Category: Woodward

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.

General

Woodward products covered under Woodward Product and Service Warranty (5-09-0690) are warranted

to be free from defects in materials and workmanship, when installed and used in the manner for which

they are intended, for a period of 18 months from the date of shipment from Woodward, defined in

Woodward’s Terms and Conditions.

Repairs and servicing of the QuickTrip must be performed by Woodward or its authorized service facilities

Use of a cable gland or stopping plug that does not meet the hazardous area certification requirements

or thread form or thread size will invalidate the suitability for hazardous locations.

Never remove or alter the nameplate as it bears important information which may be necessary to service

or repair the unit.

QuickTrip Cover Replacement Kit

Servo cover replacement kit may be ordered from Woodward.

Refer to Figure 5-1a which displays the part number. The location and assembly orientation of each kit

component must be installed as depicted in Figure 5-1b using a spanner wrench or Woodward tool

#1013-6603. For additional information see QuickTrip Field Repair Procedure Manual 26842.

Special Ambient Temperature Considerations

Cold Start Procedure:

If performing a cold-start of QuickTrip in very cold ambient environment conditions 

(temperatures between -40 °C to +15 °C), both the hydraulic oil within the QuickTrip manifold and the

QuickTrip manifold itself

must undergo a warmup procedure prior to starting the turbine to ensure the QuickTrip will operate

within specified performance limits. In particular, slew open times increase at lower hydraulic fluid

temperatures due to the higher viscosity (lower fluidity) of the hydraulic oil.

Before starting the QuickTrip, follow the warm-up procedure below:

1. De-energize all QuickTrip modules (valves should be open).

2. Start flow of warm hydraulic fluid through QuickTrip such that the temperature of the oil flowing from

the drain side of QuickTrip is at or above +15 °C.

3. Allow the warm hydraulic fluid to flow through QuickTrip for at least 30 minutes, while maintaining the

temperature at the drain side of QuickTrip at or above +15 °C.

4. Energize all QuickTrip modules.

5. Use the ProTechTPS to run an auto sequence test on QuickTrip (sequentially de-energizing and re

energizing each channel individually).

6. After the auto sequence test is complete, check the trip time log and verify each QuickTrip module

tripped in less than 50 ms.

7. If QuickTrip is to be operated continuously in very cold ambient environment conditions, the hydraulic

oil temperature flowing from the drain side of QuickTrip must be continuously maintained above +15°C.

8. Alternate methods of heating/insulating the QuickTrip and the hydraulic fluid lines upstream from

QuickTrip in very cold ambient environment conditions are recommended and might include the use

of heat tape, heat blankets and insulation.

Manually Stroking QuickTrip Using ProTechTPS (powered)

Manually stroking valve using ProTechTPS procedure:

1. If QuickTrip is in a run state, as indicated by a green LED as viewed through the sight glass,

QuickTrip may be manually tripped by de-energizing the ProTechTPS interposing relay to initiate a

trip. This may be done by using the Temporary Overspeed Setpoint Test (see ProTechTPS product

manual for more detailed instructions on this function).

2. If QuickTrip is in a trip state, as indicated by a red LED as viewed through the sight glass, QuickTrip

may be energized to close by activating the ProTechTPS interposing relay to initiate a run state. This

may be done by pressing the RESET button on the front panel of the ProTechTPS (see the

ProTechTPS product manual if module does not reset when the RESET button is pressed).

The user is permitted to replace some components of the QuickTrip in turbine shutdown conditions. The

user is also permitted to replace some components of the QuickTrip during normal turbine operation

conditions. The replacement components must be Woodward recommended products. Only this

guarantees full component compatibility and functionality. All safety instructions and detailed procedures

from this manual must be followed.

Hardware Replacement

The user is permitted to replace some components of the QuickTrip in turbine shutdown conditions. The

user is also permitted to replace some components of the QuickTrip during normal turbine operation

conditions. The replacement components must be Woodward recommended products. Only this

guarantees full component compatibility and functionality. All safety instructions and detailed procedures

from this manual must be followed.

Service and Replacement Parts:

• Service Manual (26842) – Consult Woodward distributor for part number

• Solenoid – On-line replaceable. Consult local Woodward distributor or service manual for part number

• Electronics module (PCBA) – On-line replaceable. Consult local Woodward distributor or service manual

for part number

• Return Spring – Consult local Woodward distributor or service manual for part number

• Sight Window – On-line replaceable. Consult local Woodward distributor or service manual for

part number

• Top Cover – On-Line replaceable. Consult local Woodward distributor or service manual for part number

• Bottom Cover – Consult local Woodward distributor or service manual for part number

• Interface Seals Kit(s) – Consult local Woodward distributor or service manual for part number

• Woodward Field Repair Tools Kit – Consult Woodward distributor for part number.

Manually Stroking QuickTrip (powered)

Manually Stroking Valve Procedure:

1. To manually stroke the QuickTrip valve, the actuators must be powered with 24 VDC. Make sure the

power supply is connected and operating while performing this procedure. This can be verified by

viewing the LED status through the sight window on top of the valve. One or two blue LED’s indicate

that the power supply is connected and is turned on.

2. If QuickTrip is in a run state, as indicated by a green LED as viewed through the sight glass,

QuickTrip may be manually tripped either by de-energizing the logic solver interposing relay to initiate

a trip state or by tripping the breaker to the Control In discrete input terminals on the QuickTrip

electronics module (terminals 5 and 6 of TB2).

