Woodward EGCP-2 - Page 44

EGCP-2 Engine Generator Control Package Manual 26086
36 Woodward
• Idle / Rated Switch
Defines Discrete Output #12 as an Idle / Rated speed switch. This output is
typically used to automatically send the engine speed control an idle/rated
command upon start up.
Uses the Idle Speed and Idle Time items in the Engine Control
Configuration Menu.
Speed Bias Type
• ±3 Vdc (WGC)
Sets the speed bias output to ±3 Vdc range. 0 Vdc is zero output,
–3 Vdc is –100% speed bias output,
+3 Vdc is +100% speed bias output.
• 0.5 to 4.5 Vdc (DDEC)
Sets the speed bias output to 0.5 to 4.5 Vdc range.
2.5 Vdc is zero,
0.5 Vdc is –100% speed bias output,
4.5 Vdc is +80% speed bias output.
• 500 Hz PWM (adem)
Sets the speed bias output to 500 Hz Pulse Width Modulated (PWM) range.
50% duty cycle = 0% speed bias output,
0% duty cycle = -100% speed bias output,
100% duty cycle = +100% speed bias output.
Voltage Bias Type
Sets the voltage bias output voltage range.
• ±9 Vdc Bias
0 Vdc = 0% voltage bias
–9 Vdc = -100% voltage bias
+9 Vdc = +100% voltage bias
• ±3 Vdc Bias
0 Vdc = 0% voltage bias
–3 Vdc = -100% voltage bias
+3 Vdc = +100% voltage bias
• ±1 Vdc Bias
0 Vdc = 0% voltage bias
–1 Vdc = -100% voltage bias
+1 Vdc = +100% voltage bias
Circuit Breaker Control (Breaker/Contactor)
• Defines action of Generator and Mains closure command.
• Breaker issues momentary breaker close signal, and a separate momentary
breaker trip (open) signal. Get complete logic for Generator and Mains
breaker commands in manual 26076 under “Relay Output Functions.”
• Contactor issues continuous breaker close signal through the breaker close
relay output, DO2 for Generator and DO1 for the Mains. Get complete logic
for the generator and mains contactor commands in manual 26076 under
“Relay Output Functions.”