GE Industrial Solutions ZBTE Series - Manual (Page 14)

91 R -1000 Page 12 Zenith ZTE/ZBTE Series Operation & Maintenance Manual
Figure 12
Connection Points for Universal Transformer Assembly (UTA)
Figure 13
Connection Points on Test Plug for Universal Transformer Assembly (UTA)
120VAC Aux Input
(customer supplied) (not obligatory)
(See Note 1)
24VDC output from
UTA to I/O relays
170VDC output
from UTA to
MX350 controller
Source 1
voltage input
Test points
Source 2
voltage input
24VDC Aux Input (ungrounded)
(customer supplied) (not obligatory)
(See Note 1)
Plug position
Test point
Plug position
Test point
20
TP1
19 18
TP3
17 16
TP5
15 14
TP7
13 12
TP9
11
10 9
TP2
8 7
TP4
6 5
TP6
4 3
TP8
2 1
TP10
Plug position Test point Test Connection Points Value Measured
1 TP10 TP1-TP2 Line AC voltage input from Source 1
2 — TP2-TP3 Voltage drop across R1
3 TP8 TP4-TP5 24 VAC to output from Source 1 to input/output relays
4 — TP6-TP7 Line AC voltage input from Source 2
5 TP6 TP7-TP8 Voltage drop across R2
6 — TP9-TP10 24 VAC to output from Source 2 to input/output relays
7 TP4
8 —
9 TP2
10 —
11 —
12 TP9
13 —
14 TP7
15 —
16 TP5
17 —
18 TP3
19 —
20 TP1
View looking into plug
UTA
metal
cover
UTA PC board
Note 1: Both Aux inputs must be supplied from an uninterrupted power
source. Supplying only one Aux input may result in malfunction.