Speed Control Mode; Torque Control Mode; Frequency Control Mode; Special Control Modes - ABB ACS560 Firmware Manual

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Speed control mode

The motor follows a speed reference given to the drive. This mode can be used either
with estimated speed used as feedback.
Speed control mode is available in both local and external control. It is supported in
vector motor control only.
Speed control uses speed reference chain. You can select speed reference using
parameters in group
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Torque control mode

Motor torque follows a torque reference given to the drive. Torque control mode is
available in both local and external control. It is supported in vector motor control
only.
Torque control uses torque reference chain. Select torque reference with parameters
in group 26 Torque reference chain
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Frequency control mode

The motor follows a frequency reference given to the drive. Frequency control is
available in both local and external control. It is supported in scalar motor control only.
Frequency control uses frequency reference chain. You can select frequency
reference using parameters in group
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Special control modes

In addition to the above-mentioned control modes, the following special control
modes are available:
• Process PID control. For more information, see section
50).
• Emergency stop modes OFF1 and OFF3: Drive stops along the defined
deceleration ramp and drive modulation stops.
• Jogging mode: Drive starts and accelerates to the defined speed when the
jogging signal is activated. For more information, see section
• Pre-magnetization: DC magnetization of the motor before start. For more
information, see section
• DC hold: Locking the rotor at (near) zero speed in the middle of normal operation.
For more information, see section
• Pre-heating (motor heating): Keeping the motor warm when the drive is stopped.
For more information, see section

Drive configuration and programming

The drive control program performs the main control functions, including speed,
torque and frequency control, drive logic (start/stop), I/O, feedback, communication
22 Speed reference selection
on page 235.
28 Frequency reference chain
Pre-magnetization
DC hold
Pre-heating (Motor heating)
Program features 39
on page 217.
Process PID control
Jogging
(page 70).
(page 70).
on page 240.
(page
(page 73).
(page 71).