Itotec Robocut RC-100DX Operating instructions

TROUBLESHOOTING
PAPER GUILLOTINE
TYPE

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
CONTENTS
Power Supply..................................................................................1
・The power is not turned ON, and the power is turned OFF...1
T.D.C Lamp Lights Up.....................................................................1
Main Motor......................................................................................1
・The main motor cannot be started up. ...............................1
Display On Computer Display Unit..................................................2
1 The present position of backgauge is not displayed. .............2
2 "Err" is displayed............................................................... 2
Clamp..............................................................................................3
1 The clamp does not lower and the speed is low
when the clamp pedal is worked. ...........................................3
2 The clamp does not lower when the clamp pedal is worked,
and the speed is low.............................................................3
3 The clamp pressure during paper cutting is abnormal. ..........4
4 Pressure set value reference data ......................................4
Knife Drive........................................................................................5
1 Knife & clamp operation is not carried out............................5
2 The knife does not operate.................................................5
3 The knife stops halfway. ....................................................6
・ Knife circuit interruption due to power-OFF....................6
・ Insufficient holding time for cutting buttons ON-state.......7
・ Loose knife supporting bolt ..........................................7
・ Loose safety bolt ........................................................7
・ Safety beam guard operation ....................................... 8
・ Knife circuit error ........................................................8
Backgauge......................................................................................9
1 Abnormal noise during backgauge travelling........................9
2 The backgauge does not operate........................................ 9
Blower...........................................................................................10
1 The blower motor cannot be started up. ............................ 10
2 Insufficient air blow amount..............................................10
3 Air blow/stop control error................................................10
4 Abnormal noise .............................................................. 10

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
Paper Cutting Precision................................................................. 11
1Adjust the backgauge right & left,
upper & lower and exact size. ............................................ 11
2Residual cutting arises. .................................................... 11
Cut LineAdjustment ................................................................... 11
Working Lamp Adjustment.......................................................... 11
Clutch Key Switch Operation......................................................12
The knife is operated manually............................................................12
Soft Clamp..................................................................................13
Clamp Hold Circuit......................................................................13
Manual Backgauge Display........................................................13
Counter.......................................................................................13
Technical Information
(Maintenance engineering information used by reperesented engineer)
01 Fuse Detail Drawing & Clutch Key...................................14
02 Thermal Relay Reset .....................................................15
03 Safety Bolt Replacement ................................................16

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
1
Power Supply
(The power is not turned ON and turned OFF.)
Agreater part of power supply related trouble, such as "No power is turned ON." and
"The power is turned OFF.", is attributable to the input side. After taking safety
measures such that the unauthorized person is kept away from the machine, for
example, contact our repressentative.
【Technical Information 01 Fuse】
（Knife Circuit Interruption due to power-OFF on page 6）
Where there occurred power supply trouble during a series of operation cycle and
the machine stopped midway, eliminate the product inside the machine by backgauge
advance operation, then carry out operation after restoration.
Main Motor
The main motor cannot be started up.
Where the motor does not start up even when the main motor startup key switch is
operated, and "Err 01" is displayed on the operation panel, it is considered that the
thermal relay for the main motor inside the electric box 2 was actuated.
Turn the machine power switch "OFF" and take safety measures such that the
unauthorized person is kept away from the machine, then contact our representative.
If "Err" is not displayed on the operation panel, the fuse may possibly be faulty.
【Technical Information 01 Fuse】
【Technical Information 02 Thermal Relay】
When the clutch key operation is performed just before the main motor
fails to start up, ensure that the clutch key is turned counterclockwise.
T.D.C Lamp Lights Up
If this lamp lights up, it is indicated that the maintenance of clutch related to the
intermediate plate stopper function that is the safety mechanism for the knife drive unit
has become necessary.
Turn the machine power switch OFF, and after taking safety measures such that the
unauthorized person is kept away from the machine, contact our service section or our
representative.

