Baldor MIN1853 manual AR unloaded + 12.987 x log + log 155 Tm * Jr, Value Range

Configure Motor Adjustments for Current, Waveform, Rest, Idle, Inductance, and Anti–Resonance can be made while the motor is energized and moving or at rest.

Configuring Motor Type [ MT11 ]

EDIT > SETUP > MOTOR > TYPE > STEPER

Configuring Motor Current [ MIn ]

–↑STEPPER SETUP↓ –

CURRENT A–RES INDUCT

Press F1 (CURRENT)

EDIT > SETUP > MOTOR > TYPE > STEPER > CURRENT

Value: 2.0 Amps

Range: 0.0 – 8.0 Amps

Note: This parameter sets the motor current for your stepper motor. Entering a value outside the “Range” will reset the motor current to 0.0 Amps.

Configuring Anti–Resonance [ ARi ]

Axis One Motor Curnt

2.0 Amps

Enter Amps, press ENTER

EDIT > SETUP > MOTOR > TYPE > STEPER > A–RES

Value: 7

Range: 0–30

This parameter sets the anti–resonance gain level for your motor. For example, entering AR14 sets the anti–resonance gain to 14.

Calculate AR

AR = ARunloaded – K

– Axis One Anti–Res – 7

Enter value, press ENTER

Where:

				￿	JRotor)JLoad	￿
9.3					JRotor
ARunloaded + (12.987) x log￿			￿	K + log
	Vb ￿				0.155
		(Tm * Jr)

Vb = Break Velocity of Knee of Speed–Torque Curve in RPS

Tm = Low Speed Torque of Motor in Nm

Jr = Unloaded Rotor Inertia in Kg–m2

Hint: The AR value will decrease as the J load increases. To observe this, reduce the AR value until the motor begins to hiss – then increasing your AR setting slightly.

Note: ARunloaded will be different for series and parallel motors, because the speed–torque curve is a component of Break Velocity and Low Speed Motor Torque.

5-2 Setup MN1853