Woodward QuickTrip Electro-Hydraulic Trip Block Assembly Wiring Requirements

Wiring Requirements:

• Keep this and all other low level signal cables separated from input power cables to avoid

unnecessary coupling (noise) between them.

• Wire gauge range: (0.8 to 1.3) mm² / (16 to 18) AWG

• Shielding: These outputs are unshielded, however the wires should be kept in a twisted configuration

for noise immunity.

Wiring

The QuickTrip has three, 3/4 inch (19 mm) NPT wiring entries.

When using cable and cable glands, the gland fitting must meet the same hazardous locations criteria as

the QuickTrip. Follow all installation recommendations and special conditions for safe use that are

supplied with the cable gland. The cable insulation must have a temperature rating of at least

85 °C and 10 °C above the maximum ambient and fluid temperature.

Strip the cable insulation (not the wire insulation) to expose 12 mm (1/2 inch) of the conductors. Strip the

wire insulation 5 mm from each conductor. Mark wires according to their designation and install

connectors, if required.

Remove the top access cover(s). Pass the wires through the cable gland (not provided) or conduit fitting

and attach wires to the printed circuit board terminal blocks in accordance with the wiring diagram.

Secure each wire into connector terminal using a 2.5 mm flat screwdriver blade, applying a torque of

0.2-0.25 Nm (1.75-2.25 in-lbf). Snap the terminal blocks into the header terminal blocks on the PCB.

Tighten the terminal block flange screws to 0.5 Nm (4.4 in-lbf). Replace the top access cover and torque

it using a 1 meter bar or wrench; tightening until the O-ring seal is compressed and the cover is fully

seated against the housing.

Tighten the cable gland fitting per manufacturer’s instructions or pour the conduit seal to provide strain

relief for the cable and to seal the interface between the wiring cable and the QuickTrip modules.

In order to preserve the QuickTrip’s online reparability, each of the three electrical actuator cavities must

be kept isolated from each other. This allows any individual actuator requiring repair to be electrically de

energized, repaired and placed back online while maintaining safe operation of QuickTrip in potentially

explosive environments.