Bucher C-LRV Series User Manual

C−LRV lift control valve Operation
85/92
300−I−9010212−E−10/08.08
Further de-
tails (code,
see 5.3.3)
RemedyCause
Display on
Handterminal
Warn:
0 Point
Null point outside of ±0.20V Warning message, not a fault 103, 301,
401
S Mechanical null point is wrongly
set
S Reset the mechanical null point
S Bypass pressure is too high S Set the bypass screw on the
valve correctly (unscrew it
slightly)
Err:
0−Point+
Automatic null point adjustment
outside of +1.00V
103, 105,
201, 301,
402
S Bypass pressure is too high S Set the bypass screw on the
valve correctly (unscrew it
slightly)
Err:
0−Point−
Automatic null point adjustment
outside of −1.00V
103, 105,
201, 301,
402
S Emergency lowering valve actu-
ated
S Leakage
Warn:
A0 Point
Null point outside of 1.00V dur-
ing relevelling
Warning message, not a fault 103, 105,
301, 401
S Mechanical null point is wrongly
set
S Bypass pressure is too high
S Emergency lowering valve actu-
ated
S Reset the mechanical null point
S Set the bypass screw on the
valve correctly (unscrew it
slightly)
Err:
Unknown
Unknown fault
S Internal software fault S Upgrade/reinstall software
Warn:
Demand
Automatic demand signal reduc-
tion was invoked, maximum
speed was reduced for this travel
Warning message, not a fault 104, 107,
301, 401
S Maximum speed too high S Decrease the maximum speed
S Oil temperature too low S Install an oil heater, or use
thinner oil
S Too heavy a load with hot oil S Install an oil cooler, do not over-
load the car
Err:
Input−V.−
Negative voltage from power sup-
ply unit is outside of −17V...−34V
103, 104,
201, 301,
403
S Negative voltage is too low or too
high
S Unsuitable power supply unit for
the C−DELCON (Transformer
code:
280−G21/281−G21/282−G21)
S Check the incoming mains volt-
age
S Choose the correct power supply
unit to suit the mains voltage
S Replace the power supply unit
Info:
Cmd−Dir.
Command direction changed dur-
ing travel
Information 103, 104,
105, 301,
403
S Fault on K1 to K4
(Terminals 1 to 4)
S Cure the cause of the fault

Bucher C-LRV Series Specifications

General

Brand	Bucher
Model	C-LRV Series
Category	Control Unit
Language	English