HAT220A/HAT240A Automatic Transfer Switch Controller
HAT220A/HAT240A ATS Controller ISSUE 2011-05-20 Version1.1 Page 8 of 11
7
Voltage upper limit
value
(50~300)V
264V
It can only be set via
PC
8
Voltage lower limit
value
(50~300)V
172V
9
Transfer priority
1# priority,
2# priority,
no priority
1# priority
It can be set via
controller
panel
potentiometer or PC
10
AC option
3 phase 4 wire
Single-phase 2
wire
3 phase 4 wire
It can only be set via
PC
Note:
In the above table of ten items, select
“3-phase 4-wire” is used to HAT220A;
select “single-phase 2-wire” when used HAT240A controller.
7 OPERATION CONTROL
Auto/Manual operation,
When controller in running, press
key to transfer controller into Auto or Manual mode
(Mode is indicated by lamps of Auto and Manual). In Manual mode, press
key, load
transfer into #I power supply side and press
key, load transfer into #II power supply
side.
Procedures of
setting “#I power supply priority”, “#II power supply priority” and
“No priority” show as following:
a) Press
key,
key and
key simultaneously, when #I power supply indication
lamp, automatic status indication lamp and #II power supply indication lamp
illuminate simultaneously, loose
key,
key and
key, then automatic
status indications lamp and #II power supply indication lamp will not illuminate, #I
power supply indication lamp illuminate, then controller enters into setting priority
status.
b) Press
key can circularly set three priority status:
1) When #I power supply indication lamp illuminate, at the same time #II power
supply indication lamp isn
’t illuminate , for #I transfer priority;
2) When #II power supply indication lamp illuminate, at the same time #I power
supply indication lamp isn
’t illuminate , for #II transfer priority;
3) When #I power supply indication and #II power supply indication lamp illuminate
