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Brand: Woodward
Woodward easYgen-3500-5 Genset Controller (5 A CT)
Description
easYgen-3500-5 easYgen-3500 genset controller with 5 A current inputs
The Woodward easYgen-3500-5 is an easYgen-3500, a genset control for complex breaker applications in the easYgen-3000 series. The suffix in the model name states the rated secondary of the current transformer inputs: the easYgen-3500-5 is built for 5 A CTs, while easYgen-3500-1 is the sister version for 1 A CTs. The controller manages generator start and stop, synchronising, load sharing for up to 32 gensets, and breaker control including generator, mains and generator-group breakers, and it can interact with up to 16 Woodward LS-5 circuit breaker controllers. Seven Star LLC supplies easYgen-3500-5 in Oman and the GCC as an independent supplier in Muscat.
Decoding easYgen-3500-5 and the easYgen-3000 naming
| Element | Meaning |
|---|---|
| easYgen-3500 | Genset control for complex paralleling with LS-5 breaker control and multi-grid applications |
| -5 | Current transformer rated secondary 5 A (Irated 5 A) |
| P1 / P2 | Package level; P2 adds extra analog I/O types and relay outputs, so confirm it on the label |
| Display variants | Plastic front-panel housing with display, or sheet-metal housing for cabinet back mounting without display |
The product specification is shared with the easYgen-3400, which has the same hardware family but a simpler breaker set. Where a name appears as easYgen-3500-5 without a package suffix, read the P1 or P2 mark on the nameplate before ordering a spare.
easYgen-3500-5 technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Woodward / easYgen-3500-5, easYgen-3500 genset control |
| Supply | 12/24 V DC (8 to 40 V DC) |
| Intrinsic consumption | 19 W maximum |
| Voltage inputs | 69/120 V AC rated (100 V AC class) or 277/480 V AC rated (400 V AC class); accuracy class 1 |
| Current inputs (isolated) | Rated ../5 A; linear range 3.0 x Irated for generator, 1.5 x Irated for mains or ground |
| Short-time current (1 s) | 10 x Irated (5 A version) |
| Setting range, current | 1 to 32,000 A primary |
| Frequency | 50/60 Hz (40 to 85 Hz) |
| Discrete inputs | Isolated, 12/24 V DC (8 to 40 V DC), about 20 kΩ |
| Relay outputs | Isolated, 2.00 A AC at 250 V AC general purpose |
| Analog outputs | Isolated, ±10 V / ±20 mA / PWM |
| Display | 5.7 in, 320 x 240 colour graphical LCD with soft keys |
| Interfaces | Three FlexCAN interfaces, RS-232/485 Modbus RTU slave |
| Ambient temperature | −20 to +70 °C operating; −30 to +80 °C storage |
| Housing and size | Plastic front panel, 282 x 217 x 99 mm; or metal cabinet housing 250 x 227 x 84 mm |
| Protection | IP66 front with screw fastening, IP54 with clamp; IP20 rear |
| Listings | UL, cUL, CSA; marine approvals LR and ABS (type approval) |
These data are from the Woodward easYgen-3400/3500 product specification (37523).
Why choose the 5 A CT version of easYgen-3500-5
Five-ampere CTs are the usual choice in most generator switchgear, especially where the CT sits close to the controller or the existing plant has standardised on 5 A. The 5 A version of the controller carries a short-time rating of 10 times Irated for one second, against 50 times for the 1 A version, and the burden figure for both is below 0.15 VA. Before ordering a spare, read the CT ratio on the single-line diagram, because a mismatch between the CT secondary and the controller input rating causes a fivefold error in current, power and protection thresholds. When the system has both kinds of CTs across different gensets, label the spare controllers clearly.
How the controller works: functions you get with easYgen-3500-5
The unit combines measuring, protection, synchronising and sequencing. FlexApp lets the integrator choose the breaker set, from none to generator and mains breakers or a generator group breaker. LogicsManager provides programmable logic for relay and control functions, three freely configurable PID controllers can drive heating, level or pressure loops, and an operating mode set of Auto, Stop, Manual and test modes is available. Supported engine controllers include several J1939 and CANopen ECUs, and I/O expansion boards can be added. For multi-unit plants the unit supports run-up synchronisation, import and export control, and load-dependent start and stop.
Selecting and ordering easYgen-3500-5: checklist
- Confirm the CT secondary on the plant drawings: 5 A for easYgen-3500-5.
- Read P1 or P2 on the nameplate.
- Decide on front-panel mounting with display or cabinet mounting without display.
- Check the voltage class: 100 V AC or 400 V AC measuring inputs.
- Check the supply: 12/24 V DC battery.
- List the CAN and Modbus connections to the rest of the system.
- Obtain the parameter file from the installed unit.
