Curtis Instruments

 Preco Safety

 Printed Motor Works

Speed Controller - Permanent Magnet Motor - Programmable 24v 125A w/-MM 1225-2702

$ 764.50 each

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Models 1225/1235 are advanced, programmable, microprocessor based motor speed controllers housed in a rugged, sealed, aluminium enclosure. Four quadrant, full bridge power output stages provide solid state motor reversing and full regenerative braking power. Model 1225 provides extensive standard features. Model 1235 provides additional features for special industrial applications. Models 1225/1235 advanced motor speed controllers are designed for permanent magnet motors, such as those used by mobility aids, scrubbers, personnel carriers, small walkies, etc. They offer smooth, silent, cost-effective control of motor speed and torque.

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Features

  • Full bridge power MOSFET design provides infinitely variable forward, reverse, drive and brake control; silent high frequency and high efficiency operation.
  • Programmable through the Curtis PMC 1311 or 1314 handheld programmer, an optional universal unit used for programming, testing and diagnostics.
  • Complete diagnostics also available through the PowerOn LED.
  • Fully compliant with all applicable international standards and TÜV requirements.
  • Available for wig-wag (center off) and single ended (speed pot and direction switch) throttles for both standard full stroke and restricted range 5k½ potentiometers. Also accepts 0-5v throttle signals.
  • Throttle calibration mode aids the mechanical centering of the throttle using the 1311 programmer to enter the mode. The horn will sound and the status LED will be off whenever the throttle is outside the neutral band.
  • MultiMode™ input selects between two different operating modes. MultiMode™ allows changes in speed, accel, decel, current limit, and IR compensation. This allows optimization of vehicle characteristics in each mode, for example indoor/outdoor.
  • Speed limit input provides additional variable speed limiting, in both mode ranges, with an external pot.
  • Linear acceleration and deceleration with softened response for smooth operation.
  • Current limited in both driving and regenerative braking.
  • Load compensation stabilizes speed on ramps and over obstacles. Compensates for battery voltage, voltage drops, and motor resistance.
  • High pedal disable (HPD) function monitors status of the throttle during turn on and prevents operation until the throttle has been returned to neutral.
  • Power off decel provides a controlled deceleration if the key switch is turned off while driving.
  • Comprehensive fault detect function monitors main contactor, output stage, throttle demand vs. output, etc.
  • Throttle fault circuitry shuts off controller if throttle signal goes out of range for any reason.
  • Missing brake detector forces neutral in the event of an open brake circuit (programmable).
  • Anti rollback/roll forward circuitry sets brake delay according to speed and direction for improved braking response and minimized rollback on hills, etc.
  • Over-current protected brake driver protects the controller from shorts in the brake or its wiring. This low side output driver may also be programmed for side broom or brush contactor, hourmeter, BDI enable, etc.
  • Brake PWM allows the brake driver to be programmed to a reduced holding voltage.
  • Reverse output drives a piezo beeper (customer supplied) in reverse.
  • "Push Too Fast" feature allows motor to coast with controller off and brake released. Pushing too fast automatically and safely shorts the motor to limit maximum coasting speed.
  • Push input electrically releases brake for key-on pushing (requires that the vehicle be stopped first).
  • 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 and entire controller after 25 minutes of non-operation.
  • Under voltage cutback function protects against low battery voltage.
  • Thermally protected and compensated for stable output and overtemperature protection.
  • Reverse polarity protected (battery input).

Model 1235 Only

  • SRO input sequencing options.
  • Emergency reverse (belly button) input causes immediate reversal.
  • Programmable high side driver output for brake light, belly button check, BDI enable, hourmeter, side broom contactor, etc.

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S P E C I F I C A T I O N S

Curtis PMC Models

Nominal Battery Voltage(V)

1 Minute Current Rating(Amps)

1 Hour Current Rating(Amps)

Typ. Voltage Drop @ 20A(V)

Under Voltage Cutback(V)

Over Voltage Limit (V)

1225-21XX

24

65

50

0.45

16

36

1225-24XX

24

100

60

0.30

16

36

1225-27XX

24

125

70

0.25

16

36

1225-31XX

36

90

50

0.25

21

48

1235-21XX

24

65

50

0.45

16

36

1235-24XX

24

100

60

0.30

16

36

1235-27XX

24

125

70

0.25

16

36

1235-31XX

36

90

50

0.25

21

48

T Ü V  C o m p l i a n c e:

This Curtis product complies with the regulations of TÜV, the German service company which tests products and sets standards for product safety and quality. EMC compliance depends upon the installation and is the responsibility of the equipment manufacturer. Shielding may or may not be needed. When installed with the recommended shielding, the controller itself will meet TÜV EMC requirements. The deceleration adjustment must be set to meet all applicable TÜV braking distance requirements.

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DIMENSIONS:

Curtis Instruments - Speed Controller 1227

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