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25

Troubleshooting

1. Load cell

If a load exceeding the rated value is imposed on the load cell, or a horizontal load is
imposed on it, it will be permanently distorted, and one or more of the symptoms listed
below will occur.

The digital load display will read "

". ---

This probably means that load cell is damaged and

should be replaced.

(

It displays "

", even when a small load is applied.

)

The displayed load value is extremely low. ---

The load cell may be distorted toward the negative.

The display seems unable to show values beyond a certain level. ---

The load cell may be distorted

toward the positive.

The display does not read zero, even when you press the reset button.

If the load cell is damaged, we will repair it, or we will replace it at cost shown in the table below. In this
case, we will also need you to send your measurement device in order to calibrate the two items at our
factory.

Load cell rating

Replacement and calibration fee

NOTE:

The units shown in curly

3kN{306kgf}

¥ 1 3 0 , 0 0 0 .-

brackets "

{ }

" are for reference purposes

30kN{3060kgf}

¥ 1 3 0 , 0 0 0 .-

only.

10kN{1020kgf}

¥ 1 3 0 , 0 0 0 .-

0.2kN{20kgf}

¥ 1 3 0 , 0 0 0 .-

100kN{10.2tf}

¥ 1 8 0 , 0 0 0 .-

200kN{20.4tf}

¥ 2 2 0 , 0 0 0 .-

2. Measurement device

The digital display doesn't work properly. ---

Some LEDs may be faulty.

You can find faulty LEDs during the ROM check procedure when turning ON the power. At that time the
device will light all the LED segments for checking.

If the contents of the EEPROM have been damaged by electrical noise, the display will show one of

the following displays while checking the ROM, depending on the cause.

a

Display:

The digital load display reads "

" or "

".

Problem:

The memory contents have been damaged.

Remedy :

Please send us the device as soon as possible. We will examine the memory and correct it.

b

Display:

The digital load display reads "

", the lower-limit display reads "

", and

all of the decimal points flash, then the character location marked "X" above will contain a
pair limit number from

to

.

Problem:

The upper or lower limit data for pair limit "X" may be wrong. These values may be

changed to "1000"

(

upper limit

)

or "500"

(

lower limit

)

, which are the default values

programmed into the microcomputer.

Remedy:

Enter the limit values again using the membrane switches. If you do not, the system cannot

operate properly.

c

Display:

The digital load display reads "

", the lower-limit display reads "

", and all

of the decimal points flash.

Problem:

Internal calibration data may be broken.

Remedy:

Please send us both the measurement device and the load cell. We will recalibrate and send

Содержание CHECK MAN CM-5

Страница 1: ...er 4 Make sure to read this manual before using this unit Then keep it in a safe location The specifications of the system may be changed without prior notice FUJI CONTROLS CO LTD 1 5 6 Iidabashi Chiy...

Страница 2: ...ns and performance of the system are not guaranteed and it may be dangerous WARNING Do not place any voltage across the output relay terminals If you do the machine will be damaged and the warranty wi...

Страница 3: ...lower limit settings and registration patterns And it also prevents accidents caused by an unauthorized changes in the preset values APPLICATIONS PRESS FITTING Motor gears and pulleys VTR parts CD par...

Страница 4: ...ent complete sensor Evaluation mechanism parts Load cell Others Back of the measurement device housing TABLE OF CONTENTS PAGE Name and function of each part on the measurement device housing 1 Operati...

Страница 5: ...e display will be updated The display will be refreshed either 12 5 times at 50 Hz or 15 times at 60 Hz per second However the system is constantly measuring the actual value with an analog circuit Si...

Страница 6: ...ccurately identify the peak load and measure the constantly changing load with precision regardless of the digital display operation Load upper limit digital display green LED characters This display...

Страница 7: ...If the digital load display shows any characters other than zeroes or dashes press this button If any letters are displayed a ROM error has occurred If this happens see the Troubleshooting section on...

Страница 8: ...is raised HI NG GO O NG One press operation cycle is complete Comparisons and results To make comparisons and present the results both a Reset signal and a Load measurement complete signal are requir...

Страница 9: ...circuit to an open ON to OFF as a timing signal you should make sure that the terminals are shorted and then opened after the measurement is complete When a reset signal is input the contacts for the...