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
2
Display in Computer Unit
1 The backgauge present position is not displayed.
Where the present position is not displayed even when the START key is
depressed with power ON, display the backgauge manually. (Manual Backgauge
Display on page 13)
At this time, if the backgauge drive motor does not work, investigate the
backgauge drive. (See "The backgauge doesnot operate." on page 9)
2 "Err" is displayed.
Subsequent to "Err", 2-digit numerals are displayed.
This value indicates the error details.
Err No display Backgauge drive circuit error
（"The backgauge does not operate." on page 9）
Err 01 Main motor thermal relay actuated
【Technical Information 02 Thermal】
Err 03 Blower motor thermal relay actuated
【Technical Information 02 Thermal】
Err 04 Knife lifter motor thermal relay actuated
（Knife lifter option attaching machine）
Err 05 Loose knife supporting bolt, not mounted yet
（Excluding the knife lifter option attaching machine）
Loose safety bolt, rupture
【Technical Information 03 Safety Bolt Replacement】

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
3
Clamp
1 The clamp does not return, and the clamp returning speedis low.
・Check to see if the knife replacement lever is on the cutting side.
(Excluding the knife lifter option attaching machine)
・The clamp return timing becomes slow by the designated time on the page in
which the clamp timer (clamp up timing delay) was set.
・If the knife comes to a halt in the course of lowering and the clamp hold circuit
is actuated, the clamp will hold the position at that time. By pressing the knife
cutting buttons panel reset button or the main motor stop button, the error will
be reset.
・In other cases, the clamp mechanism unit fails. Apply oil to the clamp
mechanism.
The clamp is always being pulled upwards by the pull up spring.
Never approach the clamp work-space envelope in case of
sudden motion.
Where the faulty place is not known and no restoration is possible, turn the
machine power switch OFF, and after taking safety measures such that the
unauthorized person is kept away from the machine, contact our service section or
local service center.
2 The clamp does not lower when the clamp pedal is worked,and the speed is
low.
･Check to see if the main motor is started up.
･Check to see if the hydraulic oil level is proper.
･Check to see if the knife replacement lever is on the cutting side.（excluding
the knife lifter option attaching machine）
･Only when the numerical value indicating the present backgauge position is
displayed on the backgauge display unit of display panel, the clamp can be
operated. Press the START button.
･Check to see if the set value for soft clamp adjustment（Soft Clamp on page
13）is not too low.
･Ensure that the hydraulic controller power inside Box 1 is "ON".
･Apply oil to the clamp mechanism unit.
Apply oil to the clamp mechanism unit. Where the faulty place is not known and
no restoration is possible, turn the machine power switch OFF, and after taking
safety measures such that the unauthorized person is kept away from the machine,
contact our service section or localservice center.

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
4
3 The clamp pressure during cutting operation is abnormal.
・Adjust the clamp pressure adjust knob and clamp pressure level selector
switch. Where the set value on the operation panel is not obtained in the
specific course, check the pressure set value by "clamp pressure setting"
operation in the corresponding course. This pressure set value takes
precedence over that set by the pressure adjust knob.
＜Refer to "Clamp Pressure Setting" in the instruction manual＞
・Check the hydraulic oil amount and contamination. Changing hydraulic oil
once per year is recommendable. Shortly after the hydraulic oil was changed,
clamp operation may become unstable due to air mixed in the hydraulic circuit
when oil is extracted. In this case, with the main motor started approx. 10
minutes, store it, then carry out test cutting and ensure that the clamp is in
normal operation before starting operation.
Where the faulty place is not known and no restoration is possible, turn the
machine power switch OFF, and after taking safety measures such that the
unauthorized person is kept away from the machine, contact our service section
or local service center.
4 Pressure Setting Reference Data
Pressure sensitive paper 400kg Max.
Intermediate quality paper 2000kg
Wood free paper 2000kg
Coat paper 2000kg
Art paper 2000kg
Cellophane 3000kg
Glassine paper 3000kg
Board paper 3000kg
To control the changes in product precision after cutting due to the amount (height) of
a product cut once or the area of a product coming into contact with the clamp as much
as possible, there is a need to be always conscious of the optimum pressure.
When pressure sensitive paper is cut, it is possible to reduce coloring if a magnet
rubber (optionally available) is attached to the clamp rear surface. Also, there is a
method of cutting intermediate quality paper by placing wood free paper thereon.

