ITOH DENKI CBV30 - Troubleshooting

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8. Maintenance/Inspection
Safety precautions
Advance preparation
Check ProductInstallation/Wiring
Maintenance/Inspection
Specifications Control/Operation
CBV30UserManual
Troubleshooting
8-3.
Troubleshooting
Follow the procedures below without removing plastic cover or modifying the
driver card, in case any problem happens.
■
（Symptom 1）
MDR does not run.
• Check if only PWR(green LED) illuminates.
• Check if 24VDC stable voltage is adequately supplied from the power supply.
• Check if the wiring of 24VDC and 0VDC cable is correctly.
• Check if 24VDC and 0VDC cable is certainly inserted to a connector.
• Check if the signal is input to CN2#1.
• Check if the input signal type to CN2#1 is correct. (NPN: 0V, PNP: 24V)
• Check if there is no failure in wiring or no looseness at connectors.
⇒ Check the wire size and wirings.
• Check if 0V of control power and RUN signal power are common.
• Check if ERR(red LED) is illuminating or blinking.
⇒ If this is the case, see section 8 and remove the cause of error.
• Check if the MDR is adequately installed and its shafts are adequately fixed with the supplied
mounting brackets or accessories.
• Check if the MDR end housing is NOT contacting conveyor frame.
• Check if the MDR's connector is properly inserted to the driver card.
• Check if the belt tension is not too strong.
Check if the number of slaved idler rollers is adequate.
（Symptom 2）
Speed variation is not achieved,
or speed is slower than expected.
MDR
• Check if the nominal speed of MDR is selected correctly.
⇒ The adjustable speed range is depending on nominal speed.
SW2
• Check if the speed setting on driver card is set correctly. ⇒ Refer to page 18.
• Check if DIP-SW1#1 is changed when MDR stops.
Direction change by DIP-SW1#1 while MDR running is prohibited.
Stop the operation and change the direction by DIP-SW1#1, or change the direction be CN2#2.
SW1#1
（ Symptom 4）
STATUS signal is not
discharged.
Voltage
• Error is occurred. Refer to
"Section 8-1 Error details".
• Check if the external voltage is 24VDC or less and its 0V is common with the 0V input to CN1#2.
• Check if the resistor larger than 1kΩ is mounted.
(Depending on your device.)
• Check if the wiring is adequately done.
• Is wiring for NPN or PNP signal output correctly done. (Refer to page18)
CN2#3
（ Symptom 5）
Error LED is illuminated or
blinked.
Environment
• Is an appropriate power supply with enough capacity used.
⇒ Refer to 24V DC power supply on page 13.
• Check if the wire size of the power supply is appropriate .
• Check if there is no failure in wiring or no looseness at connectors.
⇒ Check the wire size and wirings.
• Check if CBV30 is too far from the power supply. (Check if the voltage is dropped.)
• Check if the product is used in the ambient temperature range between 0 and 40 degree.
• Check if the driver card back plate is affixed to the metal plate face for better heat dissipation.
• Check if motor lock occurs in case that a stopper is used to stop transferred products.
• Check if the MDR end housing is contacting the conveyor frame.
• Check if the MDR's connector is properly inserted to the driver card.
• Check if the power cable is damaged.
Power
Source
ERR（Red）
MDR
（ Symptom 3）
Reversing is not achieved.
CW/CCW
• Check if the signal of CN2#2 is switched correctly.
• Check if the input signal type to CN2#1 is correct. (NPN: 0V, PNP: 24V)
• Check if there is no failure in wiring or no looseness at connectors.
⇒ Check the wire size and wirings.
Power
RUN signal
Error
MDR