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AC LINE

CONDITIONER

120VAC IN

Chassis Ground

IM483 #1

IM483 #2

P2:4 - +V

P2:3 - GND

P2:4 - +V

NOTE THE FOLLOWING:

1] The use of shielded twisted pair cabling.

2] Wiring run to each drive separately.

3] AC Line Conditioning used to limit line

spikes and surges.

INTELLIGENT MOTION SYSTEMS, INC.

48v48v 75v75v

PS0020 REV D

ISP200

P2:1

Figure 7.1: IM483 Motor Power Connection

Configuring and Controlling the Output Current

For any given motor, the output current used for microstepping is determined

differently from that of a half/full step driver.

In the IM483, a sine/cosine output function is used in rotating the motor.

Therefore, when microstepping, the specified phase current of the motor is

considered an RMS value.

The output current is set by means of a current adjustment resistor placed

between P2:2 (Current Adjust) and P2:3 (Power Ground). See the next

subsection titled “Setting the Output Current” for connection instructions and

resistor values.

The IM483 also has an automatic current reduction feature, which allows the

user to reduce the current in the motor windings to the level required to

maintain holding torque, thus allowing for cooler motor operation and greater

system power effeciency. This feature is controlled by means of a resistor

connected between P2:1 (Reduction Adjust) and P2:2 (Current Adjust). The

subsection; “Reducing the Output Current” contains reduction adjustment resistor

calculations and connection instructions.

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Projecta IM2000 Istruzioni per gli Interventi Pagina 36