Страница 10: ...tart of The part begins co mple te Pr ess ing The pre ss ram is raised cycle is reset signal C M starting a cycle up to the completion of a cycle ON OFF ON OFF complete measurement signal Press load c...

Страница 11: ...er starting the cycle until the cycle is complete Since the system regards the change from an open to a short circuit OFF to ON as a valid signal make sure that the signal does not drop prematurely Ei...

Страница 12: ...anual reset button is pressed Upper limit value Measured load value Contact rating 120 VAC 0 5A 28 VDC 1A resistance load GO signal output terminals a type contact continuous signal When the evaluatio...

Страница 13: ...he reset signal is input Make sure it is ON before the reset signal is input operating time The load will stop being read when the load measurement complete signal is input There may be a delay in the...

Страница 14: ...measurement device The contact should be designed so that the start signal level will not drop even if the operator presses the push button twice in one cycle Make sure to connect a noise suppressing...

Страница 15: ...for caulking Shown on the left is an example for checking a caulking load using the timer b contacts from the press timer for press fitting operations Please make sure to design the circuit so that t...

Страница 16: ...am shank designed for the load cell Tighten the two bolts evenly while being careful to align each side perfectly parallel 3 CM 5 measurement device installation There are two holes on the bottom of t...

Страница 17: ...g The Digital load display displays numbers and letters When it displays four digits a decimal point will flash next to the digit which can be specified at that time On the following pages the use of...

Страница 18: ...Call up the data name that you want to specify data for and then enter or change the settings See pages 20 and 23 Then turn to the Change and select each set value selection from the following pages...

Страница 19: ...isplay This mode prohibits any changes in the settings The decimal point next to the 100 digit will flash 3 Press the key Now you can measure loads Digital load display Upper limit display Lower limit...

Страница 20: ...the following order When or is displayed the respective upper or lower value for that pair will be displayed in the digital load display To change the upper and lower values of a pair or to change whi...

Страница 21: ...hange which pair is selected press the key The pair number will change in the following order Select the pair that you want to change 2 Press the key The display will change to show the upper limit Di...

Страница 22: ...ng the key Then enter the correct number by using the key If you want to change the lower limit value go to step 8 If you don t need to change the lower limit value press the key Then the change will...

Страница 23: ...he procedure above changes the upper and lower limits for pair 1 By referring to this set of steps you can change the upper and lower values for each pair to meet your actual work requirements NOTE Th...

Страница 24: ...eys in that order again Once a limit pair number has been selected the upper and lower values stored in that pair will be displayed Setting the power supply frequency If your power company supplies 50...

Страница 25: ...al load display will alternate between and If you are using the system in an area with 60 Hz power select 5 Press the key That completes the power frequency setting Now the system is ready to make mea...

Страница 26: ...shock when workpieces hit each other select this mode The system samples and displays the load constantly If the load decreases to zero while making a measurement the display will also show zero After...

Страница 27: ...it display means that the end measurement mode is selected 5 Press the key That completes the measurement mode change If the digital load display shows only dashed lines press the reset push button 6...

Страница 28: ...the reset signal the system may malfunction by chattering and the voltage may drop a lot If this happens arrange to open the reset signal contacts after each cycle is complete The load cell operates a...

Страница 29: ...easurement device The digital display doesn t work properly Some LEDs may be faulty You can find faulty LEDs during the ROM check procedure when turning ON the power At that time the device will light...

Страница 30: ...the cable connected properly to the 5 pin metal connector on the tip of the load cell Is a reset signal input after a workpiece is evaluated The display does not continue to show a Is the load measure...

Страница 31: ...27...

Страница 32: ...he tapped holes on the bottom do not insert screws that go deeper than 10 mm inside the housing cut the panel using the dimensions given below The numbers in parenthese are for MEASUREMENT DEVICE DIME...

Страница 33: ...The units shown in curly brakets are for refence purposes only Shield Input Output Output Input Load surface M6 through hole Load surface Load surface cable 2 meters Load surface through hole cable 2...

Страница 34: ...device 4 To terminal of terminal block on the back of the measurement device 2 If you want to use an emergency stop push button connect it to terminals 1 and 2 Normally SV 2 is not used It is used fo...

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