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HAT553V ATS Controller User Manual Page 28 of 32
Table 21 Terminal Function Description
No.
Item
Function Description
Remark
1
A-CLOSE OUTPUT
Free voltage relay output
A close relay, capacity 10A, connect to
OUT COM.
2
B-CLOSE OUTPUT
Free voltage relay output
B close relay, capacity 10A, connect to
OUT COM.
3
A-OPEN OUTPUT
Free voltage relay output
A open relay, capacity 10A, connect to
OUT COM.
4
B-OPEN OUTPUT
Free voltage relay output
B open relay, capacity 10A, connect to
OUT COM.
5
OUT COM
Output common port
6
NULL
Null terminal
7
LO
ATS power supply L
Provide power supply for ATS.
8
NO
ATS power supply N
9
NO
10
BR
B-VOLTAGE
INPUT
AC 3 Phase 4 Wire voltage
input of B power
For single phase input, only connect BR
and BN.
11
BS
12
BT
13
BN
14
AR
A-VOLTAGE
INPUT
AC 3 Phase 4 Wire voltage
input of A power
For single phase input, only connect AR
and AN.
15
AS
16
AT
17
AN
18
GENSET START
Start control output port
N/C output, capacity 8A.
19
20
AUX.OUTPUT
Programmable output 1
Default: common alarm output, N/O
output, capacity 10A.
21
22
SCR
RS422 communication port Communication port.
23
Y
24
Z
25
B
26
A
27
A-CLOSE INPUT
Check #1 switch closing
status, passive contact input
Active when connect to input common
port.
28
IN COM
Input common port
29
B-CLOSE INPUT
Check #2 switch closing
status, passive contact input
Active when connect to input common
port.
30
FORCE OPEN INPUT
Forced to Open input
Active when connect to input common
port.
31
IN COM
Input common port
32
AUX. INPUT
Programmable output 1
Default: none used, active when connect
to input common port.