PG DRIVES TECHNOLOGY AC TRACTION – MOTOR SET-UP
1.38 Threshold Timer – (IthTime)
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: 4.36 Current Threshold is set to 420Arms
4.37 Lower Maximum Current is set to 400Arms
4.38 Threshold Timer 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).
There are maximum permissible values, which must not be exceeded, for each of these parameters. These values are shown in
the table below.
Maximum Drive Current Current Threshold Threshold Timer Lower Maximum Current
ACT865L 460Arms 460Arms 60s 460Arms
ACT835M 250Arms 250Arms 60s 250Arms
ACT817S 120Arms 100Arms 20s 80Arms
ACT465L 460Arms 460Arms 60s 460Arms
ACT445M 320Arms 320Arms 60s 320Arms
ACT425S 180Arms 150Arms 20s 120Arms
ACT225S 180Arms 180Arms 60s 180Arms
The values in the table above should never be exceeded.
1.39 Hill Hold Time (HHTime)
The function of this parameter is dependent on the setting of, 3.4 Anti Roll-off, in the Controller Set-up menu.
If set to ‘0’ (Coast), then this parameter has no effect.
If set to ‘1’ (Hill Hold & Restraint), then this determines the period of time that the vehicle will remain stationary on a gradient,
following Neutral Braking. After this time, the controller will enter a Restraint mode at 4.40 Hill Hold Speed until the motor is no
longer moving or the handbrake is applied.
If set to ‘2’ (Restraint), then this determines the period of time that the controller will use DC current to restrain the vehicle, following
Neutral Braking. After this time, the controller will enter a Restraint mode at 4.40 Hill Hold Speed until the motor is no longer moving
or the handbrake is applied.
The adjustable range is 0s to 60s in 1s steps.
1.40 Hill Hold Speed – (HHSpeed)
This sets the maximum speed of the vehicle during Restraint mode after 4.39 Hill Hold Time has passed.
The adjustable range is 0V to 25.5Vrms in 0.1Vrms steps.
1.41 Hill Hold Voltage Minimum – (HHVmin)
This sets the minimum voltage that is used when the vehicle is in Hill Hold Mode. It overrides the setting of 4.9 Minimum Voltage.
The adjustable range is 0V to 25.5Vrms in 0.1Vrms steps.
SK79646-01 63
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