Internal Current Control; References; Local (Hand) And Remote (Auto) Control - GE AF-650 GP Design And Installation Manual

Application Set-Up Examples

6.3.4 Internal Current Control

When the motor current/torque exceed the torque limits
set in parameter F-40 Torque Limiter (Driving),
parameter F-41 Torque Limiter (Braking) and
parameter F-43 Current Limit, the integral current limit
control is activated.
When the frequency converter is at the current limit during
motor operation or regenerative operation, it tries to get
below the preset torque limits as quickly as possible
without losing control of the motor.

6.4 References

6.4.1 Local (Hand) and Remote (Auto)
Control
The frequency converter can be operated manually via the
keypad or remotely via analog and digital inputs and serial
bus. If allowed in parameter K-40 [Hand] Button on Keypad,
parameter K-41 [Off] Button on Keypad,
parameter K-42 [Auto] Button on Keypad, and
parameter K-43 [Reset] Button on Keypad, it is possible to
start and stop the frequency converter via the keypad
pressing [Hand] and [Off]. Alarms can be reset via [Reset].
After pressing [Hand], the frequency converter goes into
Hand mode and follows (as default) the local reference
that can be set using the navigation keys on the keypad.
After pressing [Auto], the frequency converter enters Auto
mode and follows (as default) the remote reference. In this
mode, it is possible to control the frequency converter via
the digital inputs and various serial interfaces (RS485, USB,
or an optional network). See more about starting,
stopping, changing ramps and parameter set-ups and so
on, in parameter group E-0# or parameter group O-5#.
Illustration 6.8 Operation Keys
MG35M402
AF-650 GP™ Design and Installation Guide
Active reference and configuration mode
The active reference can be either the local reference or
the remote reference.
In parameter F-02 Operation Method, the local reference can
be permanently selected by selecting [2] Local.
To permanently select the remote reference, select [1]
Remote. By selecting [0] Linked to Hand/Auto (default), the
reference site depends on which mode is active. (Hand
mode or Auto mode).
Illustration 6.9 Active Reference
Illustration 6.10 Configuration Mode
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