Simga2N Traction Advanced Manual– V1.3 Page 105 (166) ©2021 DMC GmbH Herten Germany
M5.4-5 Drive battery current limit adv mode 2 “IBatMax2”
M5.4-6 Regenerative battery current limit adv mode 2 “IBatReg2”
These two settings define the static Battery Current Limits (BCL) for motor drive or regen current in the battery.
They are active for traction software only. If set to maximum value (default value) the corresponding BCL is
disabled.
They define the Battery Current Limits adopted when the Advanced Driving Mode is enabled (parameter “M2-
3 Digital input 5 and 6 configuration ”Sp/In/Ad”” set to 2) and Drive Mode 2 is selected.
It is HIGLY RECOMMENDED to avoid using the Drive Battery current Limit on Walkie-type
vehicles with speed control mode. This could lead to serious safety problems and cause
operator’s injuries.
DMC declines any responsibility for incorrect setup of this parameters.
M5.4-7 Battery current limit cut rate “ICutRate”
This setting is to tune how fast the battery current limit is acting. It sets the rate of action when the battery
current is far from the battery current limit value.
Most of the times default values are fine. It has to be increased if the battery current limit is too slow in action.
It has to be decreased if battery current limit when is start to be active is too harsh. This adjustment is active
on both drive and regen battery current limits.
M5.4-8 Battery current limit cut rate fine adjustment “ICutRtFN”
This setting is to tune how fast the battery current limit is acting when the battery current value is close to the
battery current limit one. Thus is setting the fine action on battery current limitation.
Most of the times default values are fine. It has to be adjusted if some battery current oscillation in the range
of 5-15 A are noticed or if the drive feeling shows some oscillation when battery current limitation is active. In
this case try first to increase and if not solve the oscillation try to reduce it. This adjustment is active on both
drive and regen battery current limits.
M5.4-9 Regenerative BCL enabled during direction braking “BCLRegDB “
• If this parameter is set to 0, Regenerative battery current is not limited during Direction Braking
operation. This option is the default condition and is made to avoid the vehicle is rolling back on a slope
in case of regenerative battery current limitation.
• If this parameter is set to 1, Regenerative Battery Current limit during Direction Braking is enabled. This
means that Regen Battery current limitation is always active for any braking condition.
If the setting is set to 1 the priority is given to the battery safe operation, so current
limitation is done with priority on braking conditions. This option is better if controller is
managed via CAN by a PLC or VCU that supervise driving functionality and/or the motor
and controller are used as a generator.
If the setting is set to 0 the priority is given to the driving safe operation for avoiding
possible roll back on slope.
This parameter has a straight effect on the behaviour of a DMC Controller when:
• It is used in torque mode, controller Via CAN in Setpoint mode;
• It is used in a Front/Rear Dual Motor application.
For details about those application and the impact of this parameter, please refer to the
specific manual ([1]).
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