M5.6-1 Timed current limit timer “IthTime”
M5.6-2 Timed current limit maximum current threshold “CurrTh”
M5.6-3 Timed current limit low current threshold “ImaxLow”
It is HIGLY RECOMMENDED to avoid using this function 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.
Timed current Limit
The graph below shows the parameters that are involved in setting up the Timed Current Limit. This feature
can be used to protect the vehicle’s motor(s) from overheating.
If the current rises above a set threshold (“M5.6-2 Timed current limit maximum current threshold “CurrTh””)
for a specified period of time (“M5.6-1 Timed current limit timer “IthTime””), the controller can reduce the
maximum current available to the motor to a lower current (“M5.6-3 Timed current limit low current threshold
“ImaxLow””). After the reduction has occurred, the maximum current output will remain at the lower level for
a period of 3 times the “M5.6-1 Timed current limit timer “IthTime””. If necessary, once this period has expired,
the current can then be returned to its original level.
Example
This sets the period of time, which if exceeded, will initiate a reduction in the controller’s maximum current
output. A programmed value of zero disables the Timed Current Limit feature.
The adjustable range is 0s to 60s in 1s steps.
Example:
“M5.6-2 Timed current limit maximum current threshold “CurrTh”” is set to 420Arms
“M5.6-3 Timed current limit low current threshold “ImaxLow”” is set to 400Arms
“M5.6-1 Timed current limit timer “IthTime”” is set to 10s
If the motor current is above 420Arms for 10 seconds, then the controller will reduce the maximum current
available to 400Arms for a period of 30 seconds (3 x 10 secs).
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