Description Key Technical Specifications Parameter Specification Part Number 9907-164 Product Type Generator Set Controller Series EasyGen 3500 Display Backlit LCD (graphical) Input Voltage 24V DC nominal (18-32V DC range) AC Measurement 3-phase voltage and current Protection Functions Over/under voltage, over/under frequency, reverse power, overcurrent, short circuit Communication RS-232, RS-485, USB, Modbus RTU Digital Inputs 6 configurable inputs Digital Outputs 4 relay outputs (Form C) Analog Inputs 2 configurable (4-20 mA or resistive) Mounting Panel mount (72×144 mm cutout) Operating Temp -20°C to 70°C Certifications CE, UL/cUL pending Condition New Surplus (Original Packaging) Product Introduction The WOODWARD 9907-164 is the EasyGen 3500 generator set controller designed for stand-by and prime power applications. It provides automatic start/stop control, three-phase power monitoring, and comprehensive generator protection in a single compact package. The graphical LCD displays all critical parameters at a glance, and the front panel interface allows local control without opening the cabinet. The 9907-164 includes integrated PLC functionality for custom logic without external hardware. Communication options include USB for local configuration and Modbus RTU for SCADA integration. This unit is new surplus, factory-sealed in original Woodward packaging. Pricing is market-sensitive; contact us for current stock and firm quote. Frequently Asked Questions (FAQ) Q: What’s the difference between 9907-164 and 9907-167? A: The WOODWARD 9907-164 is the base EasyGen 3500 model with standard protection and control features. The 9907-167 typically includes additional I/O or enhanced features like load sharing or import/export control. Check your existing controller’s exact model number—swapping a -164 for a -167 may require rewiring for extra I/O, or you’ll lose functionality if you go the other way. Always match the exact suffix unless you’re prepared to reconfigure the entire system. Q: Can the 9907-164 synchronize multiple generators for parallel operation? A: No, this is a common point of confusion. The WOODWARD 9907-164 is designed for single-unit applications only. It will not synchronize multiple gensets. If you need paralleling capability, you need the EasyGen 3500P model (different part number) with built-in synchronizer and load sharing features. The -164 can monitor a single generator and control its breaker, but it won’t match phase angles with another unit. I’ve seen consultants spec this for parallel plants—wrong choice every time. Q: Does this controller support remote start via dry contact? A: Yes, absolutely. That’s one of the six configurable digital inputs on the 9907-164. You wire your remote start signal (typically from a building ATS or manual switch) to one of the inputs and configure it in the software as “Remote Start” or “Start/Stop.” The input accepts dry contacts—just provide 24V DC from the controller’s internal supply or an external source. Most installations use the controller’s own 24V DC for simplicity. Q: What software do I need to configure the 9907-164? A: You need Woodward’s ToolKit configuration software. The WOODWARD 9907-164 connects via USB (the mini-B port on the front) or RS-232. ToolKit allows you to set all parameters: pickup/dropout delays, protection thresholds, I/O assignments, and custom logic. Without ToolKit, you’re stuck with the factory defaults—which rarely match site requirements. Always verify you have access to the configuration file or are prepared to build one from scratch. Field programming without the file is tedious but doable. Q: Can I view historical event logs on the controller display? A: Yes, the 9907-164 maintains an event log of alarms, trips, and operational changes. You can scroll through them on the LCD display via the menu. However, the log is limited in size—typically 50-100 events depending on firmware. For long-term trending or regulatory compliance, you need to poll the controller via Modbus and log data externally. The display is great for immediate troubleshooting after a trip; it’s not a long-term historian. Q: What happens to the outputs if the 24V DC power fails? A: The WOODWARD 9907-164 has a predictable power-up/power-down behavior. When 24V DC drops out, all relay outputs de-energize immediately. That means your fuel solenoid closes, your starter disengages, and your alarm contacts change state. When power returns, the controller boots and resumes operation based on the configured auto-start conditions. Critical safety note: if you need fail-safe behavior (valves to close on power loss), wire your field devices accordingly—don’t rely on the controller to hold state without power. Q: Is the 9907-164 suitable for marine generator applications? A: The base 9907-164 is built for industrial environments, but marine applications have specific certification requirements (DNV, ABS, Lloyd’s). Standard units lack those certifications. If you need marine class-approved controllers, you must order Woodward parts with specific marine suffixes or certifications. The standard 9907-164 will technically work on a boat, but surveyors will flag it during inspection. Don’t take the risk—spec the marine-certified version. Q: What’s the typical failure mode for these controllers in the field? A: Honestly, power supply failures and display backlight degradation top the list. The 9907-164 runs 24/7 in hot switchgear rooms. After 5-7 years, the internal power supply capacitors drift, causing random resets or failure to boot. The LCD backlight also dims over time—you’ll struggle to read it in daylight. Neither is catastrophic, but both signal end-of-life. Keep a spare on hand if this unit runs critical infrastructure. The control logic itself rarely fails; it’s the support components that go first. BAUMULLER DS56M25 Nr. 21801857 plc R4348B1057 PLC HE693THM809C CPU CACR-F2TBI-EREV.F04 plc FWA-ECODRV-ASE-04V16-MS DKC-11.1-040-7-FW Email: [email protected] Phone: 86 15340683922 Sales:Wu Jiedong Our products are guaranteed for 1 year, with new and original production stopped and imported spare parts. All prices listed on the official website are subject to confirmation by contact: Wu Jiedong (manager). Our product: brand new original packaging Our warranty: All new or repaired parts have a 12 month warranty period beginning Our payment: 100% telegraphic transfer of inventory items before shipment, conditions can be proposed! If you have any downtime spare parts that you cannot find, please feel free to call or use email to contact me. If there are issues that the product cannot solve, please contact me. Product prices can be negotiated. Please do not consider contacting me!