Vacon 20, Complete User'S Manual

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vacon parameter descriptions
9
9.2 Start / stop setup (Control panel: Menu PAR -> P2)
2.1 R
EMOTE CONTROL PLACE SELECTION
With this parameter, the user can select the active control place, frequency
converter can be selected with P3.3/P3.12. The selections are:
0 = I / O termina
1 = Fieldbus
2 = Keypad
Note: You can select control place by pressing Loc / Rem button or with par.
2.5(Local / Remote), P2.1 will have no effect in local mode.
Local = Keyp ad is the control place
Remote = Control place determined by P2.1
2.2 S
TART FUNCTION
The user can select two start functions for Vacon 20 with this parameter:
0 = Ramp start
The frequency converter starts from 0 Hz and accelerates to the set
frequency reference within the set acceleration time (See detailed de-
scription: ID103). (Load inertia, torque or starting friction may cause
prolonged acceleration times).
1 = Flying start
The frequency converter is able to start into a running motor by apply-
ing small current pulses to motor and searching for the frequency cor-
responding to the speed the motor is running at. Searching starts from
the maximum frequency towards the actual frequency until the cor-
rect value is detected. Thereafter, the output frequency will be in-
creased/decreased to the set reference value according to the set
acceleration/deceleration parameters.
Use this mode if the motor is coasting when the start command is giv-
en. With the flying start it is possible to start the motor from actual
speed without forcing the speed to zero before ramping to reference.
2.3 S
TOP FUNCTION
Two stop functions can be selected in this application:
0 = Coasting
The motor coasts to a halt without control from the frequency convert-
er after the Stop command.
1 = Ramping