Motor Controller 1253-4804

Description

Technical Specifications

• Model: 1253-4804
• Nominal Battery Voltage (Volts): 48V
• Current Limit (amps): 600
• Programmable Under-voltage Cutback (Volts): 32-42
• Overvoltage Cutoff (Volts): 60
• 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 over-temperature cutback: linear cutback starts at 176° F; complete cutoff at 248° F
• Heatsink under-temperature cutback: 50% current below -13° F
• Operating ambient temperature range: -40° F to 122° F
• Storage ambient temperature range: -40° F to 185° F
• Package environmental rating: IP54
• Throttle Type: 0-5KΩ (default setting), 5K-0Ω, 0-5V or single-ended 3-wire potentiometer (1kΩ to 10kΩ range)
• Dimensions: 7.71 (L) x 7.74 (W) x 3.03 (H) in.
• Net Weight: 5.73 lb

It is necessary that the Curtis Controller is programmed before applying to a specific application. For a customer without Motor Controller Programming knowledge or experience, please consult your motor dealer and carefully read the Curtis 1253 Motor Controller Data-sheet before making your purchase.

By default, we will deliver the controller with default setting of 48V / 600A / 0-5kΩ (Throttle Type=”0″). For better applying the controller to your system, confirm the required throttle type (0-5kΩ, 5k-0Ω or 0 – 5V).

Product Overview

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, aerial lift platforms (scissor and vertical lifts) 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.

Key Features

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.

This is a replacement controller with the same function, structure and dimensions as the original part from the OEM.

Please contact us for compatibility. Our forklift technicians can help you find the right part for your needs.

Package Contents: (1) replacement controller. Based on order quantity and specifications.