Troubleshooting
6-26
U30 Microprocessor Control
www.NabcoEntrances.com
Part #15-9000-30
Rev. 3-12-13
Trouble detected by U30 Microprocessor Control
Problem
Solution
Slide door does not open
Resolution
● Check the sensor wiring and activation sensors. LED indicators (61, 6B,
62) will light when activation occurs. Try shorting out terminals 2 (Red) & 3
(Black) to simulate an activation signal.
● Connect the Handy Terminal and push “TEST” to simulate an activation
signal.
● Measure voltage between terminals 2 (Red) and 10 (Blue). For normal
operation, the Blue panic breakout wire follows a series circuit through the
ON/OFF switch, through the panic breakout switches and to Red (common).
With rocker switch in the ON position and sidelites closed, voltage should
equal 0 VDC. If voltage is 12 VDC, the panic breakout circuit is open. Check
the Blue wire and determine where the circuit is open. LED indicator (BA)
may help.
Abnormal door operation
Resolution
● Check or reset the stroke and check the R-hand/L-hand setting.
● Check Handy Terminal settings.
Message Display does not
move from “GYRO TECH
HANDY TERMINAL”
Resolution
● Ensure rocker switch is set to ON.
● Measure voltage between terminals 2 (Red) and 10 (Blue). For normal
operation, the Blue panic breakout wire follows a series circuit through the
ON/OFF switch, through the panic breakout switches and to Red (common).
With rocker switch in the ON position and sidelites closed, voltage should
equal 0 VDC. If voltage is 12 VDC, the panic breakout circuit is open. Check
the Blue wire and determine where the circuit is open. LED indicator (BA)
may help.
● Install jumpers in all exposed blue wire connectors.
