Nilfisk SC800 ST User Manual

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Service Manual: SC750, SC800, SC 750 ST, SC800 ST

Form Number 56043150 Page 154

Trip Type Type Description Trip Code Code Description and Possible Causes

Undened 300 Parallel Speed Pot. Wiper Error

This occurs when the controller detects that the Parallel

Speed Limit Potentiometer Wiper is open circuit or has been

shorted to one of the throttle references. The Parallel Speed

Limit Potentiometer Wiper input is located on pin 9 of the

14-way Tiller Connector. If this error occurs, the controller

will allow drive to continue but at the minimum programmed

speed. Check the parallel speed potentiometer, connections

and relevant wiring to the i-Drive.

If the trip is still present after the potentiometer, connectors

and wiring have been checked, the controller may be defec-

tive. Refer to Section 3.

Undened 4401 Record Of Possible Control Fault.

‘4401’ is not actually a trip code but rather a historical record

of the number of times the i-Drive has tripped with a suspect-

ed controller fault. Each time the i-Drive trips with an error

not shown in the table above, it records one instance of the

code ‘4401’ in the controller’s System Log. The actual con-

troller trip code is also recorded in the i-Drive’s Control Log.

The number of ‘4401’ trips shown in the System Log should

therefore equal the cumulative number of trip occurrences

shown in the Control Log. More information on the i-Drive’s

diagnostic logs can be found in Chapter 3, Section 12. Check

the batteries, motor, connectors and wiring to the i-Drive.

Please contact PGDT for further advice before returning a

controller based solely on the presence of historical ‘4401’

trips in the System Log.

* Dependant on programming

Trip Types 4 and 5 not used for i-Drive

Section 3 Servicing Of Defective Units

There are no serviceable parts within the controller. Opening or making any unauthorized adjustments or modi-

caons to the controller or its components will invalidate any warranty and may result in hazards to the operator

and is strictly forbidden.

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Nilfisk SC800 ST Heavy-Duty Cleaning