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Toshiba TOSVERT VF-PS1 Series Function Manual page 11

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3.2.
: Communication Loss Action Time Setting
f832
Set the communication loss action time to f832. The network loss action function starts
from receiving the properly frame message. The action of the network communication
loss is set by f851.
3.3.
: Communication Loss Action Setting
f851
This parameter sets up the
Metasys
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 3.4.
3.4.
: Preset speed operation selection
f852
If the communication loss action (parameter f851) is set to 5 (preset speed command), the
VF-PS1
communication loss (with  alarm). Commands entered through the network are not canceled.
For example,
If the inverter is set as described below,
f851
f852
f287
Operation is carried out as follows.
Network
Normal conditions ...........Operates according to commands entered through the network.
communications loss ......Operates at 10Hz.
Restoration......................Operates according to commands entered through the network.
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
VF-PS1
®
N2 network.
will run at a preset speed as set up by this parameter in the case of a
= 5 (preset speed operation command)
= 8 (preset speed operation frequency 8)
(preset speed operation frequency 8) = 10 (10Hz)
Operation of the
response to a loss of communications with the
VF-PS1
- 10 -
E6581540

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Metasys n2 mts001z