Woodward QuickTrip - Page 48

Manual 26815 QuickTrip Electro-Hydraulic Trip Block Assembly
Woodward 45
Table 7-1. QuickTrip Troubleshooting Guide (continued)
Run LED indicator is not
on
Power supply is not turned on or
wiring is not connected
Check power source and connections
(Chapter 2: Electrical Specifications).
Power supply voltage or current are
below recommended ratings
Valve is in a tripped state
Verify that speed sensors and logic solver are
functioning correctly and that all wiring
connections are correct
Position lever/magnet not correctly
positioned over sensor
Verify that the position lever is installed at the
top of the shaft and is seated all the way
down onto the shaft indexing surface. Also
ensure the position lever is correctly
positioned over the sensors on the
electronics module.
LED damaged or malfunctioning
Replace electronics module (refer to manual
26842 for hardware replacement procedure)
Trip LED indicator is not
on
Power supply is not turned on or
wiring is not connected
Check power source and connections
(Chapter 2: Electrical Specifications).
Valve is in a run state
Ensure all speed sensors and logic solver are
functioning correctly and that all wiring
connections are correct.
Position lever/magnet not correctly
positioned over sensor
Verify that the position lever is installed at the
top of the shaft and is seated all the way
down onto the shaft indexing surface. Also
ensure the position lever is correctly
positioned over the sensors on the
electronics module.
LED damaged or malfunctioning
Replace electronics module (refer to manual
26842 for hardware replacement procedure)
Trip Header Pressure
Fails to Decrease Below
Trip Pressure When
Valves are Open
Trip header orifice size is too large
Check orifice size and replace with a smaller
orifice
Hydraulic ports blocked
Disconnect and check hydraulic ports for
obstructions
Trip Header Pressure is
Too Low When Valves
are Closed
Trip header orifice size is too small
Check orifice size and replace with a larger
orifice
Released