Specifications

20
Curtis 1204M/1205M/1209M/1221M Manual
3 — PROGRAMMABLE PARAMETERS: Speed Parameters
SPEED MENU
ALLOWABLE
PARAMETER RANGE DESCRIPTION
Accel Rate 0.2 – 3.0 s The Accel Rate defines the time it takes the controller to accelerate from 0%
output to 100% output when full throttle is applied.
Larger values represent a longer acceleration time and therefore a gentler
start. For faster starts, adjust the Accel Rate to a smaller value.
Quick Start 0.2 – 3.0 s When the throttle is moved from zero rapidly, the quick start feature is activated.
The Quick Start acceleration rate then replaces the normal acceleration rate (as
set by the Accel Rate parameter).
The Quick Start parameter can only be set to values smaller (faster) than
the programmed Accel Rate.
Max Speed 20 – 100 % Defines the maximum requested motor speed at full forward throttle, as %
PWM. Partially-applied throttle is scaled proportionately; e.g., 40% applied
throttle corresponds to a request for 40% of the programmed Max Speed value.
Example: if Max Speed is set to 80%, a 40% applied forward throttle corresponds
to a 32% request (0.80 * 0.40 = 0.32).
Rev Speed 40 – 100 % Defines the maximum requested motor speed at full reverse throttle, as %
PWM. Partially-applied throttle is scaled proportionately; e.g., 40% applied
throttle corresponds to a request for 40% of the programmed Max Speed value.
Example: if Max Speed is set to 80%, a 40% applied reverse throttle corresponds
to a 32% request (0.80 * 0.40 = 0.32).
The Rev Speed parameter is in effect only with the “reverse input active”
wiring configuration or with a speed reduction resistor added to the circuit.