ATS 420 ATS CONTROLLER USER MANUAL
10
No.
Function
Description
Cable cross
sectional area
1
S1 Close Output
Non-contact normally Open output
Capacity: 250V/10A
1.5mm
2
2
1.5mm
2
3
S2 Close Output
Non-contact normally Open output
Capacity: 250V/10A
1.5mm
2
4
1.5mm
2
5
Aux.
Output 1
Normally Close
250V/5 AMP Relay contact Output
1.5mm
2
6
COM
1.5mm
2
7
Normally Open
1.5mm
2
8 A1
S1 AC System 3P4W voltage input
For single phase, only connect A1, N1
1.5mm
2
9 B1
1.5mm
2
10 C1
1.5mm
2
11 N1
1.5mm
2
12 A2
S2 AC System 3P4W voltage input
For single phase, only connect A2, N2
1.5mm
2
13 B2
1.5mm
2
14 C2
1.5mm
2
15 N2
1.5mm
2
16 B-
Connected with negative of starter battery. 1.5mm
2
17 B+
Connected with positive of starter battery.
1.5mm
2
18 S1 Close Output
Detect the S1 ATS closing status,
Ground connected is active.
1.5mm
2
19 S2 Close Output
Detect the S2 ATS closing status,
Ground connected is active.
1.5mm
2
20 Aux. Input 1
User-defined.
Ground connected is active.
1.5mm
2
21 Aux. Input 2
1.5mm
2
22 RS485_B-
RS485 Communication Port
A 120 Ω shielded wire and good grounding
are recommended
1.0mm
2
23
1.0mm
2
24 RS485_SCR
1.0mm
2
25
Aux.
Output 2
Normally Close
Default: ATS Power L
250V/5AMP Relay contact Output
1.5mm
2
26
COM
1.5mm
2
27
Normally Open
1.5mm
2
28
Aux.
Output 3
Normally Close
Default: ATS Power N
250V/5AMP Relay contact Output
1.5mm
2
29
COM
1.5mm
2
30
Normally Open
1.5mm
2
USB-B
For PC operation and control
