Motion Control Engineering Nidec iControl

4-6 Manual # 42-02-2223
Final Adjustment
Reaching Contract Speed
Note
Be sure to read this entire section before performing the following procedure. The car must be on Test
operation (iBox Test switch to ON) throughout the setup procedure. This prevents the doors from operat-
ing during adjustment.
Final Adjustment Before Running at Contract Speed
The following adjustments must be made in preparation for contract speed operation.
Speed Pick Delay
To achieve proper starting, without rollback or snapping away from the floor, a variable delay in
the application of the pattern signal is provided. Speed pick delay 1, on the Configuration >
Brake > Control tab, determines the amount of delay from the time the drive processor activates
the Run Enable signal to the time the pattern generator sends out the pattern signal.
1. The brake should just clear the brake
drum as the car is beginning to accelerate.
The recommended initial setting for
(Brake) Pick delay = 0.400 and for Speed
Pick Delay 1 = 0.500. The correct settings
can be determined by watching the drive
sheave. Some rollback may be tolerated
for now, but will be corrected later.
2. If the Drive On Fault (DRO) appears on
the iBox LCD display when direction is
picked, first increase Pick delay and then
increase Speed pick delay 1 to coordinate
the application of the pattern signal with
the picking of the brake.
Figure 4.1 Timer Diagram
Pick Voltage
Hold Voltage
Motor
Contactor/
Drive Enable
Brake
Contactor
Doors Locked High
Pick Delay
Hold Delay
Speed Pick Delay 1 Timer
Pattern
Applied
80% of Pick
Voltage
Pattern
Brake
Door Open
Limit High