Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Category | Description |
|---|---|
| Model | Woodward 9907-252 |
| Power Supply | 24 VDC, range 18–32 VDC, approximately 5 W power consumption |
| Output Type | +0.5 to +4.5 VDC analog signal |
| 3-Phase PT Inputs | 95–130 or 190–260 VAC, 50–400 Hz; 1.6 W/phase at 240 VAC |
| 3-Phase CT Inputs | 3–7 Arms, burden 0.1 VA/phase |
| Load Sharing Input | 0–3 VDC into 25 kΩ impedance (isochronous mode); open circuit for droop |
| Sync Input | Compatible with optional Woodward SPM-A synchronizer |
| Speed Trim | Manual adjustment via 10 kΩ external potentiometer |
| Load Signal Output | DC signal proportional to real current, used for load gain adjustment |
| Load Sharing Modes | Isochronous and droop |
| Operating Temp | –40 to +70 °C |
| Salt Fog Test | 5% NaCl, 35 °C, 47 hrs wet / 47 hrs dry |
| Humidity Test | 95% RH, 65 °C, 5 cycles of 24 hrs each |
| Vibration Test | 4 G, 5 mm, 5–2000 Hz, 3 hrs/axis |
| Shock Test | 40 G, 11 ms sawtooth pulse |
| Installation Category | Category III; Pollution Degree 2 |
| Protection Requirement | Must be housed in IP43 enclosure for EU LVD compliance |
| Mounting | Any orientation, not on engine |
| Dimensions (L×W×H) | 273.6 × 214.1 × 59.2 mm |
| Weight | 1.488 kg (DC model) |
| Standards Compliance | EMC 89/336/EEC, EN 50081-2, EN 50082-2; UL508 Industrial Control Equipment |
FAQ
Frequently Asked Questions (FAQ)
Q1: What type of engine control systems is the 9907-252 designed for?
A1: It is designed for systems accepting +0.5 to +4.5 VDC speed setting input.
Q2: Can the module share load with non-Woodward controllers?
A2: Yes, it allows load sharing with both Woodward and non-Woodward engine controls.
Q3: What load sharing modes are supported?
A3: The module supports both isochronous and droop load sharing.
Q4: How is droop mode activated?
A4: Droop mode is activated when either the external droop switch or auxiliary breaker is open.
Q5: Is manual speed adjustment available?
A5: Yes, using an external 10 kΩ potentiometer to trim output signal.
Q6: Are there environmental requirements for installation?
A6: Yes, the unit must be housed in an IP43-rated enclosure and not mounted on the engine.
Q7: Does the unit comply with EMC and industrial safety standards?
A7: Yes, it complies with EN and UL standards, including EN 50178 and UL508.
Q8: Is the module suitable for humid or corrosive environments?
A8: Yes, it passed humidity and salt fog testing for harsh industrial conditions.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
