E6581295⑥
5.1. f851: Communication Loss Action Setting (Network breaks)
This parameter sets up the
0:Stop and Communication release
The inverter decelerates the motor to a stop and gives an alarm (the leftmost LED flashes). Commands entered through the network are canceled, and the commands set with parameters cmod and fmod become effective.
When communications are restored, the alarm is turned off.
1:None
The inverter remains in the state where it was when the problem arose, and it gives an alarm.
2:Deceleration stop
The inverter decelerates the motor to a stop and gives an alarm. Commands entered through the network are not canceled.
3:Coast stop
The inverter issues a command for a frequency of 0Hz and gives an alarm. Commands entered through the network are not canceled.
4:Emergency stop
The error message err8 is displayed. Commands entered through the network are not canceled.
When communications are restored, the inverter is not restored to working order and the error message err8 does not disappear until the inverter is reset.
5:Preset speed operation command Refer to Section 5.2
5.2.f852: Preset speed operation selection
If the communication loss action (parameter f851) is set to 5 (preset speed command), the
For example,
If the inverter is set as described below, f851 = 5 (preset speed operation command) f852 = 8 (preset speed operation frequency 8)
f287 (preset speed operation frequency 8) = 10 (10Hz)
Operation is carried out as follows.
Network | Operation of the |
Normal conditions | Operates according to commands entered through the network. |
↓ | ↓ |
communications loss | Operates at 10Hz. |
↓ | ↓ |
Restoration | Operates according to commands entered through the network. |
- 14 -
