iControl Messages
6-75
6
iControl DC
Up Direction Limit Open, UP DIR LIMIT OPEN
Description: The up normal terminal direction switch is open
Car Reaction: Immediate stop if moving. Further up direction movement is prevented.
Troubleshooting:
1. Verify that the switch is operating properly.
2. Verify correct state of the iBox UNTD input.
3. Verify UNTD switch activating/deactivating at the appropriate location (normally 2” below the bottom
terminal landing - see prints).
Up Emergency Terminal Switch Position Fault, UP ETS POSITION FAULT
Description: Reported position encountering Terminal Switch differed from learned switch position by more
than set position margin. This fault may be bypassed on the Diagnostics > Fault Bypass tab.
Car Reaction: Emergency Stop: Motor contactor and brake contactor immediately dropped. All hall and car
calls cancelled. After car is stopped, it will run at Correction speed to next available floor and cycle door. Door
Open button will remain operational. If generated when car moving, fault will stay latched and Fault Reset
button must be pushed to clear. If generated when car stopped, fault will self clear when condition ends.
Troubleshooting:
1. Physically check the integrity of the switch and wiring.
2. Check the iBox input for the switch.
3. On Diagnostics > Terminal Switches Status tab, compare Last pass position to Learned position for
switch. Verify Position Margin within reasonable range (Configuration > Terminal Switches tab). If appro-
priate, move switch closer to the terminal landing.
4. Relearn the NTS and ETS switches. Please refer to “Learning Normal & Emergency Terminal Limit
Switches” on page 4-13.
Up Emergency Terminal Switch Shutdown, UP ETS SHUTDOWN
Description: Up Emergency Terminal Switch opened at speed or position exceeding specified threshold. Fault
stays latched and Fault Reset button must be pushed to clear. If generated when car stopped, fault will self
clear when condition ends.
Car Reaction: Emergency stop: Motor contactor and brake contactor immediately dropped.
Troubleshooting:
1. Fault logged in conjunction with a speed or position fault at UETS. Check Event Log and follow trouble-
shooting for Up Emergency Terminal Switch Position Fault or Safety A (or B) UETS Level 2 Speed Fault.
2. Press iBox Fault Reset to clear the fault.
Up Normal Terminal Switch ’n’ Level 1 Speed Fault, UP NTS’n’ L1 SPEED FLT (n = 1 to 5)
Description: Level 1 Overspeed fault detected at Up Normal Terminal switch 'n' (1 to 5). When the switch
opened, the car was traveling faster than defined by Level 1 overspeed settings (sum of learned speed plus
Overspeed 1 Margin percentage setting on Configuration > Terminal Switches tab) but not fast enough to
trigger the Level 2 overspeed fault. This fault may be bypassed on the Diagnostics > Fault Bypass tab.
Car Reaction: Controlled stop using Emergency Slowdown pattern parameters.
Troubleshooting:
1. On the Diagnostics > Terminal Switches Status tab, compare the Last pass and Learned speeds for this
switch. If appropriate, increase the Overspeed 1 Margin on the Configuration > Terminal Switches tab.
2. May be caused by a change in the Pattern parameters. Always re-learn the terminal switches after any
changes to Pattern parameters.
3. One or two floor runs can sometimes come in “hotter” than multi-floor runs.(the switches are learned
making full hatch runs). If short runs are causing the problem, increase the Overspeed 1 Margin (Config-
uration > Terminal Switches tab) or lower the Standard profile - High Roll Jerk parameter (Configuration
> Pattern > Modes tab.
4. Can also be caused by a car that is following the pattern poorly, possibly due to heavy load or poor speed
loop performance. In this case, adjust the speed loop to follow pattern as well as possible and/or alter
the pattern parameters to produce a gentler deceleration and approach to the floor (then re-learn the
switches). Please refer to “Terminal Switch Overspeed and Position Faults” on page 4-57.
Table 6.3 iControl Messages
iControl Messages
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