Note:
• Jogging is not available when the drive is in local control.
• Jogging cannot be enabled when the drive start command is on, or the drive started
when jogging is enabled. Starting the drive after the jog enable switches off requires
a fresh start command.
WARNING!
If jogging is enabled and activated while the start command is on, jogging will
activate as soon as the start command switches off.
• If both jogging functions are activated, the one that was activated first has priority.
• Jogging uses the speed control mode.
•
Ramp shape times (parameters 23.16…23.19) do not apply to jogging
acceleration/deceleration ramps.
•
The inching functions activated through fieldbus (see parameter 6.1, bits 8…9) use
the references and ramp times defined for jogging, but do not require the jog enable
signal.
Settings and diagnostics
Parameters: 20.25 Jogging enable (page 249), 20.26 Jogging 1 start source (page 249),
20.27 Jogging 2 start source (page 250), 22.42 Jogging 1 ref (page 266), 22.43 Jogging
2 ref (page 267), 23.20 Acc time jogging (page 274) and 23.21 Dec time jogging (page 274).
￭ Scalar motor control
It is possible to select scalar control as the motor control method instead of DTC (Direct
Torque Control). In scalar control mode, the drive is controlled with a speed or frequency
reference. However, the outstanding performance of DTC is not achieved in scalar
control.
It is recommended to activate scalar motor control mode
• if the nominal current of the motor is less than 1/6 of the nominal output current of
the drive
• if the drive is used without a motor connected (for example, for test purposes)
• if the drive runs a medium-voltage motor through a step-up transformer, or
• in multimotor drives, if
• the load is not equally shared between the motors,
• the motors are of different sizes, or
• the motors are going to be changed after motor identification (ID run)
Program features 63
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