FAULT OUTPUT

The E-AC Drive can signal, through its fault output, that it has detected a fault. Internally, the terminals FAULT+ (C) and FAULT- (E) connect to the open collector and open emitter, respectively, of an optically isolated transistor. The transistor acts like a switch: it conducts when the drive is functioning normally; it does not conduct when any of the following conditions exist.

No power is applied to the drive

AC line voltage is too low (less than 95VAC)

Drive temperature is higher than 55° C (131° F)

Drive detects a short circuit in motor or motor cable

Fault output specifications are:

VCE:

30VDC

VCESAT:

1 VDC

Collector Current:

40 mA minimum

Dissipation:

40 mW maximum

Optically Isolated:

Yes

RESET INPUT

The reset input provides a means for you to reset the E-AC Drive, without actually cycling power. To activate the reset input, apply a positive voltage to RESET+ with respect to RESET– when the motor is not moving. The reset will not be complete until 0.7 seconds after the voltage is removed. A reset has the same effect on the drive as cycling power:

DIP switch settings are loaded into the drive for configuration.

Existing faults are cleared.

Current to the motor is turned off while voltage is applied to the reset input.

After voltage is removed from the reset input, the drive’s soft start procedure will ramp current up to the startup state. The motor will move to the nearest pole position.

After voltage is removed from the reset input, there will be a 0.7 second delay before reset is complete, and normal operations can continue.

Reset input specifications are:

Input Current:

2.5 mA

minimum

 

30 mA

maximum

Input Voltage:

3.5V

minimum (min. required for on or high signal)

 

13V

maximum

 

5V

maximum reverse voltage

Reset Voltage Pulse:

250 nanosecond minimum pulse width

Active Level:

While voltage is applied, reset occurs.

 

When voltage is removed, normal operations resume.

Reset Delay:

0.7 second delay until reset is complete, after voltage is

 

removed from input.

Optically Isolated:

Yes

 

24

E-AC Drive Hardware Installation Guide

Chapter 2 – Installation

Page 24
Image 24
Parker Hannifin 88-020292-01 A manual Fault Output, Reset Input