CURTIS Permanent Magnet Motor Speed Controller

 24V / 110A

Solid Metal Case

New in Stock

Model: 1228-2901
Nominal Voltage: 24V
15 Second Current Rating: 110A
1 Minute Current Rating: 110A
1 Hour Current Rating: 40A
Voltage Drop at 20A: 0.15V

Description:

The Curtis 1228 MultiMode™ controller is a permanent magnet motor speed controller designed for use in mobility aid scooters and other small electric vehicles, such as sweeper/scrubbers. It offers smooth, silent, cost effective control of motor speed and torque. A four quadrant, full bridge power output stage provides for solid state motor reversing and full braking power without additional relays or contactors.

The 1228 controller is fully programmable by means of the Curtis 1313 handheld programmer. Use of the programmer offers diagnostic and test capability as well as configuration flexibility.

Features:

• Full bridge power MOSFET design, providing
  • infinitely variable forward, reverse, drive, and brake control
  • silent high frequency operation
  • high efficiency
• Programmability through the Curtis programming device
• Complete diagnostics through the Curtis programmer and a status LED
• Full compliance with all applicable international standards
• Available for single-ended or wigwag 5kΩ potentiometer throttles and 5V throttles (both standard full stroke and restricted range)
• MultiMode™ input selects between two different operating modes, thus allowing optimization of vehicle characteristics for different driving conditions (for example, indoor/outdoor)
• Speed limit input provides linear variable speed limiting when an external speed limit pot is used
• Current limiting in both driving and regenerative braking modes
• Load compensation stabilizes speed on ramps and over obstacles
• Speed scaler eliminates variations in maximum speed that would otherwise result from variations in battery charge levels
• High pedal disable (HPD) function with lockout monitors status of the throttle during turn-on and prevents operation until the throttle has been returned to neutral
• Key-off deceleration function provides a controlled deceleration if the keyswitch is turned off while driving
• "E Stop" provides a faster deceleration for emergency stops
• Seat lift function simplifies the wiring required to implement seat lift in DME scooter applications
• Comprehensive fault detection monitors main contactor, output stage, throttle demand vs. output, etc., and disables the drive functions if any conditions are outside specified limits
• ISO 7176 compliant throttle fault detection circuitry inhibits driving if throttle pot signal goes out of range for any reason
• Missing/shorted brake detection forces neutral in the event of an open or shorted brake circuit
• Anti-rollback/anti-roll-forward function sets brake delay according to speed and direction for improved braking response and minimized rollback on hills, etc.
• Reverse beeper option can be used to drive a low current dc horn when vehicle is in reverse
• "Push" input electrically releases brake for key-on pushing (requires that the vehicle be stopped first)
• "Push-Too-Fast" feature guards against unpowered vehicle runaway by powering up and regulating motor voltage to limit vehicle speed
• Inhibit input disables the controller and puts the vehicle in a safe state during charging, etc.
• Power saver deactivates the main relay after 25 seconds of nonoperation and deactivates the entire controller after the programmed sleep delay has elapsed
• BDI output can be used to provide data to a voltmeter; the BDI output can be “stuffed” (optional) in order to display the battery state of charge during battery charging even while the keyswitch is turned off
• Undervoltage cutback function protects against operation at low battery voltage
• Overvoltage protection shorts the motor and disables driving in the event of excessive battery voltage
• Thermally protected
• Reverse polarity protected (battery input)

Throttle Type:

• Type 0: wigwag (5kΩ pots or 5V throttles)
• Type 1: inverted wigwag (5kΩ pots or 5V throttles)
• Type 2: single-ended pots (0–5kΩ)
• Type 3: inverted single-ended pots (5kΩ–0)
• Type 4: single-ended voltage throttles (0–5V)
• Type 5: inverted single-ended voltage throttles (5V–0).

Specifications:

Nominal input voltage: 24 V
PWM operating frequency: 15 kHz
Dielectric resistance: >1 MΩ (DC test)
Electrical isolation to heatsink (min.): 500 V
Minimum motor resistance: 130 mΩ (110 amp models)

B+, B- logic pin current (max.): 9 A (pins 1, 2 and 10, 11 on 18-pin connector)
KSI input current (typical): 50 mA without programmer; 150 mA with programmer
KSI input current (peak): 1.5 A
Logic input current (typical): 1 mA at 24 V

Horn output current (max.): 15 mA
BDI output voltage and current (max.): 0–5 V, 2 mA
LED output current (max.): 15 mA

Electromagnetic brake coil resistance: 32–200 Ω
Electromagnetic brake current (max.): 1 A

Control input switch type: on/off
Speed control signal: 3-wire, 5kΩ; or 0–5V
Speed control type: single-ended, inverted single-ended, wigwag, or inverted wigwag

Operating ambient temperature range: -25°C to 45°C (-13°F to 113°F)
Storage ambient temperature range: -40°C to 75°C (-40°F to 167°F)

Heatsink overtemperature cutback: linear cutback starts at 92°C (198°F); complete cutoff at 134°C (273°F)
Heatsink undertemperature cutback: 50% armature current at -25°C (-13°F)

Package environmental rating: IP40
Weight: 0.6 kg (1.3 lb)
Dimensions (L ×W×H): 156 × 91 × 43 mm (6.13" × 3.60" × 1.71")

Regulatory compliance: Designed to ANSI RESNA WC 14/21, ISO 7176-14, ISO 7176-21, and EN 12184. Documentation available to support 510K FDA filings.