R.P.S. Corporation 290 Series Operating Instructions & Parts Manual - page 20
290/350 Operator and Parts Manual V13.1210
20
CENTRAL COMMAND II; V.2 SYSTEM DIAGNOSTICS
Code
Probable Cause
Service Action
7000
7001
7500
Wiring fault on 6-way serial link between Trio and
LCD
Check the wiring and connectors on the 6 way connections on the Trio and LCD
7501
LCD memory corrupt
Disconnect batteries and wait for 1 min before re-applying power
7600
Open circuit on brush motors or brush motor wiring
Check the Brush motor connection on the Trio and check the wiring from this connector down to the Brush motor and
checking connections all the way. Otherwise possible Brush motor fault.
7601
Brush current overload (“thermal” trip)
Incorrect programming, incorrectly specified Brush motor, Brush motor developing a fault, excessive resistance on brushes
or brushes pushing down too hard on floor.
7602
Brush current overload (“magnetic” trip)
Incorrectly specified Brush motor, Brush motor developing a fault
7603
Possible short circuit on brush motors or wiring
Check the Brush motor connection on the Trio and check the wiring from this connector down to the Brush motor and
checking connections all the way. Otherwise possible Brush motor fault.
7604
Dependent on programming
Incorrect software program - check program, otherwise possible controller fault.
7700
Open circuit on vac motors or vac motor wiring
Check the Vac motor connection on the Trio and check the wiring from this connector down to the Vac motor and checking
connections all the way. Otherwise possible Vac motor fault.
7701
Vacuum current overload (“thermal” trip)
Incorrect programming, incorrectly specified Vac motor, Vac motor developing a fault, debris in Vac motor or airways
blocked by debris
7702
Vacuum current overload (“magnetic” trip)
Incorrectly specified Vac motor, Vac motor developing a fault
7703
Possible short circuit on vacuum motors or wiring
Check the Vac motor connection on the Trio and check the wiring from this connector down to the Vac motor and checking
connections all the way. Otherwise possible Vac motor fault.
7800
Open circuit on traction motor or traction motor wiring
Check the Traction motor connection on the Trio and check the wiring from this connector down to the Traction motor and
checking connections all the way. Otherwise possible Traction motor fault.
7801
Possible short circuit on Traction motor or wiring
Check the Traction motor connection on the Trio and check the wiring from this connector down to the Traction motor and
checking connections all the way. Otherwise possible Traction motor fault.
7802
Traction motor current has exceeded current limit for
the foldback time
Excessive driving up an incline, or machine driven up against an obstacle or step.
7900
E-stop input active or wiring fault
Check for wiring short circuits on the 20 way connector on the Trio, the 16 way connector on the LCD (if used) and the
wiring to the emergency stop switch and the emergency stop switch itself. Otherwise incorrect operation of machine.
7901
E-stop input active or wiring fault (programmed as
belly button)
Check for wiring short circuits on the 20 way connector on the Trio, the 16 way connector on the LCD (if used) and the
wiring to the belly button stop switch and the belly button switch itself. Otherwise incorrect operation of machine.
All 70xx codes – Check wiring of brake and freewheel
switch
Check for wiring short circuits on the 20 way connector on the Trio, the 16 way connector on the LCD (if used) and the
wiring to the freewheel switch and the switch itself.. Check the Traction motor connection on the Trio and check the wiring
from this connector down to the electromagnetic brake on the Traction motor and check connections all the way. Can be
caused by excessive pushing or rolling down a slope or incorrect operation of the machine.
FORM 10004
2 OF 2
REVISED: 10/19/2005
DIAGNOSTIC CODES