2
Curtis 1212S Manual,
Rev. B
1 — OVERVIEW
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Anti-Rollback/Roll-forward function provides smooth and safe vehicle
control on hills and ramps
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Internal main relay provides secure power-off
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Boost current gives a brief boost of current greatly improving
transient loads such as starting on a hill, crossing thresholds, etc.
Easy Installation and Setup
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Industry standard footprint, mounting centers, and wiring allows
drop-in replacement of other controllers
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1212S controller is easily programmed with a Curtis
programming device, or can be supplied pre-programmed
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Accepts standard single-ended voltage/resistance throttles
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Throttle sense can be inverted for all throttle types
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Simplified troubleshooting and diagnostics
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Standard Molex Mini-Fit-Jr. terminals provide proven connections
for the control wiring
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Bolt-on terminals provide robust connections for the high current
wiring
Valuable Additional Features
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Automatic compensation for changes in motor condition to ensure
optimum drive performance at all times
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Multi-mode provides for two distinct and programmable control
modes (indoor/outdoor)
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Emergency reverse with belly button switch input
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Emergency stop provides immediate EM braking when throttle
transitioned through neutral to >80% reverse request
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Lift Lockout input from Curtis 906 battery discharge indicator meter
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Output Lift Lockout signal, which can drive a pump contactor
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Pump SRO can be enabled to prevent pump startup when KSI
first turned on
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Sleep function prevents the controller draining the battery
when the vehicle is inactive
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Battery Discharge Indicator output
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Adjustable brake hold voltage reduces heating of the brake coil
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Reverse polarity protection
