Curtis 1253 - Programmable Flexibility; Robust Safety and Reliability

2
Curtis 1253 Manual, Rev. F
1 — OVERVIEW
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-o delay allows SS4 to be used for power steering
✓ Adjustable minimum speed setting to ensure pump lubrication
and to maintain steering system pressure
✓
SS High Speed On mode enhances speed stability (1253-4804 only).
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
✓ ermal cutback provides protection to the controller
✓ Rugged housing meets IP54 environmental ratings
✓ Full-power operation over the -40°C – 80°C heatsink temperature
range.
Familiarity with your Curtis controller will help you install and operate it prop-
erly. We encourage you to read this manual carefully. If you have questions,
please contact the Curtis office nearest you.