GE XDP-H2, User Manual, Page: 86 / 96

January 2008
B-2 Additional Wiring Connections
XDP Alarm Relays
In addition to the alarm relays discussed in Chapter 2, Installation,
there are four supplemental alarm relays at terminal block J7.
•
Gas Curve Relay 1
•
Gas Curve Relay 2
•
Process/Cal Relay
•
Zero/Span Relay
Note:
Contact GE Sensing for information on the use and functions
of these alarms.
To wire the supplemental alarms, refer to Figure 2-2 on page 2-10 and
Table B-1 above. Then, complete the following steps:
Note:
A fail-safe alarm is wired to the normally-closed (NC)
contacts, while a non-fail-safe alarm is wired to the normally-
open (NO) contacts.
1.
For non-fail-safe operation, connect pin #1 to the alarm input.
2.
Connect pin #2 to the alarm device return.
3.
For fail-safe operation, connect pin #3 to the alarm input
Table B-1: Terminal Block J7 Connections
Pin # Alarm Terminal
1 Gas Curve Relay 1 NC
2 C
3 NO
4 Gas Curve Relay 2 NC
5 C
6 NO
7 Process/Cal Relay NC
8 C
9 NO
10 Zero/Span Relay NC
11 C
12 NO