PDF Technical Manual CLAAS ROLLANT 240 & 250 Balers - 738 KB
Access the complete technical and electric system manual for the CLAAS ROLLANT 240 and ROLLANT 250 round balers, including UNIWRAP models.
This document is vital for service technicians needing to diagnose and repair electrical issues.
It contains wiring diagrams, component locations, and troubleshooting charts.
Keep your baler's complex systems running smoothly with this expert guide.
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ROLLANT 240
ROLLANT 250
ROLLANT 240 with UNIWRAP
ROLLANT 250 with UNIWRAP
Technical Systems
Electric System
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TIC Rollant 240/250 Electric System
Key to diagram: A23 ROLLANT 240/250 Standard
module............................................. Wiring loom A – part 2
XD CAN bus socket (7 pin) ................... Wiring loom A – part 2
11/04 rol-e-ze 11
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Pin assignment in modules
Rollant 240
Rollant 250
UNIWRAP
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1b
Main power supply
Rollant 250 Comfort
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1d
Main power supply
UNIWRAP
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TIC Rollant 240/250 Electric System
Description of function:
Circulation shut-off valve To be able to build up the working pressure necessary for many
Use with UNIWRAP bale hydraulic control systems, the neutral hydraulic circulation must be
wrapper blocked (see chapter "Hydraulic system").
In this case, the circulation shut-off valve solenoid coil Y77-2
(UNIWRAP) on the bale wrapper is actuated by module A 23-1 in parallel
to the respective function.
When used with the bale wrapper, the bale wrapper module A 22
permanently actuates the circulation shut-off valve solenoid coil Y77-1
(Rollant 250). The circulation shut-off valve solenoid coil Y77-1 is
additionally blocked by mechanical means (see Operator's Manual).
Circulation shut-off valve To be able to build up the working pressure necessary for many
Use without UNIWRAP hydraulic control systems, the neutral hydraulic circulation must be
bale wrapper blocked (see chapter "Hydraulic system").
In this case, the circulation shut-off valve solenoid coil Y77-1
(ROLLANT 250) is actuated by module A 23-1 in parallel to the
respective function.
When used without the bale wrapper, a blind plug is mounted on X30.
This provides the connection between module A 23-1 and the circulation
shut-off valve solenoid coil Y77-1 (see note a). For further modification
measures refer to the respective chapter in the Operator's Manual.
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5b
Terminal
Rollant 250 Comfort for UNIWRAP
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TIC Rollant 240/250 Electric System
Description of function:
Performance data Connector XD serves for diagnosis with the Claas Diagnosis System CDS.
The performance data (total number of bales, operating hours, ...) are
saved in modules A 23-1 and A 23-2.
Each of these modules takes over a defined part of the functions required
for baling (see diagram).
Important: Module A 23-1 is connected to the same wiring loom as
diagnosis connector XD.
Task assignment of Function Module 1 Module 2
modules Tailgate control !
Circulation shut-off valve !
Pick-up !
Twine, net wrapping !
Rotocut knives (ON/OFF) !
Reverse rotor !
! Option
CAN bus Data exchange between electronic components via a serial network.
(Controller Area Network)
- Measured value table CAN high (Ueff) CAN low (Ueff) Diagnosis
CAN bus
2.52 V ± 0.1 V 2.49 V ± 0.1 V System OK
2.50 V 2.50 V Short circuit CAN high to CAN low
12 V >2.50 V Short circuit CAN high to +12 Volt
0V <2.5 V Short circuit CAN high to earth
>2.50 V 12 V Short circuit CAN low to +12 Volt
<2.50 V 0V Short circuit CAN low to earth
11/04 rol-e-06b 71
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6d
CAN bus, module power supply
UNIWRAP up to serial no. 72900130
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TIC Rollant 240/250 Electric System
Description of function:
Function pre-selection The Rotocut position is pre-selected by means of main switch ON / OFF -
ROTOCUT ON / OFF S75 (S75 closed = ROTOCUT ON).
For ROTOCUT operation, module A 23 controls the corresponding
solenoid coils Y 54/Y55.
ROTOCUT ON When the ROTOCUT knives ON solenoid coil Y55 is actuated and the
pick-up is raised, the knives swing in - ROTOCUT ON.
ROTOCUT OFF When the ROTOCUT knives OFF solenoid coil Y54 is actuated and the
pick-up is lowerd, the knives are forced out by the baled material -
ROTOCUT OFF.