3. If QuickTrip is in a trip state, as indicated by a red as LED viewed through the sight glass, QuickTrip

may be energized to close either by activating the logic solver interposing relay to initiate a run state

or by supplying a separate 24 VDC input to the Control In terminals on the QuickTrip electronics

module (terminals 5 and 6 of TB2).

WOODWARD | INDUSTRIAL TURBOMACHINERY SYSTEMS

PRODUCT FEATURES

Æ Dirt-tolerant design (25lb rotary chip shear force)

Æ Self-cleaning valve design (rotary solenoids)

Æ Fast trip times (< 50 ms solenoid action)

Æ Increased reliability (2-out-of-3 voting design)

Æ Repairable online

Æ Testable on-line

Æ Safety certified for use in IEC61508 SIL-3 systems

Æ API-670 Compliant

Æ Local & remote position indications

Æ Compact size

Æ Certified for hazardous locations

The QuickTrip trip block assembly is designed for use in steam, gas, and hydro

turbine shutdown systems for quick and reliable dumping of the turbine’s trip oil

header. This integrated trip block assembly is intended for use on mechanical-drive

or generator-drive steam turbines that use low pressure (5–25 bar / 73–363 psi)

hydraulic trip oil headers.

The QuickTrip’s fault tolerant design makes it ideal for critical steam turbine

applications, where turbine up-time and availability are essential. This trip block

assembly’s 2-out-of-3 voting design provides users with a very high level of system

reliability as well as compliance with industry standard API-670.

The QuickTrip is certified for use in IEC61508 based turbine safety systems, and

when paired with the Woodward ProTechTPS, can be applied into systems that

require a “Safety Integrity Level – 3” rating or below.

Specifications

Physical and Performance Specifications

Solenoid Response Time: < 50 ms*

Failsafe Operation: Internal return spring on each solenoid valve

Weight: 110 kg (242 lb)

Mounting: Vertical mounting

* Solenoid response time represents the valve trip time and is defined as the time from when the solenoid

is de-energized to the time when the valves are at the full open position.​

Environmental Specifications

Ambient Temperature: (–40 to +85) °C / (–40 to +185) °F

Ex nA nC Minimum Ambient

Temperature: -20 °C (-4 °F)

Vibration Resistance: MIL-STD 810F, M514.5A, Cat. 4

(0.015 G²/Hz, 1.04 Grms)

Shock Resistance: US MIL-STD-810C method 516.2. procedure 1

(10 G Peak, 11 ms duration, saw tooth)

Corrosion Resistance: Two-part epoxy paint coating. Designed for outdoor conditions.

Ingress Protection

(IEC 60529. IEC 60079-0): IP66

Electrical Specifications

Supply Voltage: 24 VDC nominal ± 10% (use cable at least 0.8mm² / 18 AWG)

Current Consumption: 8 A max (2.6 A per channel max) at steady state @ 24 V

Control Input Voltage: 0-32 VDC, 20 mA max

Feedback Output Signal: Resistive: 2 A @ 28 VDC, max 32 VDC

Inductive: 0.5 A @ 28 VDC (max. 0.2 Henry)

Supply Voltage Connections: Terminal suitable for 0.8 to 3.3 mm² or 18 to 12 AWG stranded wire

Control Input and Discrete

Removable terminal suitable for 0.8 to 3.3 mm² or 18 to 12 AWG

stranded wire

Connections:

Cable Entries: 3 X 0.750”-14 NPT

1 Ground

Rotary Trip Valves

All three of the QuickTrip’s trip valves are spring return, two position rotary valves. When any of the

hydraulic valves is in its closed position, the ports in the valve are blocked preventing hydraulic flow

through the valve. As a valve rotates to the tripped position, the ports open and the trip header pressure

is connected to either the drain, or the inlet ports of another one of the valves. The combined action of

the three valves results in trip header pressure being connected to drain only when 2 or 3 valves are

tripped.

If the unit detects any shutdown condition or loss of power occurs, the trip valve return springs will force

the valves to the fail-safe / tripped position.

Electric Valve Actuators

The QuickTrip uses a set of three unique rotary solenoids called limited angle torquers (LAT). The

permanent magnet rotor is directly coupled to the trip valve.

The position of the valves is sensed by two limit switches present on each of the electrical modules.

These limit switches are located on both the closed and tripped positions of the valves, allowing the user

to easily determine the position of each valve.

Chemically Resistant Versions

For steam turbine applications where lube oil contains harsh chemical contaminants (ammonia, hydrogen

sulfide, etc.), a chemically resistant version of the QuickTrip has been developed. Chemically resistant

versions feature best-in-class seals in all wetted locations within the trip block assembly. Chemically

resistant versions provide an optimal solution for extreme chemical resistance while still maintaining

QuickTrip operating pressure and temperature ranges. Please contact Woodward for available models

and information regarding chemical resistance for specific applications.

Electric Valve Actuators

The QuickTrip uses a set of three unique rotary solenoids called limited angle torquers (LAT). The

permanent magnet rotor is directly coupled to the trip valve.

The position of the valves is sensed by two limit switches present on each of the electrical modules.

These limit switches are located on both the closed and tripped positions of the valves, allowing the user

to easily determine the position of each valve.

Electronic Driver Modules (PCB)

The printed circuit boards (PCB) are mounted on of the top of each valve module. The PCB(s) performs

the following tasks:

• Trip demand input

• Dual redundant power inputs

• Valve position feedback discrete outputs

• Visual valve position indication

Discrete outputs are provided for position feedback indication of each valve module. Within each valve

module, there are also four LEDs that indicate the current condition of the module as well as power

supply health. These LEDs are viewable through the module covers’ transparent sight window.