WOODWARD ® ProTech‐SX Safety System with Integrated Overspeed Protection

Real Time Clock—Each ProTech-SX utilizes a real-time clock to ensure accurate time logging. Alternatively, one of the ProTech-SX inputs can be configured to accept a discrete clock synchronization input signal from a plant DCS or other time synch device.

Features

High Resolution Displays—The ProTech-SX includes a highresolution 107 mm (4.2”) color display and keypad to allow users to locally monitor configuration settings, statuses, system inputs and outputs, and alarm, trip, and overspeed logs.

Acceleration/Deceleration Detection—Optionally, this safety system can be configured to protect a turbine from high acceleration/deceleration events. The derivative of the speed signal is used to detect turbine/engine acceleration/ deceleration and issue an associated trip command.

MPU Detection—The ProTech-SX’s speed-sensor input includes a special MPU open-wire detection circuit to validate that an MPU is properly connected before and during turbine operation. Note: Due to the difference in circuitry, this special, open-wire detection circuit is not available for use with active/proximity speed pickups.

Sulfur Contamination Resistant—The ProTech-SX utilizes a special conformal coating material that has demonstrated excellent long-term protection against (H_{2} ~S) and (SO_{2}) gases at levels classified in international standard IEC 721-3-3 1994 - environment Class 3C2.

Configurability

The ProTech-SX is programmed through a software service tool, allowing users to customize the safety device’s inputs, outputs, and operation to a specific application. Designed specifically as a safety PLC, the ProTech-SX includes safetybased logic, testing functions, testing sequences, and logging. Typical programmable logic functions (AND, NAND, OR, NOR, XOR, XNOR, NOT, analog comparators, timers, delays, etc.) are available to create application-specific safety programs. Password protection is used to protect each module from accidental or malicious configuration changes.

This safety system can be programmed to accept simplex or dual-redundant speed signals, and simplex, dual redundant, or TMR discrete or analog signals. When configured to accept redundant inputs, system failures (switches, transducers, modules) are detected, annunciated, and allowed to be repaired or replaced while the monitored system continues to operate on-line.

Installation Information

Approximate dimensions, including faceplate: 267 x 165 x 89 mm (10.5 x 6.5 x 3.5”)

Approximate mounting enclosure opening size: 241 x 140 mm (9.5 x 5.5”)

Designed to be flush-mounted vertically within a panel or cabinet

Rated for IP56 (ingress protection level 5-6) based locations

Operating / storage temperature range: –20 to +60 °C

Inputs Signals

Power Source (2 redundant)

High-Voltage Power Supply (90–264 VAC/47–63 Hz. 100– 150 VDC) @ 30 W

Low-Voltage Power Supply (18–32 VDC) @ 30 W

Speed Signals (2 redundant)

Input #1 can be configured to accept signals from:

MPUs (100–32 000 Hz) @ (1–35 Vrms)

Gear Tooth Range (1–320 teeth)

Input #2 can be configured to accept signals from:

MPUs (100–32 000 Hz) @ (1–35 Vrms), Gear Tooth Range (1–320 teeth)

Analog/Discrete Inputs (10)

Start Command (Discrete Input)

Failed Speed Signal Override Command (Discrete Input)

Analog or Discrete Inputs—Configurable (7)

Output Signals

Shutdown relay outputs (2)—Rated for 1 A @ 24 VDC

Programmable solid-state relay outputs (3)

Rated for 1 A @ 24 VDC

Functions—alarm, trip, speed switch, analog switch, test status, etc

24 VDC, 0.5 A auxiliary power available for interposing relay circuits

4–20 mA Analog Output (1)

Dedicated to function as a speed meter readout

Communication Ports (1)

Serial RS-232, RS-422, RS-485

Modbus protocol

Regulatory Compliance

North American Compliance:

CSA: CSA Certified for Class I, Division 2, Groups A, B, C, and D, T4 at 60 °C ambient for use in Canada and the United States.

European Compliance:

EMC Directive: 2014/30/EU

ATEX Directive: 2014/34/EU, II 3 G, Ex ec nC IIC T4 Gc (-20°C ≤ Tamb ≤ +60°C)

LVD Directive: 2014/35/EU

RoHS: 2011/65/EU

Woodward Turbomachinery Systems products are intended exclusively for sale and use only as a part of Large Scale Fixed

Installations per the meaning of Art.2.4(e) of directive 2011/65/EU. This fulfills the requirements stated in Art.2.4(c) and as such, the product is excluded from the scope of RoHS2.

UKCA Compliance:

Electromagnetic Compatibility Regulations 2016: S.I. 2016 No. 1091

Equipment and Protective Systems Intended for use in Potentially Explosive Atmospheres Regulations 2016 : S.I. 2016 No. 1107 as II 3 G, Ex ec nC IIC T4 Gc (-20°C ≤ Tamb ≤ +60°C)

The Electrical Equipment (Safety) Regulations 2016: S.I. 2016 No. 1101

Other International Compliance:

SIL: TÜV certified for SIL-2 per IEC 61508 Parts 1-7

RCM (Australia & New Zealand): Compliance is limited to application for those units bearing the Regulatory Compliance Mark (RCM). Only EMC is applicable in virtually all Woodward intended applications.

IEC60068-2-60: 1995 Part 2.60 Methods 1 and 4 (conformal coating)

API670 & API612 compliant