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E-AC Drive Hardware Installation Guide Chapter 2 – Installation
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