EGCP-2 Engine Generator Control Package Manual 26174
32 Woodward
Process Import/Export Input
The EGCP-2 control can be configured to control any process that is determined
or affected by generator load. The Process Import/Export input is used by the
EGCP-2 control to sense the process level being controlled. This input can be
DIP switch, switch 4, configured to accept either a 4–20 mA or 1–5 Vdc signal.
Refer to Figure 3-4 for DIP switch location.
Process Input Ratings
Loop Voltage Source: External (4–20 mA), External (1–5 Vdc)
Input Impedance: 249 (4–20 mA), 30 000 (1–5 Vdc)
R
R
R
R
SW4-4
250
87
(-)
(+)
86
Process Import/Export Input
4-20 mA / 1-5 Vdc
Switch SW4-4:
Open for 1-5 volt input @ 30K ohms
Close for 4_20 mA @ 250 ohms
VIS-149
00-08-15
Figure 3-13a. Wiring Diagram for Process Import/Export Input
When connecting a kW transducer signal to multiple EGCP-2s, Woodward
recommends converting the 4–12–20 mA signal to a 1–3–5 Vdc signal by
connecting a 250 resistor across the output of the kW transducer. The Vdc
signal can then be paralleled to all EGCP-2 controls.
+
-
87 8687 8687 86
KW
Transducer
EGCP-2
250 ohm
EGCP-2
EGCP-2
VIS-153
01-05-21
Figure 3-13b. Connecting a kW Transducer Signal to Multiple EGCP-2s
(switch 4-4 is in the OPEN position)
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