Braun NUVL855R service manual Switches

Page 19

Troubleshooting Diagnosis Chart

FUNCTION

 

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

9.11

Bad circuit breaker

Check for proper operation of Below Stow switch.

9.00

9.12

Poor plug connections

Remove weight from platform.

BARRIER WILL

 

 

 

NOT OPERATE

)DXOW\EDUULHUDFWXDWRUPRWRURU

Check harness connectors A1 and A2, E1, N1,

UP OR DOWN

 

actuator out of adjustment

1()DQG)&KHFNSRZHUDWPRWRU$G-

WITH REMOTE

 

 

 

just or replace actuator if necessary.

OR OVERRIDES

 

 

 

 

 

 

9.14 Bad power and ground

See 1.00

 

 

 

 

 

 

 

 

10.00

10.11 Barrier Down LED (D29)

Check Barrier Down switch for proper operation

BARRIER

OPERATES WITH

 

not illuminated

with LED on P.C. board. Replace or adjust as

OVERRIDES BUT

 

 

necessary.

WILL NOT GO UP

 

 

 

WITH REMOTE

 

 

 

 

 

 

 

 

 

11.00

11.11 Ground sensor LED (D23)

Check Pressure Transducer. Replace or adjust

 

not illuminated

as necessary. See Ground Sense Calibration on

BARRIER

 

 

page 5.

OPERATES WITH

 

 

 

OVERRIDES BUT

11.12 Below Stow LED (D24)

Check Below Stow switch for proper operation.

WILL NOT GO

 

not illuminated

Replace or adjust as necessary.

DOWN WITH

 

 

 

REMOTE

)XOO2XW/(' ' 

&KHFN)XOO2XWVZLWFKIRUSURSHURSHUDWLRQ

 

 

not illuminated

Replace or adjust as needed.

 

 

 

 

 

 

 

 

 

12.11

Improper terminal block wiring

Check terminal block for correct wiring

 

 

 

FRQÀJXUDWLRQ

12.00

12.12 No power going to switches

Check power on connector A1, pins 1 and 2.

SWITCHES

)DXOW\ZLULQJ

Check continuity of wires from switches to

DO NOT

ACTIVATE

 

 

connector A2.

 

 

 

LED(S)

)DXOW\FRQQHFWLRQV

Check for proper connections on each switch and

 

 

 

 

on each connector on the harnesses. Replace

 

 

 

contact if necessary. See diagram on following

 

 

 

page.

 

 

 

 

 

 

 

 

13.00

)DXOW\ZLULQJ

Check for proper wiring to door openers.

DOORS

DO NOT

 

 

 

OPEN

 

 

 

 

 

 

14.00

)XOO2XW/(' ' LOOXPLQDWHG

Lift is out but not below stow level.

 

and Below Stow LED (D24)

 

DOORS

 

not illuminated

 

DO NOT

14.12 Lift Out LED (D25) illuminated

Lift not stowed fully. Adjust Lift Out switch.

CLOSE

 

 

 

 

Page 17

Image 19
Contents Series Congratulations Warranty and Registration InstructionsContents Lift Terminology Lift HousingSwitch and Sensor Locations EHORZÁRRUOHYHO Certification Checklist Diagnostic Procedures$GMXVWPHQW3URFHGXUHV Adjustments and CalibrationTerminal Strip and Door Operators Floor Level and Inner Roll Stop AdjustmentsInner Roll Stop Adjustment UROOVWRSUHVWVRQWKHÁRRU QRWDG- just the in- ner roll stop Inner Roll Stop Occupied Sensor Adjustment Lubrication Diagram When servicing the lift at the recommended intervals Maintenance and Lubrication Schedule1500 4500 Cycles Function Possible Cause Remedy Troubleshooting Diagnosis ChartLift will GO UP with Switches Contact Removal Board Wiring SchematicQty Description Hydraulic Parts ListHydraulic Diagram Qty Description Pump Module Parts ListPump Module Diagram Complete Lift Exploded View Unfold ModuleforQty Description Repair Parts ListLift Housing Detail Exploded View Lift Carriage Detail Exploded View Lift Platform Detail Exploded View Providing Access to the World CJKA-**G