Installation, commissioning and maintenance of easYgen-3500-5
Wire the current inputs to 5 A secondary CTs and check polarity and phase sequence before the first synchronisation. Check the voltage measuring ratios, and remember that CT secondary circuits must never be opened under load. Load the parameter file with the service software, check the mapping of every relay and input, and test the protection limits on a dummy load before putting the genset on the bus. Keep a saved copy of the parameter set for the spare.
easYgen-3500-5 applications in Oman and the GCC
Genset controllers of this class are found in power plants with parallel diesel or gas engines, standby power for oil and gas facilities, desalination and utility sites, and industrial microgrids. In Oman and the GCC they must work with battery supplies at remote sites and tolerate heat in switchgear rooms, so the −20 to +70 °C range and the 12/24 V DC supply are practical. Because 5 A CTs are widely used in generator switchgear, this version is often the one needed for like-for-like replacement.
Information to send with a easYgen-3500-5 RFQ
- Full model name with P1 or P2 mark
- CT secondary confirmed as 5 A
- Display or no-display housing
- Quantity and condition required
- Parameter file availability
- Delivery location in Oman or the GCC
Related Woodward products: Woodward easYgen-3500XT Genset and Breaker Controller, Woodward 505 Digital Control for Steam Turbines, Woodward Flex500 Digital Control for Turbines, Engines and Compressors, Woodward MicroNet Plus Control System, Redundant or Simplex, Woodward 505XT Digital Governor Steam Turbine Control System and Woodward SPM-D10 Synchronizing Unit.
Documents and quotation
The Woodward product specification 37523 for the easYgen-3400/3500 is attached on this page.
Send the model name easYgen-3500-5 with the nameplate details and we will confirm availability and lead time.
Datasheets & Documents
- Datasheet Woodward easYgen-3400/3500 Product Specification Download
Reviews (0)
About brand
Woodward is an American designer of control systems for engines, turbines and aircraft, founded in 1870 by Amos Woodward in Rockford, Illinois, to make governors for water wheels. It is now headquartered in Fort Collins, Colorado, and listed on Nasdaq. Its governors, actuators and controllers manage speed and load on gas and steam turbines, reciprocating engines and generator sets.
Seven Star LLC sources and supplies Woodward turbine controls, synchronizers and gas fuel valves for operators in Oman and the GCC, working from the part number on the unit.
Woodward company profile
| Founded | 1870, Rockford, Illinois, USA, by Amos Woodward |
|---|---|
| First products | Water wheel governors |
| Headquarters | Fort Collins, Colorado |
| Listing | Nasdaq (WWD) |
| Product families | 505 and 505XT steam turbine controllers, easYgen genset and paralleling controls, ProAct and L-Series actuators, EGB and UG governors, MicroNet safety and control platforms, ProTech overspeed protection |
Milestones
- 1870: Amos Woodward founds the company in Rockford.
- Today: Woodward serves aerospace and industrial markets from Fort Collins.
Woodward products listed
Three items show the spread of the industrial line. The 505XT is a digital control for industrial steam turbines with a single valve or single extraction/admission. The SPM-D10 is a synchronizing unit that matches a generator to a bus before the breaker closes. The TecJet 50 Plus is a gas fuel control valve with built-in actuator and electronics, used to meter fuel on gas engines.
Woodward products we list
Ordering Woodward parts: what we need
Woodward identifies hardware by a part number in two digit groups, such as 8440-1667 for one SPM-D10 version, printed on the nameplate with a revision letter and serial number. Send all three. For a 505XT, add the supply voltage version and whether the turbine has extraction or admission. For a synchronizer, give the measuring voltage and the exact SPM-D10 variant. For a TecJet, state the fuel gas, flow size and engine control signal.
Facts checked against Woodward's own company history, October 2026.
Browse Woodward products by category: Control Valves, Controllers & Data Acquisition.
FAQ
Questions about the Woodward easYgen-3500-5 Genset Controller (5 A CT)
Answers from our engineering team on installation, compatibility and integration.
01What does the -5 in easYgen-3500-5 mean?
It indicates the rated secondary current of the CT inputs: 5 A for the easYgen-3500-5 version.
02What is the easYgen-3500-5 used for?
It controls and protects generator sets, including synchronising, load sharing for up to 32 units and breaker control, in complex paralleling applications.
03What supply does the easYgen-3500-5 need?
12/24 V DC (8 to 40 V DC) with an intrinsic consumption of 19 W maximum.
04How does easYgen-3500-5 differ from easYgen-3500-1?
The -5 version has current inputs rated for 5 A CT secondaries and the -1 version for 1 A. Other functions are common to the family.
05What short-time current rating applies to the -5 version?
The specification gives 10 times Irated for one second for the 5 A version.
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