6-162
6.7.6 Protection operation
6.7.6.1 Light alarm and heavy alarm
Light alarm or heavy alarm is generated in the CC-Link card, depending on an error level. Occurrence of
such an error makes the inverter generate
er4
"Network error" alarm, resulting in coast to stop or
deceleration to stop.
Table 6.7.9 Light Alarm and Heavy Alarm
Item
Light alarm
(operation in case of CC-Link error)
Heavy alarm (in case of option error)
Cause of the error
・Master down, wire break detection
・Communication data error (Noise applied to
communications line, etc.)
・Option card hardware error
・Defective installation of option card
Reset method Note 2
Perform resetting after removal of alarm cause
(automatic release after returning to communications).
Note 1:
After the inverter power is turned OFF, remove
the alarm cause, and then turn ON the inverter
power.
Alarm output control
・ Only in CC-Link operation mode (refer to "6.7.13
Link Function"), error is detected
・ Function code o30 or o31 is available to control the
alarm output method when an error is detected.
Function code o30 or o31 is available to control
the alarm output method when an error is
detected.
Communications error
code
Note 5
2 3
Table 6.7.10 Operation in Case of Light Alarm (CC-Link Error)
When an error occurs in
communications line
Communication error remains after the time
specified by o31
When communications error is removed
o30
setting
Operation
status
Display
Alarm relay
output
Operation
status
Display
Alarm relay
output
Operation
status
Display
Alarm relay
output
0
Operation
continues
Normal
display
Not output Coast to a stop
Immediately
er4
lights
Output
Stop status
continues
er4
continues
Output
continues
1
Operation
continues
Normal
display
Not output
Decelerate to
stop
Note 3
After stop
er4
lights
After stop
output
Stop status
continues
er4
continues
Output
continues
2
Operation
continues
Normal
display
Not output
Decelerate to
stop
Note 3, Note 4
After stop
er4
lights
Not output
Restart
Note 3
Normal
display
Not output
3
Operation
continues
Normal
display
Not output
Table 6.7.11 Operation in Case of Heavy Alarm (Option Error)
When an option error occurs
Communication error remains after the
time specified by o31
When the option error is removed
o30
setting
Operation
status
Display
Alarm relay
output
Operation
status
Display
Alarm relay
output
Operation
status
Display
Alarm relay
output
0 Coast to a stop
Immediately
er4
lights
Immediate
output
Stop status
continues
er4
continues
Output
continues
1
Decelerate to
stop
Note 3
After stop
er4
lights
After stop
output
Stop status
continues
er4
continues
Output
continues
2
Decelerate to
stop
Note 3
After stop
er4
lights
After stop
output
Stop status
continues
er4
continues
Output
continues
3
Decelerate to
stop
Note 3
After stop
er4
lights
After stop
output
Stop status
continues
er4
continues
Output
continues
Note 1: "Perform resetting" means reset input by one of the following methods.
* Entry by _ key on the keypad
* Error reset [RST] is assigned by selecting X function to set the applicable X terminal to ON (assigned to X8 by factory
default).
* Entry of reset command from communications
To Next Page
Loading...
