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Chapter 12 Troubleshoot and maintenance
12-3
Cx2000 AC Drive
Internal loop and external fault terminal of inverter
Fault display Protective function
Description
Parameter save
Abnormity
It occurs when the parameters changed by user fail to be saved
in the internal inverter and the power is applied.
Hardware
Abnormity
It occurs when the software is abnormal. If the faults can not be
cleared by STOP/RESET key or reset terminal on the panel. The
input power supply of the inverter is cut off and the power is
not applied again until the panel power disappears completely.
Panel communicati
on abnormity
When the communication between inverter and panel are
abnormal, If the faults can not be cleared by STOP/RESET key
or reset terminal on the panel. The input power supply of the
inverter is cut off and the power is not applied until the panel
power disappears completely.
Panel abnormity
It occurs when the inverter panel is abnormal, which lasts a certa
in of time.
Cool fan abnormity
It occurs when the cool fan of the inverter is abnormal. The cool
fan can run consecutively or stop (refer to page 8-28).
Emergency stop
When the emergency stop (EST) terminal closes, the inverter out
put is turned off.
Caution:
In case that the operation command signal (FX or RX) of the
terminal closes, it can run again through shutoff of EST
terminal.
Contract A
Fault signal
As for the function (117-121) of the multi-function output terminal
of group I/O, when the terminal set with 18 (external fault signal
input: contact A) closes, the inverter output is turned off.
Contract B
Fault signal
As for the function (117-121) of the multi-function output terminal
of group I/O, when the terminal set with 19 (external fault signal
input: contact B) closes, the inverter output is turned off.
Frequency
command loss
As for the abnormity of the frequency command, when the inverte
r runs through analog input (0
~
10V or 0
~
20V) or RS-485 comm
unications, the signals can not be input, while, the operation meth
od set is chosen according to operation method when the speed
command is lost.
NTC disconnection The output is turned off when NTC is disconnected.
Summary of Contents for C*2000 Series
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