Simga2N Traction Advanced Manual– V1.3 Page 17 (166) ©2021 DMC GmbH Herten Germany
Pin A9 Analogue AD1 i/p Accelerator -- Potentiometer
This is an analogue input that will accept a 3-wire 1-10kΩ potentiometer or a 0V to 5V voltage signal (electronic
accelerator).
The active range of the accelerator input is defined by the programmable parameters, “M1.6-4 Accelerator pot
minimum voltage level “AccMin”” and “M1.6-5 Accelerator pot maximum voltage level “AccMax””.
Two kinds of accelerator can be selected by means of parameter “M1.6-2 Accelerator type ”AccelTyp””.
• If set to Normal (0), the first parameter (“AccMin”) sets the voltage that relates to zero drive demand,
the second (“AccMax”) sets the voltage that corresponds to 100% drive demand.
• If set to WigWag (1), “AccMin” sets 100% reverse drive demand from the throttle, “AccMax” sets 100%
forward drive demand from the throttle.
If the operation of the wig-wag pot is reversed, swap the two supply leads of the potentiometer.
Transposing the parameter values will result in a fault. The voltage admissible range is from 0.2V to
4.5V. Outside this range, a failure is signaled (F28 S004).
Pin A10 Analogue supply 0V
This pin is the analogue input ground for potentiometers.
Pin A11 Analogue AD2 -- Footbrake pot
This pin is used only in traction application.
This is an analogue input that will accept a 3-wire 5kΩ potentiometer or a 0V to 5V voltage signal.
The active range of the footbrake input is defined by the programmable parameters “M1.7-1 Brake pot
minimum voltage level “BrkMin”” (0%) and “M1.7-2 Brake pot maximum voltage level “BrkMax”” (100%).
If a Footbrake switch is used on the brake pedal instead of an analogue device, the switch should connect this
input to the voltage corresponding to the value of parameter, “M1.7-2 Brake pot maximum voltage level
“BrkMax”“ (100%) in order to effect full braking.
The brake pedal input overrides the accelerator pedal input.
This analog input is deactivated if “M2-3 Digital input 5 and 6 configuration ”Sp/In/Ad”” is
selected to 3 (Speed Limit and Footbrake Switch). To activate a footbrake operation a foot
brake switch must be connected to the “Pin A6 Speed Limit 2 / Inch Reverse / Adv mode 2 /
Foot Brake Switch”.
If vehicle is rolling downhill (forward or backward), or in general motor spinning, controller
not giving power to the motor and footbrake demanded, controller will start giving power to
the motor and braking according to control Mode selection (see ”M2-1 Control Mode
“Spd/Torq””). Controller keeps braking the motor until footbrake pressed and speed different
from zero. The end of braking type and possible hill holding depends on setting (see ”M2-1
Control Mode “Spd/Torq”” and “M1.5-1 Hill hold enable ”Off/HH/S””
Pin A12 Analogue AD3 -- Steer pot
This pin is used only in traction applications.
The function is activated by means of parameter “M2-5 Dual motor configuration ”DMconfig”” in the Controller
Set-up menu.
It is activated both if set to 1 (Dual Motor Left) or 2 (Dual Motor Right) or 3 (Single Motor with steer pot. Speed
limit Right). The input can be connected to a 3-wire 5kΩ potentiometer that measures the steering angle of the
vehicle.
The active range of the input, when used by a steering potentiometer, is defined by the following parameters:
• “M1.8-1 Steer pot minimum voltage level”StrMin”” defines the voltage corresponding to the minimum
steering angle (full left hand lock)
• “M1.8-2 Steer pot middle point voltage level ”StrMid”” corresponds to a 0° steering angle, i.e. the vehicle
no steering
• “M1.8-3 Steer pot maximum voltage level ”StrMax””. defines the voltage corresponding to the minimum
steering angle (full right hand lock)
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