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Methods
Method 1
While the keypad is showing the fault or alarm code, push
Switch ON the MFDI terminal set to H1-xx = 14 [MFDI Function Selection = Fault Reset].
Note:
The default setting for H1-04 [Terminal S4 Function Selection] is 14 [Fault Reset].
Method 2
1.
De-energize the drive main circuit power supply.
Note:
If you use an external 24 V power supply, also de-energize the control power supply.
2.
Energize the drive again after the keypad display goes out.
Method 3
Note:
If the drive receives a Run command from a communication option card or control circuit terminal, you cannot use fault reset method 1
and method 2. Remove the Run command then try to clear the fault. If you do a fault reset when the drive has a Run command, the
keypad will show minor fault CrST [Cannot Reset].
7
Periodic Inspection and Maintenance
This chapter gives information about how to examine and maintain drives in use, how to replace cooling fans and
other parts, and how to store drives.
◆
General Safety
DANGER
Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized drive. Before
servicing, disconnect all power to the equipment and wait for the time specified on the warning label at a minimum. The internal
capacitor stays charged after the drive is de-energized. The charge indicator LED extinguishes when the DC bus voltage
decreases below 50 Vdc. When all indicators are OFF, remove the covers before measuring for dangerous voltages to make
sure that the drive is safe. Failure to obey will cause death or serious injury.Electrical Shock Hazard. While the drive is ON,
never attempt to change any wiring, disconnect any option cards or connectors, or replace the cooling fan. Before performing
any repairs, shut OFF the power supply to the drive and verify that there is no residual voltage in the unit. Failure to do so may
result in serious electric shock.
WARNING
Electrical Shock Hazard. Do not operate equipment when covers are missing. Some figures in this section
include drives without covers or safety shields to more clearly show the inside of the drive. Replace covers and shields before
operation. Use drives only as specified by the instructions. Failure to obey can cause death or serious injury.Electrical Shock
Hazard. Always ground the motor-side grounding terminal. Contacting the motor case can cause death or serious injury from
incorrect equipment grounding.Electrical Shock Hazard. Only let authorized persons install, wire, maintain, examine, replace
parts, and repair the drive. Failure to obey can cause death or serious injury.Electrical Shock Hazard. Do not work on the drive
or around the drive while wearing loose clothing or jewelry. Tighten loose clothing and remove all metal objects such as watches
or rings. Failure to obey can cause death or serious injury.Fire Hazard. Tighten all terminal screws to the correct tightening
torque. Connections that are too loose or too tight can cause incorrect operation and damage to the drive. Incorrect connections
can also cause death or serious injury from fire.Fire Hazard. Do not use the main circuit power supply (Overcurrent Category III)
at incorrect voltages. Make sure that the drive rated voltage aligns with the power supply voltage before energizing the drive.
Failure to obey can cause death or serious injury.Fire Hazard. Do not put flammable or combustible materials on top of the drive
and do not install the drive near flammable or combustible materials. Attach the drive to metal or other noncombustible material.
Failure to obey can cause death or serious injury.
CAUTION
Burn Hazard. Do not touch a hot drive heatsink. De-energize the drive, wait 15 minutes minimum, and make
sure that the heatsink is cool to replace the cooling fans. Failure to obey can cause minor to moderate injury.
YASKAWA ELECTRIC SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
7 Periodic Inspection and Maintenance
Table 6.3 Fault Reset Methods
Description
on the keypad.
357
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