CURTIS Programmable DC Series Motor Controller Model: 1253-8001 (Hydraulic Pump Motor) 80V – 600A

As a professional supplier, we possess OEM programs (controller settings) of many utility vehicles and forklifts. Buyers may contact us and send us the vehicle (forklift) information (manufacturer, model, year of production, etc.), for knowing if we can provide the controller with its OEM program. This 1253-8001 can be programmed by CURTIS 1313-4331 Handheld Programmer or CURTIS 1314 PC Programming Station. There is no extra cost for reprogramming the controller (Example: Click here to download the pump controller setting of a HELI 3T 80V forklift, PDF format).

The CURTIS 1253 provides a cost-effective solution for control of high power DC series-wound hydraulic pump motors. Its system integration features are designed primarily for Class I and Class II material handling vehicles. Typical applications include the pump systems of material handling trucks (counterbalance trucks, reach trucks), aerial lift platforms (scissor lifts, articulating/telescoping booms), and other industrial vehicles.

The 1253 accepts inputs from up to four Speed Select switches and also from an analog throttle. Its internal microprocessor-based logic controller provides maximum flexibility at minimum cost. Its performance characteristics can be tailored through an array of programmable parameters.

The 1253 controller is fully programmable through a CURTIS 1313-4331 Handheld Programmer or 1314 PC Programming Station. The programming device provides diagnostic and test capability in addition to configuration flexibility.

• CURTIS Model: 1253-8001
• Norminal Battery Voltage (Volts): 80V
• Amature Current Limit (amps): 600
• Programmable Undervoltage Cutback (Volts): 54-70
• Overvoltage Cutoff (Volts): 102
• PWM operating frequency: 15.6 kHz
• Electrical isolation to heatsink (min.): 500 VAC
• KSI input voltage: 28–60V DC
• KSI input current (no contactors engaged):
  • 60 mA without programmer
  • 130 mA with programmer
• Logic input current: < 1 mA
• Status LED output current (max.): < 2 mA
• Heatsink overtemperature cutback: linear cutback starts at 80°C; complete cutoff at 120°C
• Heatsink undertemperature cutback: 50% current below -25°C
• Throttle Type: 0-5K Ω (default setting), 5K-0 Ω, 0-5V or single-ended 3-wire potentiometer (1kΩ to 10kΩ range)
• Dimensions: L196xW146xH77 mm
• Net Weight: 2.6 kg
• Operating ambient temperature range: -40°C to 50°C
• Storage ambient temperature range: -40°C to 85°C
• Package environmental rating: IP54

• Smooth and Quiet Control
  • Programmable acceleration rates provide smooth application of pump motor torque.
  • 15.6 kHz PWM frequency for near-silent operation.
• Programmable Flexibility
  • Easily programmable through a CURTIS programming device.
  • Four Speed Select inputs (SS1.SS4) with individually programmable top speeds.
  • Programmable throttle input for precise speed control with a variety of signal sources.
  • Programmable turn-off delay allows SS4 to be used for power steering.
  • Adjustable minimum speed setting to ensure pump lubrication and to maintain steering system pressure.
• Robust Safety and Reliability
  • Interlock feature disables the controller when operator is not present.
  • Programmable startup lockout prevents inadvertent operation.
  • Seamless integration with CURTIS gauges (models 803, 841, 906, and enGage. IV) for lift lockout function.
  • Lift lockout disables the controller at low battery state of charge.
  • Redundant watchdog timer circuits ensure proper software operation.
  • External Status LED output for easy troubleshooting.
  • Short-circuit protection on main contactor driver.
  • Precharge control prevents pitting of contactor tips at startup.
  • Thermal cutback provides protection to the controller.
  • Rugged housing meets IP54 environmental ratings.
• Easily programmable through the CURTIS Model 1313-4331 Handheld Programmer or 1314 PC Programming Station.