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
5
Knife Drive
1 The knife and clamp do not work.
Knife operation is started up by pressing the Knife button. It is assumed that the
preparations for fetching the Knife button pressing signal are not made or the Knife
button pressing signal was fetched but the system failed in subsequent processing.
･If the numerical value indicating the present backgauge position is not
displayed on the backgauge display unit of the display panel, both clamp and
knife do not operate. Press the START button for backgauge display.
･When "Err 05" is displayed on the display panel, both clamp and knife do not
operate.
･Check to see if the knife supporting bolt (excluding the knife lifter option
attaching machine) is not loose.
･Visually check the safety bolt.
【Technical Information 03 Safety Bolt Replacement】
Do not insert your hand into the machine interior.
Where looseness or damage is found, adjustments or replacement by our
representative is required.
･Where the page and data now on the display in the semi-automatic and full-
automatic modes are in the proper protrusion/arrangement mode, the clamp and
knife do not operate.
･Ensure that the green LED of the unit (receiver and projection unit) on the
safety beam guard right side lights up. If it goes out, clean the right-side unit
(receiver) and left-side unit(projector).
Where the faulty place is not known and no restoration is possible, turn the
machine power switch OFF, and after taking safety measures such that the
unauthorized person is kept away from the machine, contact our representative.
2 The knife does not operate.
Where the clamp operates when the Cutting buttons was depressed without
working the clamp pedal but the knife does not operate, it follows that the knife
circuit fails, such as a defective fuse inside the clutch power unit. Check to see if
the operation mode at that time is semi-automatic or full-automatic, and the air
bleeding function is not set on the displayed page. In this air blow function, the
knife does not operate.
Stop machine operation, turn the machine power switch "OFF", and taking safety
measures such that the unauthorized person is kept away from the machine,
contactourrepresentative. 【Technical Information 01 Fuse】

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
6
3 The knife stops halfway.
The knife drive circuit started up by the Cutting buttons is held until one cycle is
completed, but this was interrupted for some cause. Except the causes
attributable to power supply, the safety circuit (Clamp Hold Circuit on page 13) for
holding the clamp in the as-is position is actuated.
Where the knife is present in the product when the knife stopped halfway for any
cause, move the knife up to the uppermost part once ("The knife is operated
manually." on page 12), and after checking the process, start operation after
restoration.
There is a possibility that the knife is stopping in the
position where the knife edge is lower than the clamp
lower surface due to sudden power cutoff. Give utmost
care to the knife edge.
Cause of halfway stop of knife
・Knife circuit cutoff due to power-OFF
Where the machine power is turned OFF when the knife started up by
pressing the Cutting buttons stopped halfway or where momentary power
interruption is considered to have occurred,it is necessary to examine the
power supply and other related parts. ("Power Supply" on page 1)
〈Procedure for operation re-start when the trouble was removed and the
power supply was restored〉
Where a product is present in the machine
（1）Press the STOP key on the operation panel.
（2）Return the knife up to the uppermost part with a spanner.
("The knife is operated manually" on page 12)
（3）Eliminate the product in the machine.
（4）After manual display of the backgauge ("Manual Backgauge
Display" on page 13), check the process to re-start operation.
Where no product is present in the machine
（1）Press the STOP key on the operation panel.
（2）Start the main motor and depress the clamp pedal.
（3）When the clamp has come into contact with the surface plate,
press the Cutting buttons to reset the knife to the uppermost part.
（4）After manual display of the backgauge ("Manual Backgauge Display"
on page 13), re-start operation work.
＜ ＞

TROUBLESHOOTING RC-100DX.RC-115DX.RC-137DX
7
・Insufficient holding time for cutting buttons ON-state (This is no failure.)
Maintain the ON-state for the cutting buttons until the machine finishes
cutting the product. If the cutting buttons is released halfway, the knife will
come to a halt.
At this time, the clamp hold circuit ("Clamp Hold Circuit" on page 12) is
actuated, and the clamp holds its position.
After resetting the knife to the uppermost part with the manual handle
("The knife is operated manually." on page 12), re-arrange the products
properly and re-start operation.
・Loose knife supporting bolt
By removing the knife supporting bolt, "Err 05" is displayed on the display
panel, and the knife circuit is interrupted.
However, for micro looseness, "Err" is not displayed. If the knife is started
up in this condition, "Err" may be detected momentarily during operation due
to machine vibration, etc., thereby stopping knife operation. (At this time,
the clamp hold circuit ("Clamp Hold Circuit" on page 13) is actuated.)
Check the knife supporting bolt and re-tighten it.
Where no product is present in the machine, reset the knife up to the
uppermost part with the Cutting buttons with the clamp pedal depressed.
Also, where a product is present in the machine, reset the knife to the
uppermost part with the manual handle ("The knife is operated manually." on
page 12) to re-arrange the products properly.
Check the process to re-start operation.
・Loose safety bolt
If looseness is present in the safety bolt, the limit switch will detect its
looseness, interrupting the knife circuit. At this time, "Err 05" is displayed
on the display panel, and the clamp hold circuit ("Clamp Hold Circuit" on
page 13) is actuated.
Open the knife height adjusting window to check the safety bolt visually.
If the safety bolt is broken, this replacement is required. After taking safety
measures such that the unauthorized person is kept away from the machine,
contact our representative.
【Technical Information 03 Safety Bolt Replacement】