HAT552/HAT553 DUAL POWER ATS CONTROLLER USER MANUAL
HAT552/HAT553 ATS Controller 2020-05-14 Version 1.1 Page 16 of 35
No.
Item
Range
Default
Description
14
Under Volt Return
(0~200)%
85
Lower limit return value; normal when it is above
return value.
15
Rated Frequency
(10.0~75.0)Hz
50.0
Rated frequency value for AC system
16
Over Freq. Set
(0~1)
1
0: Disable
1: Enable
17
Over Freq. Value
(0~200)%
110
Frequency upper limit; abnormal when it is
above upper limit.
18
Over Freq. Return
(0~ 200)%
104
Upper limit return value; normal when it is lower
than return value.
19
Under Freq. Set
(0~1)
1
0: Disable
1: Enable
20
Under Freq. Value
(0~ 200)%
90
Frequency lower limit value; abnormal when it is
lower than this limit.
21
Under Freq. Return
(0~ 200)%
96
Lower limit return value, normal when it is above
return value.
22
Loss of Phase
(0~1)
1
0: Disable
1: Enable
23
Phase Sequence Wrong (0~1)
1
0: Disable
1: Enable
24
PT Fitted
(0-1)
0
0: Disable
1: Enable
25
PT Primary Volt
(30-30000)V
100
26
PT Secondary Volt
(30-1000)V
100
Switch Setting
1
Close Delay
(0.1~20.0)s
5.0
Pulse time for close relay output; continuous
output when it is 0.
2
Open Delay
(0.1~20.0)s
5.0
Pulse time for open relay output; continuous
output when it is 0.
3
Transfer Interval
(1~9999)s
1
Waiting delay time from A open to B close, or B
open to A close (HAT553).
4
Again Close Delay
(0~20.0)s
1.0
For the first time switch open failed, then it
closes again and close again delay starts; when
delay is over, it opens again; if it cannot open,
then it issues failed to open alarm signal.
5
Again Open Delay
(0~20.0)s
1.0
For the first time switch close failed, then it
opens again and open again delay starts; when
delay is over, it closes again; if it cannot close,
then it issues failed to close alarm signal.
(HAT553)
6
Switch Type
(0~2)
0
0: Two Breaking
1: One Breaking
2: No Breaking
(HAT553)
7
Forced Open Action
(0~1)
0
0: Warning
