Product Specification  82686 (Rev. D)  Load Sharing Module    Applications  Woodward makes models of its Load Sharing Module for use with engines equipped with speed controls that accept a ±3 Vdc speed setting input, a 0.5 to 4.5 Vdc input, or a PWM (pulse-width-modulated) input. The Load Sharing Module allows use of Woodward power generation accessories and allows load sharing between engines equipped with speed controls that are not manufactured by Woodward and engines controlled with Woodward electronic controls, or controls using other Woodward load sharing modules. Description   Allows load sharing with The Load Sharing Module provides isochronous Woodward and and droop load-sharing capability for engines in generator set applications. Additional equipment non-Woodward in the control system can include the Woodward equipped engines SPM-A Synchronizer, SPM-D Synchronizer, Automatic Generator Loading Control (AGLC),  Isochronous and and Automatic Power Transfer and Loading droop load sharing Control (APTL).  EC Compliant  UL/cUL Listed Output Type Supply Voltage Part Number Manual Number ±3 Vdc analog 115/230 Vac 9907-173 26011 +0.5 to +4.5 Vdc analog 24 Vdc 9907-252 02035 PWM/Caterpillar 24 Vdc 9907-838, 9907-175 02036 PWM/GenDec™ 115/230 Vac 9907-174 26012 Typical System Using a Load Sharing Module Woodward 82686 p.2 Specifications  Power Supply DC Models 18–32 Vdc, approximately 5 W. AC Models Jumper selectable for 95–130 or 190–260 Vac line-to-line, 50–400 Hz, approximately 10 W. Inputs 3-phase PT Inputs 95–130 or 190–260 Vac line-to-line, 50–400 Hz. PT input burden is 1.6 W per phase at 240 Vac, 0.4 W per phase at 120 Vac. 3-phase CT Inputs 3–7 Arms at full load, CT input burden at full load is 0.1 VA per phase. Load Sharing Input 0–3 Vdc into 25 k impedance in isochronous mode, open circuit in droop mode. Sync Input Compatible with optional Woodward SPM-A synchronizer. Speed Trim Allows manual adjustment of output level with an external 10 k potentiometer (not available on part number 9907-173). Droop Switch The external droop switch is to be wired in series with the auxiliary circuit breaker contact. Droop mode is selected when either the droop switch or the auxiliary circuit breaker is open. Outputs Load Signal DC signal proportional to total real current sensed by the Load Sharing Module. Used to adjust load gain. Output to Speed Control +0.5 to +4.5 Vdc analog, ±3 Vdc analog, or PWM, depending on model. Adjustments Droop Provides for output reduction between no-load and full-load conditions. Load Gain Provides adjustment of the load on an individual generator when two or more generators are paralleled. Adjusts specified full load condition from 3 to 7 Arms. Environmental Operating Temperature –40 to +70 °C (–40 to +158 °F). Salt Fog Tested at 5% NaCl, 35 °C, 47 hrs wet, 47 hrs dry. Humidity Tested at 95% RH, 65 °C, non-condensing, 5 cycles at 24 hrs/cycle. Vibration Swept sine: Tested at 4 G, 5 mm, 5–2000 Hz, 3 hr min/axis, including 4 30-minute dwells at resonant frequencies. Shock 40 G, 11 ms sawtooth pulse. Installation Overvoltage Category Category III. Air Quality Pollution Degree 2. Mounting Any orientation, any convenient location, but not on engine. IP43 protective enclosure required for compliance with EU Low Voltage Directive. Physical Characteristics Dimensions Length: 273.6 mm (10.77 in.) Width: 214.1 mm (8.43 in.) Height: 59.2 mm (2.33 in.) Weight/Mass 1398 g (49.3 oz.) approximate, dc models 1488 g (52.5 oz.) approximate, dc models Safety and EMC Standards Compliance Conforms to EMC Directive 89/336/EEC. Conformity established by testing to EN 50081-2, EN 50082-2. Conforms to Low Voltage Directive 73/23/EEC when used in accordance with instructions. Conformity established by testing to EN 50178, 1997, and EN 61010-1, 1993, +A1. Listed to UL and cUL Industrial Control Equipment (UL508). For more information contact: PO Box 1519, Fort Collins CO, USA 80522-1519 1000 East Drake Road, Fort Collins CO 80525 Tel.: +1 (970) 482-5811  Fax: +1 (970) 498-3058 www.woodward.com Distributors & Service Woodward has an international network of distributors and service facilities. For your nearest representative, call the Fort Collins plant or see the Worldwide Directory on our website. This document is distributed for informational purposes only. It is not to be construed as creating or becoming part of any Woodward contractual or warranty obligation unless expressly stated in a written sales contract. © Woodward 1999, All Rights Reserved 2011/4/Colorado