GE Fanuc IC800SLCIZ030 Interface Cable

FAULT CONDITIONS — In the event of a shortedload, shorted winding, or stalled motor, the load current will attempt to increase.

As described above, the drive current to the output stage is diverted (limiting the load current to about1 A), causing the output stage to go linear. As the junction

temperature of the output stage increases, the thermal limit circuit will become operational, further decreasing the drivecurrent.

The load current (junction temperature) is then a function of ambient temperature, state of remaining drivers,supply voltage, and load resistance.

If the fault condition is corrected, the output driver will return to its normal saturated condition. 

Short circuit protection is provided for each output for supply voltages up to 25 V.

Any program can start and stop any other program, and all programs can utilize common motion blocks. 

Engineering time is reduced and integration is simplified due to configuration and programming wizards for the controller software.

The controller has a simple diagnostic system that is displayed on a 2-character LED on the front panel. 

INDUCTIVE LOAD DRIVER — Bifilar (unipolar) stepper motors can be driven directly. 

The internal kickback diodes prevent damage to the output transistors by suppressing the high-voltage spikes which occur when

turning OFF an inductive load.

Enable Input

The Enable discrete input allows the host controller to enable or disable the power output

stage of the controller and reset faults. The Enable input must be active to run the servo

motor. This Enable hardware input works in tandem with a logical (software) enable register

called the Power Output Stage Enable (POE) register. The POE register will allow current to

flow into the motor only when set true and no faults are present on the controller. Since a

Lost Enable (LE) fault is generated when this hardware enable input is false, ensure that

POE=1. the hardware enable input is true, and all faults have been cleared (RSF register) to

activate the power stage of the controller.

The current state of the Enable input can be queried using the Fault Code (FC) register in

the terminal window. The Enable input should be connected as shown in the connection

diagrams in Section 3.6.10. The internal schematic for the enable input circuit is shown below.

Analog Output (AO)

The hardware analog output is primarily used as a process input to the controller programs,

but it can also be used a diagnostic output for various signals used in the tuning and

debugging process. The Analog Common pin is used for the signal return. The Analog

Output (AO) software parameter allows you to configure this output to represent one of the

following signals:

• Actual velocity (AO = VLA)

• Actual output current (AO = CMD)

• Following error (AO = FE)

The output can also be forced to a specific voltage value by setting the AO parameter to the

desired voltage from a program, PC terminal emulator, or Motion Developer terminal

window. The analog Output value can be queried in the terminal window using the “?” command.

Use 20-28 AWG twisted-pair wire with an overall shield for this signal interface. For best

noise immunity connect the shield to the Analog Common pin on the Auxiliary I/O connector.

The internal schematic for the analog output circuit is shown below.

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