Curtis PMC 1297 Manual
2
Preliminary on Verso page is set with right edge at 7 and 7/8,
and the top (as on the Recto page) at 1/4.
1 — OVERVIEW
Like all Curtis PMC motor controllers, the 1297 offers superior operator
control of motor speed. Features include:
✓ 150–350 amp separately excited regenerative traction motor controller
✓ Field current standard at 25 amps on 150 and 250 amp controllers,
and at 35 amps on 350 amp controllers
✓ MultiMode™ feature allows two distinct user-selectable operation modes
✓ 200–300 amp series pump motor controller, with choice of variable
PWM or ramped on/off
✓ Proportional lowering valve is controlled by a variable-current driver,
for precise control during lowering
✓ Lift and Lower operations start smoothly, because of hydraulic system
pre-load function
✓ Programmability through the Curtis PMC 13XX programmer
✓ Complete diagnostics through the 13XX programmer and through
the controller’s built-in Status LED
✓ Throttle inputs for single-ended or wigwag 5kΩ pots or 0–5V throttles
(both standard full stroke and restricted range); one throttle for the
traction system and one for the hydraulic system
✓ Active precharge of controller capacitor bank extends life of main
contactor tips
✓ Three hourmeters—total KSI-on hours, drive hours, pump hours—and
their associated maintenance timers are built into the controller, with
EEPROM storage (no battery)
✓ BDI calculations performed within controller
✓ Meets EEC fault detection requirements (standard M- PWM fault check)
✓ Fault detection circuitry on throttle inputs can be used to inhibit
operation if traction or hydraulic throttle signal goes out of range
for any reason
✓ Internal reverse polarity protection (no external diode required)
✓ Continuous diagnostics during operation, with microprocessor
power-on self-test
✓ All output drivers are short-circuit protected and provide built-in
coil spike protection
✓ Positive battery connections for all inputs
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