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Byte
Bit
Specifications
1
2
Run/Stop
1
3
Coast to Stop (ST off)
1
4
Emergency Off
Ready for Operation
1
5
ST = On
1
6
Ready for Operation
1
7
(Reserved)
1 – Ready for Operation: Initialization completed – Not a stop due to: a failure, alarm, Main Undervolt-
age, a forced stop due to F013, or a forced stop due to a momentary power failure.
F851: ASD Operation at Disconnect — This parameter allows selection of one of six possible
responses to a communications loss.
Stop and Terminate Communication — The ASD decelerates the motor to a stop and dis-
0.
plays an alarm (the leftmost LED on the LED display flashes
network are canceled, and the commands set with parameters F003 and F004 become effective.
When communication is restored, the
Do Nothing — The ASD remains in the current state until the operation is completed. The ASD
1.
displays the
restored.
Deceleration Stop — The ASD decelerates the motor to a stop and displays the
2.
work commands will be processed once communications have been restored.
3.
Coast Stop — The ASD issues a command for a frequency of 0 Hz and displays the
work commands will be processed once communications have been restored.
Emergency Off — The error message "err8" is displayed. Commands entered through the net-
4.
work are not canceled. When communications are restored, the ASD must be reset to in order to
clear the error message and resume normal operation.
5.
Preset Speed — The ASD uses the Preset Speed selection referenced in F852. Refer to Preset
Speed Operation Selection. Network commands will be processed once communications have been
restored.
F852: Preset Speed Operation Selection — If ASD Operation at Disconnect (F851) is set to Preset
Speed, the ASD will run at a preset speed display). Network commands will be processed once
communications have been restored.
Example:
•
F851 = Preset Speed
•
F852 = 8 (Preset Speed #8)
•
F287 (Preset Speed 8) = 10 (Hz)
The ASD operational response will be:
•
Under normal conditions the drive will operate according to commands entered through the
network.
•
If network communications are disrupted, the ASD reverts to the preset frequency of 10 Hz.
•
When communications is restored the drive resumes processing network commands.
14
0
Stop
ST = On
No Emergency
Off
Getting Ready for
Operation
Getting Ready for
Operation
-
T
alarm. Network commands will be processed once communications have been
1
Run
ST = Off
Emergency Off
Ready for
Operation
Ready for
1
Operation
-
T
T
alarm is turned off.
DeviceNet Module Installation and Operation Manual
Supplement
-
-
-
ST = On, Run = On,
1
Ready for Operation
-
-
). Commands entered through the
T
alarm. Net-
T
alarm. Net-
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