Reaching Contract Speed; Final Adjustment Before Running At Contract Speed; Speed Pick Delay - MCi iControl User Manual

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 operating 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
Doors Locked High
Door Open Motor
Contactor/
Limit High
Drive Enable
Brake
Contactor
Pick Delay
Speed Pick Delay 1 Timer
Reaching Contract Speed
Pattern
Applied
80% of Pick
Voltage
Hold Delay
Pattern
Brake
Pick Voltage
Hold Voltage
4-7
4