Vacon 100 Industrial Applications Manual page 215

PARAMETER DESCRIPTIONS
NOTE!
Ramp stop cannot be guarenteed in all situations. If ramp stop is selected and the
net voltage changes over 20%, the voltage estimation fails. In such case, ramp stop
is not possible.
P3.2.6 I/O A START/STOP LOGIC (ID 300)
Use this parameter to control the start and stop of the drive with the digital signals.
The selections can include the word 'edge' to help you prevent an accidental start.
An accidental start can occur, for example, in these conditions
When you connect the power.
•
When the power is connected again after a power cut.
•
After you reset a fault.
•
After Run Enable stops the drive.
•
When you change the control place to I/O control.
•
Before you can start the motor, you must open the Start/Stop contact.
In all the examples of the next pages, the stop mode is coasting. CS = Control signal.
EQ
Control
V
IN 1
Place
CTRLPLACE
1
IN 2
I/O A
V Start Allowed
P I/O A (/B)Logic
IO
Ctrl Signal 1 A(/B)
Ctrl Signal 2 A(/B)
IO
IO Ctrl Signal 3 A(/B)
KP StartButton
KeypadStopButton:
NO=FALSE
YES=TRUE
P KeypadStopButton
0 FALSE
KP StopButton
Fig. 27: The block diagram of the I/O A Start/stop logic
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
AND
IN 1
IO_StartFunction
IN 2
Enable
StartStopLogic
Signal 1
Signal 2
Signal 3
ButtonStart
ForceStop
Trig Panel
V
SEL
Info
G
IN 0
IN 1
Start
V
I/O Ctrl A(/B) Start
Reverse
I/O Ctrl A(/B)
V
Reverse
ForceStopActive
V
Trig Panel Info
Info Message
Drive has been forced to stop
state from keypad
Drive can be restarted by
pressing start button on
keypad, as long as the Run
signal is kept continuously
active from the original source
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