several central stations at the same time, set the values of each "RSW1" not to overlap.
9 PMML0332A rev.0 - 05/2015
Usage
For address setting of central station
ON: Setting for no H-LINK II support
OFF: Setting for H-LINK II support
OFF (Fixed)
OFF (Fixed)
OFF (Fixed)
ON: Terminating resistance enabled
OFF: Terminating resistance disabled
ON: Protection fuse for H-LINK...Disabled (Short-
circuited)
OFF: Protection fuse for H-LINK...Enabled
(Normal)
ON: Turn the central station ON
OFF: Turn the central station OFF
Factory
Remarks
Setting
0 When using multiple central stations units. (*)
OFF Refer to the chart in the next page.
OFF Not used
OFF Not used
OFF Not used
Make sure that no other terminating
resistance exists on the same H-LINK when
OFF
enabling the terminating resistance from the
central station.
OFF
ON