YASKAWA Varispeed-606PC3 Instruction Manual Page 221

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  • TROUBLESHOOTING
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220
Troubleshooting
Trouble Cause Corrective Actions
Communications
disabled with
DeviceNet master.
Communications cable is
incorrectly connected.
Check if the connector is incorrectly
connected or disconnected. Make
sure that the communications cable is
correctly connected.
Baud rate is incorrectly set. Set the baud rate to the same value
as that of the DeviceNet master, and
turn ON the power supply again.
MAC ID is already used by another
device.
Change the MAC ID so that it will not
be the same as that of any other
device, and turn ON the power supply
again.
Terminator is incorrectly
connected or not connected on the
communications line.
Check that the terminator is
connected correctly on the
communications line.
DeviceNet master does not
operate.
Check that the DeviceNet master is
always operating correctly.
Although DeviceNet
communications
established, the
Inverter does not run
when an operation is
started by the
DeviceNet master.
Incorrect operation method is
selected.
Selection of operation Run command
selection (n003) is not set to
DeviceNet communications.
Set Run command selection (n003) to
DeviceNet communications.
The motor does not
operate when an
external operation
signal is input.
The operation method selection is
wrong.
The run command (n003) is not set to
Control Circuit Terminal.
Set the run command (n003) to
Control Circuit Terminal.
A 3-wire sequence is in effect.
The multi-function input method
(n052) is set to 3-wire sequence, and
the S2 control terminal is not closed.
To use a 3-wire sequence, make the
wiring so that the S2 control terminal
is closed. To use a 2-wire sequence,
set the multi-function input (n052) to a
value other than 3-wire sequence.
The frequency reference is too low.
The input frequency reference is
lower than the setting for the
min.output frequency (n016).
Input a frequency reference greater
than the min. output frequency
(n016).
Local mode is in effect. Set the LO/RE selection of the digital
operator to RE.
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