Simga2N Traction Advanced Manual– V1.3 Page 41 (166) ©2021 DMC GmbH Herten Germany
Menu 1.1 “Drive response”
Parameter name “Calibrator text”
Accelerator ramp time “Acc Ramp”
Accelerator release ramp time “Rel Ramp”
Neutral brake torque “NBrake”
Neutral brake ramp time “NBrkRamp”
Proportional direction brake ”PropDB”
Direction brake torque “DBrake”
Direction brake ramp time “DBrkRamp”
Max. direction braking speed “MxDBrkSp”
Foot brake torque “FBrake”
Foot brake ramp time “FBrkRamp”
Drive torque reduction time “DrTrqRtm”
Brake torque reduction time “BrTrqRtm”
Halt brake torque “HltBrake”
Halt brake ramp time “HltRamp”
Quick Stop brake torque “QSBrake”
Quick Stop brake ramp time “QSRamp”
M1.1-1 Accelerator ramp time “Acc Ramp”
This sets the time taken to increase torque from zero to maximum torque demand in Torque Control mode, or
the time take to accelerate from zero speed to maximum speed (or to active speed limit) in Speed Control
mode (according to “M2-13 Variable/Constant ramp time “CnRmpTm””). Speed or Torque control mode
depends on “M2-1 Control Mode “Spd/Torq”” selection.
The maximum torque demand is set by “Maximum motor current” (adjustable in “Menu 3 “Autotuning””), and
it is assumed correspond to 100% of deliverable Torque.
The maximum speed demand is set by ”Maximum motor frequency” (adjustable in “Menu 3 “Autotuning””),
and it is assumed correspond to 100% of speed.
In torque mode increasing the value results in a slower torque response, while decreasing the value results in
a faster torque response.
In speed mode increasing the value results in a slower vehicle acceleration, while decreasing the value results
in a faster vehicle acceleration.
If controller is in torque mode the acceleration delay correspond to the time, when accelerator fully pressed,
for torque to rise from 0 % to 100%.
If controller is in speed mode the acceleration delay correspond to the time, when accelerator fully pressed,
for speed to rise from 0 % to 100% or from 0% to the active speed limit, depending upon parameter “M2-13
Variable/Constant ramp time “CnRmpTm””.
Important for speed control:
When speed control selected (“M2-1 Control Mode “Spd/Torq””=0) using a low value of ramp
time will bring bumpy response to accelerator deflection.
M1.1-2 Accelerator release ramp time “Rel Ramp”
This sets the time taken to reduce torque from maximum torque to zero torque in Torque Control mode, or to
decelerate from maximum speed (or from active speed limit) to zero speed in Speed Control (according to “M2-
13 Variable/Constant ramp time “CnRmpTm””). Speed or Torque control mode depends on “M2-1 Control
Mode “Spd/Torq”” selection.
In torque mode increasing the value results in a slower torque reduction rate, while decreasing the value results
in a faster torque reduction rate.
In speed mode Increasing the value results in a slower vehicle deceleration, while decreasing the value results
in a faster vehicle deceleration.