GS-D500A View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

GS-D500A

100V/5A STEP AND MICROSTEP DRIVE BOARD FOR STEPPER MOTORS

STMicroelectronics 

GS-D500A

A8 - OUTPUT OVERLOAD AND SHORT CIRCUIT

PROTECTION

To prevent permanent damage to the GS-D500A,

three protections have been implemented against

overload and short circuits between:

- output to output

- output to ground

When one of these adverse conditions occurs, the

driver of the output H-bridges is disabled for about

500ms and the condition is signaled by the FAULT

signal.

A9 - FAULT SIGNAL

The FAULT signal is available at pin J3-13. When a

fault is present, pin 13 goes low versus pins 6,7.

Whenever the FAULT signal is activated, the led

provided in the front edge of the module is switched

ON.

The FAULT signal is active (low) when:

- the supply voltage is lower than 12V

- the heatsink temperature is higher than 90°C

- an output overload is present

- a disable is active.

Figure 9 - FAULT signal output circuit

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