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TIC Rollant 240/250 Electric System
Description of function:
Operational readiness The machine is ready for automatic wrapping when signal light H3 lights
up.
Fast blinking of signal light H3 means that the machine is not ready for
operation. In this case, the bale ejector actual value switch Z6, the
tailgate closed switch Z16 and / or the cam track switch Z35 are actuated
(see sequence diagram).
Selection of wrapping type The wrapping type (net / twine) is pre-selected using switch S 74. After
this, further modifications must be carried out (see Operator's Manual).
Automatic wrapping release A completely filled bale chamber makes the baler reach the pre-set
hydraulic baling pressure.
The tailgate is pushed open by approx. 5 cm.
Signal light H3 starts blinking slowly. The wrapping process is started
automatically (see sequence diagram).
Early wrapping release When actuating the wrapping release switch (manual) S77, the start of
the wrapping process may be released early.
Wrapping process delay When actuating the wrapping delay switch (manual) S76, the start of the
wrapping process may be delayed. The wrapping process will start
automatically only after switch S76 has been released.
Settings:
- Bale ejector actual Set the switch so that it can be pushed 5 mm max. (for functional check
value switch Z6 see sequence diagram).
- Tailgate closed Open the tailgate to 30 ± 5 mm. The gap at the elevation of the centre of
actual value switch Z16 rotation of roller no. 5 shall serve as measuring point.
Adjust the adjusting screw on the tailgate so that the switch changes its
signal at this position and that wrapping is started.
Adjust the mechanical limit so that the switch can be pushed 5 mm max.
- Cam track actual value Set the switch so that it can be pushed 5 mm max. (for functional check
switch Z35 see sequence diagram).
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TIC Rollant 240/250 Electric System
Twine wrapping sequence diagram: 1/2
Step
"Tailgate closed" switch Z16 not actuated no Step 100:
"Bale ejector" switch Z6 not actuated Automatic system off
"Cam track" switch Z35 not actuated and
"Tailgate open" switch Z17 not actuated
yes
0 Start (wait position)
"Tailgate closed" switch Z16 "Wrapping start" command from CCT
is actuated (open for approx. 1sec.) provided (manual wrapping start)
2 Y 38 "Twine coupling" is engaged
"Cam track" switch Z35 actuated
(twine arms at centre)
3 Stop Beep
31 Y 38 "Twine coupling" engaged
Rotate twine counter? no Step 33:
Twine fault
yes
Minimum twine wrapping selected More than minimum twine
in CCT? wrapping selected in CCT
Step 30 Y 38 "Twine coupling"
is disengaged
Step 31 Y 38 "Twine coupling"
is engaged
yes
"Cam track" switch Z35 actuated?
no
"Cam track" switch Z35 not actuated
(twine is being cut)
see next page see next page
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TIC UNIWRAP Electric System
Description of function:
Bale transfer After opening the tailgate, the bale rolls into the tipping cradle.
Bale in tipping cradle The Bale in tipping cradle sensor B102 detects that the bale is in the
tipping cradle (magnet in front of sensor). If the bale has not been detected
in the tipping cradle 1.5 seconds after tailgate opening, the “Err : Bale
bench” message is displayed in terminal A30-1 and the automatic
sequence is interrupted.
Tipping cradle transports After the bale has been detected in the tipping cradle, the Raise tipping
bale on wrapping table cradle solenoid coil Y138 is actuated. Detection of the Tailgate open switch
Z17 is a pre-condition for this. If this pre-condition is not met, the “Err :
Tailgate” message is displayed in terminal A30-1 and the automatic
sequence is interrupted.
Bale on wrapping table When the bale is on the wrapping table, the Bale on wrapping table switch
Z92 is actuated. The bale must have been detected on the wrapping table
1.5 seconds after actuation of the Raise tipping cradle solenoid coil Y138.
Otherwise the “Err : Bale table” message is displayed in terminal A30-1 and
the automatic sequence is interrupted.
Lower tipping cradle After transferring the bale to the wrapping table, the Lower tipping cradle
solenoid coil Y135 is actuated. Detection of the Tailgate open switch Z17 is
a pre-condition for this. If this pre-condition is not met, the “Err : Tailgate” is
displayed in terminal A30-1 and the automatic sequence is interrupted.
Tipping cradle down After the first of 3 magnets has been detected by the Tipping cradle down
Close tailgate sensor B103, the tailgate closes. Manual tailgate closing also requires that
the Tipping cradle down sensor B103 be detected. Otherwise, the “Err :
Tailgate” message will appear in terminal A30-1 and the tailgate cannot be
closed.
