5
Logic Board & Wiring Diagram
The DNGP is equipped with two terminal boards. Terminal
board #1 has 10 connections and terminal board #2
has 14 connections. Terminal board #2’s connections
are associated with the main user interface signals (limit
switches, power inputs, position feedback inputs, etc.),
while terminal board #1 applies to other interface signals
(transmitter position inputs, solenoid inputs, heaters, etc.).
A complete logic board layout, and wiring guide for both
terminals is given on pages 6 and 7 respectively.
Jumpers & Fuses
A look at the logic board layout on page 7 shows the
location of the jumpers JP1 and JP2. The selection of the
jumpers depends on the power of the transmitter. If the
transmitter doesn’t need external power, select JP1 - 1,
2. If the transmitter needs external power, select JP1 - 2,
3, or remove the jumper. The jumper JP2 functions only
as a spare replacement for JP1. There are 4 fuses on the
DNGP logic board. The first fuse F1 is 0.1 Amperes, and
serves as the PTC fuse for a 4-20 mA signal current loop.
F2 is 0.1 Amperes, and serves as the PTC fuse for a 4-20
mA transmitter/ positioner current loop. The fuses F1 and
F2 are resettable. F3 is a 3 Ampere fuse for the voltage
input power. Finally, F4 is a 3 ampere replacement fuse
for F3.
Figure 2 -
Terminal Board #1 (10 Pins) & Terminal Board #2 (14 Pins)
Note 1: Check RTU manual for correct polarity before connecting to terminal.
Note 2: Jumper must be installed between pins 5 & 6 if feedback is not connected.
