Nabco U30 User Manual

Rev. 3-12-13 Part #15-9000-30
www.NabcoEntrances.com U30 Microprocessor Control
6-25 Troubleshoong
CHAPTER 6: TROUBLESHOOTING
Trouble detected by U30 Microprocessor Control
Problem Soluon
Trouble detected by U30
Microprocessor Control
Cause For problems indicated within 4, the U30 Microprocessor Control will stop
the Slide door and memorize the nature of the trouble.
Resoluon Connect the Handy Terminal for error messages, clear and repair.
Cause The U30 Microprocessor Control does not operate.
Resoluon Check wiring connecons and acvaon devices. LED indicators help to
locate cause.
Check to ensure there is 120 VAC to the power supply and 20 VAC to the
U30 Microprocessor Control.
Change the U30 Microprocessor Control or motor.
Handy Terminal buons or
Message Display do not work
Cause Handy Terminal is too cold.
Resoluon Bring the Handy Terminal up to room temperature.
Cause Hand Terminal or cable may be defecve.
Resoluon Try using it on another door to determine the defecve component.
Cause Cable from the U30 Microprocessor Control to terminal port is defecve.
Resoluon Replace cable.
Door recycles on its own Cause ● Obstrucons during the closing cycle will cause the Slide door to recycle
open. Operaon should connue as soon as recycling is done.
● Obstrucons during the opening cycle will cause the door to stop.
Aer losing the acvang signal and me delay, the door will close. If the
acvaon signal connues, the door will remain open in stopped posion.
Resoluon Check for any obstrucons that are prevenng the door from closing such
as ght weather stripping, binding rollers or guides, debris in the oor track
etc. The U30 Microprocessor Control indicates the count for each recycle on
the Handy Terminal.
Cause Header mounted sensors that are incorrectly adjusted can detect a closing
door panel or other moving objects and reopen the door.
Resoluon Re-adjust moon sensors.
Cause Crosstalk between adjacent sensors will cause sensor ghosng and
consequent Slide door recycling.
Resoluon Set dierent frequency modes for each sensor.
There was a Power Failure Aect ● Power failure lasng less than one second will not aect operaon.
● Power failure of one second or more will cause the U30 Microprocessor
Control to brake the door fully.
Outcome Once power is restored, the U30 Microprocessor Control will operate again.
Sengs to the Slide door operaon will remain in eect.

Nabco U30 Specifications

General

Brand	Nabco
Model	U30
Category	Controller
Language	English