Parameter Reference
D-81
AC30V series Variable Speed Drive
Slew Rate
Parameters::Motor Control::Slew Rate
This function prevents over-current and over-voltage faults occurring due to a rapidly changing setpoint.
PNO Parameter Descriptions
Slew Rate Enable
Enable/Disable slew rate limit
Slew Rate Accel Limit
Maximum rate at which the setpoint can be changed away from zero
Slew Rate Decel Limit
Maximum rate at which the setpoint can be changed towards zero
Functional Description
The
Slew Rate
limit obtains the setpoint from the output of the application, correctly scaled by the
Reference
feature. The rate of change limits
are applied and the setpoint is then passed on for further processing.
When the braking feature determines that the internal dc link voltage is too high it issues a Hold signal. This causes the
Slew Rate
limit function
to hold the setpoint at its current value. This typically lasts for only 1ms, time for the excess energy to be dumped into the dynamic braking
resistor.
Summary of Contents for AC30V Series
Page 34: ...Installation 4 16 AC30V series Variable Speed Drive Basic Speed Control Wiring...
Page 35: ...4 17 Installation AC30V series Variable Speed Drive APPLICATION 1 AUTO MANUAL CONTROL...
Page 36: ...Installation 4 18 AC30V series Variable Speed Drive Auto Manual Control Wiring...
Page 37: ...4 19 Installation AC30V series Variable Speed Drive APPLICATION 2 RAISE LOWER TRIM...
Page 38: ...Installation 4 20 AC30V series Variable Speed Drive Raise Lower Trim Wiring...
Page 39: ...4 21 Installation AC30V series Variable Speed Drive APPLICATION 3 PRESETS SPEEDS...
Page 40: ...Installation 4 22 AC30V series Variable Speed Drive Presets Speeds Wiring...
Page 41: ...4 23 Installation AC30V series Variable Speed Drive APPLICATION 4 PID CONTROL...
Page 42: ...Installation 4 24 AC30V series Variable Speed Drive PID Control Wiring...
Page 162: ...Sequencing Logic B 2 AC30V series Variable Speed Drive SEQUENCING DIAGRAM...
Page 325: ...E 2 E Plan Library AC30V series Variable Speed Drive Which then brings up the E Plan page...