EGCP-2 Engine Generator Control Package Manual 26174
38 Woodward
Discrete Inputs
Do NOT apply external power to the Discrete Inputs. The application
of an external voltage to terminal 65 will result in permanent damage
to the control.
Discrete inputs are used by the EGCP-2 control to determine breaker positions
and accept external control commands. Contacts must change state for a
minimum of 40 milliseconds for the control to sense and register a change in
state. All discrete inputs accept dry contacts only, with contact wetting voltage
provided by the EGCP-2 control. The following is a list of the available EGCP-2
Discrete Inputs:
ID # Description
1. Automatic Mode Select
2. Test Engine Mode Select
3. Run with Load Mode Select
4. Voltage Raise
5. Voltage Lower
6. Speed/Load Raise
7. Speed/Load Lower
8. Generator Breaker Aux Contact
9. Utility (Mains) Breaker Aux Contact
10. Process I/E Mode Select
11–16. Configurable Alarm or Shutdown Inputs
Discrete Input Ratings
Number of Channels: 16
Input Type: Optically isolated
Min Closed Sense Time: 40 ms
Speed/Load Raise and Lower Inputs
The Speed/Load Raise and Lower inputs change based on the control mode of
the EGCP-2. If the EGCP-2 control is in the Speed control mode (generator
breaker open), these contact inputs can be used to raise and lower speed. If the
EGCP-2 control is in the Baseload control mode (generator breaker closed, utility
tie breaker closed), these contact inputs can be used to raise and lower unit
baseload. If the EGCP-2 control is in the Process control mode (Process control
enabled), these contact inputs can be used to raise and lower the process set
point. If the EGCP-2 control is in the isochronous load sharing mode
, the Speed
Raise and Lower inputs are disabled.
Voltage Raise and Lower Inputs
The Voltage Raise and Lower inputs change based on the control mode of the
EGCP-2. If the EGCP-2 control is in the Speed control mode (generator breaker
open), these contact inputs can be used to raise and lower unit voltage. If the
EGCP-2 control is in the VAR control mode (VAR control programmed, generator
breaker closed, utility tie breaker closed), these contact inputs can be used to
raise and lower unit VARs. If the EGCP-2 control is in the Power Factor control
mode (Power Factor control programmed, generator breaker closed, utility tie
breaker closed), these contact inputs can be used to raise and lower unit Power
Factor. If the EGCP-2 control is in the isochronous load sharing mode
, the
Voltage Raise and Lower inputs are disabled.
Gen, Tie, Alarm, and Shutdown Inputs
The Generator Breaker contact input must be wired so it is closed when the
generator breaker is closed.
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