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1. DELCOS 3100 Electronics
[Display] / Problem
Possible Cause
Remedy
25
[GARDNER DENVER]
[SETUP-CODE 1:_______?]
Hardware fault DELCOS
DELCOS electronics must be changed
as a temporary measure: enter setup
codes, check all settings and re-set if
necessary
(2)(3)(4)(5)
After changing the DELCOS
electronics, the message shows no
fault. The new setup code must now
be re-entered
A fault/warning cannot be
acknowledged
Fault/warning still present.
Search for cause and rectify
No display
No voltage on the machine.
Check fuses, changing if necessary
No DELCOS control voltage (10 VAC)
Establish power supply, check fuses.
Pressure and temperature
indicator failed, indicator (----)
Ground fault or short circuit for sensor B1,
B2 or R2
Check fuses, changing if necessary
[AUTO RESTART] function not activated
System not starting
automatically after power failure
Power failure lasted too long
(4)
[CONTINUOUS OPERATION] mode
selected
(4)
Switch on
(4)
System constantly running off-
load without automatically
switching to standby
Very short pressure requests during run-on
time
Select [automatic mode] mode
No compressed-air request
within the selected switching
points
(4)
Pressure changeover active through timer
or external contact
(5)
Incorrect display of volumetric
flow (version RS and SR only)
Volumetric flows incorrectly set.
RS: Check max. and min. volumetric
flow in [CONTROL MENU] menu (see
Chapter 1.4.1).
SR: Check max. and min. volumetric
flow in [LIMIT VALUES] menu (see
Chapter 1.3.4).
RS and SR: Check volumetric flows of
BLS slaves in [BASE LOAD SELECT.]
menu.
[FAULT SR-DRIVE (1)]
Control board overvoltage
(+15V internal)
Control-power transformer incorrectly set,
undervoltage in power supply.
Check power supply (all 3 phases).
Check control-power transformer
setting, correcting if necessary.
[FAULT SR-DRIVE (2)]
Control board undervoltage
(+15V internal)
Ribbon cable faulty between control board
(PCB94) and gate drive board (PCB95).
Check ribbon cable between control
board (PCB94) and gate drive board
(PCB95).
Faulty RPT sensor or its connection lead.
Check RPT sensor connection cable
as far as control board (PCB94) plug
J1.
Control or gate drive board faulty.
Otherwise contact Gardner Denver
Service.
[FAULT SR-DRIVE (3)]
Control board overvoltage
(+15V external)
Wiring fault at plug of control board J5.
Make sure that nothing is connected at
terminal 3 of control board J5 plug.
[FAULT SR-DRIVE (4)]
Control board Undervoltage
(+15V external)
Control or gate drive board faulty.
Otherwise contact Gardner Denver
Service.