9906-619 Woodward

9906-619 Woodward Digital Controller

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Product Details

The speed and load sharing section of these 2301A models monitors and 
controls two functions.
 Speed—The speed control section keeps the prime mover at the correct 
speed.
 Load Sharing—During parallel operation of two or more generators, the 
load sharing section senses the load carried by its generator and causes the 
loads of all generators in the system to be shared proportionally.

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).

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