Table of Contents
Advertisement
Voltage Input
Source 1
Voltage Input
Note 1: Both Aux inputs (120VAC and 24VDC) must be supplied from an uninterrupted power source. Supplying only one Aux input may result in malfunction.
Plug Position
20
19
Test Point
TP1
Plug Position
10
9
Test Point
TP2
Plug Position
Test Point
1
TP10
2
–
3
TP8
4
–
5
TP6
6
–
7
TP4
8
–
9
TP2
10
–
11
–
12
TP9
13
–
14
TP7
15
–
16
TP5
17
–
18
TP3
19
–
20
TP1
Zenith Automatic Transfer Switch
Source 2
24VDC Aux Input (Ungrounded)
(Customer Supplied) (Not Obligatory)
(See Note 1)
Test Points
Figure S6-23: Connection Points for Universal Transformer Assembly (UTA)
18
17
16
TP3
TP5
8
7
6
TP4
Test Connection Points
TP1-TP2
TP2-TP3
TP4-TP5
TP6-TP7
TP7-TP8
TP9-TP10
Figure S6-24: Connection Points on Test Plug for Universal Transformer Assembly (UTA)
|
new.abb.com/low-voltage
120VAC Aux Input
(Customer Supplied) (Not Obligatory)
(See Note 1)
24 VDC Output from
UTA to I/O relays
15
14
13
12
TP7
TP9
5
4
3
2
TP6
TP8
Value Measured
Line AC Voltage Input from Source 1
Voltage Drop Across R1
24 VAC to Output from Source 1 to Input/Output Relays
Line AC Voltage Input from Source 2
Voltage Drop Across R2
24 VAC to Output from Source 2 to Input/Output Relays
170VDC Output
UTA PC Board
from UTA to
MX350 Controller
11
View Looking Into Plug
1
TP10
UTA
Metal
Cover
54
Advertisement
Table of Contents