Wrapping table up The wrapping table at top sensor B105 detects if the wrapping table is in its
top position (solenoid in front of sensor). Otherwise the “Err : Wrapping
table” message is displaye din terminal A30-1 and the automatic sequence
is interrupted.
Sensor settings
- HALL sensor The sensors B102, B103, B105 should be set to a clearance of
(B102, B103, B105) 6 - 7 mm from the magnet upon detecting the signal
(magnet in front of sensor = 0 → I, see Wiring loom L).
- Bale on wrapping The Bale on wrapping table switch Z92 should change its signal after a
table actual value mechanical actuation from approx. 6.5 - 9.5 mm (0 → I)
switch Z92 (see also "Sensor test" chapter in Operator's Manual).
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21a
Wrapping arm rotation
UNIWRAP
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TIC UNIWRAP Electric System
Description of function:
Opening and closing of To open and close the film cutters, the Open film cutters solenoid coil Y139
film cutters and Close film cutters solenoid coil Y140 are actuated. The Wrapping table
raise solenoid coil (Y138) is actuated in parallel with this function. This is
required in order to transmit a load pressure signal to the input pressure
balance and to actuate the latter (see also "Hydraulic System" chapter).
Film break monitoring Rotation of the film rolls is monitored during the wrapping process under
the pre-condition that the wrapping arm is accelerated and rotates with a
min. speed of 20 rpm. It is also necessary to activate the film break
monitoring via terminal A30 or A30-1 (see also relevant chapter in
Operator's Manual).
Sensor signals At the top end of the stretch rolls, 4 magnets rotate below the Film break
sensors B109-1 and B109-2. According to the speed and the clearance to
the magnets, the sensors generate an alternating current. The Film break
monitoring transmitters V11-1 and V11-2 convert this alternating current
into a corresponding magnetic field.
Signal detection At each rotation of the wrapping arm, the Film break monitoring receiver
V12 detects the Film break monitoring transmitters V11-1 and V11-2. When
a transmitter has not been detected, the wrapping process is stopped and
the film break message is displayed in terminal A30 / A30-1.
Sensor setting On the pre-stretcher units, the film break sensors B109-1/109-2 should be
set to a clearance of 2-3 mm from the magnets (see Wiring loom M).
The clearance from the Film break monitoring transmitter V11-1/V11-2 to
the Film break monitoring receiver V12 should be approx. 10 – 12 mm if
the components cover each other up (see Wiring loom M).
11/04 rol-e-22a 141
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40a
Additional sockets
Rollant 250 Comfort
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40c
Additional sockets
UNIWRAP up to serial no. 130
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TIC Rollant 240/250 Electric System
Wiring loom B – part 1 (Rollant 250 Comfort / Rollant 250 Comfort for UNIWRAP)
Key to diagram: a Continued in wiring loom B – part 2
b Continued in wiring loom B – part 2
A30 CCT terminal ................................................................... 5a
B13 Twine roll left rpm sensor ............................................. 11c
B14 Twine roll left rpm sensor ............................................. 11c
H44 Buzzer ............................................................................. 5a
T12 Main switch................................................................ 1b, 1c
XT1 Terminal connector ................................................... 1b, 1c
XT2 Terminal connector ................................................... 1b, 1c
XV Power supply connector ........................................... 1b, 1c
X50 Lighting wiring loom connector...................................... 32a
Z35 Cam track actual value switch....................................... 11b
11/04 rol-e 170
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TIC Rollant 240/250 Electric System
Wiring loom K (UNIWRAP)
Key to diagram: U25 EMERGENCY OFF switch .............................................. 1d
X30 Connector ........................................................................ 1d
X36 Connector ...................................................................... 19a
X37 Connector ...................................................................... 19a
Y77-2 Bale wrapper circulation shut-off valve solenoid coil ..... 4c
Y133 Wrapping arm forward solenoid coil ............................. 21a
Y135 Lower tipping cradle solenoid coil ................................ 19a
Y136 Raise tipping cradle solenoid coil ................................. 19a
Y137 Lower wrapping table solenoid coil .............................. 19a
Y138 Raise wrapping table solenoid coil ............................... 19a
Y139 Open film cutters solenoid coil ..................................... 22a
Y140 Close film cutters solenoid coil ..................................... 22a
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