Programmable digital inputs. Generally used for motor Run/Stop
control.
0 = RUN/STOP (closed = RUN, open = STOP)
1 = RUN/STOP (open = RUN, closed = STOP)
2 = Always in Run Mode
3 = Latching Relay. When the connection between the AUX
terminal and COM is opened the drive will stop the motor and
display a fault on the screen. The motor will remain stopped even
if the connection is closed. The fault must be cleared by pressing
the ENTER key.
4 = Reverse Rotation. When the circuit changes states, the
motor will ramp down for (30 seconds + 1.2.5 SHORT CYCLE
DELAY), then ramp back up in the opposite rotation. When
open, the drive will run in standard rotation, closed will run in
reverse rotation.
5 = Reverse Latching Relay. When the connection between the
AUX terminal and COM is closed the drive will stop the motor
and display a fault on the screen. The motor will remain stopped
even if the connection is opened. The fault must be cleared by
pressing the ENTER key.
6 = Speed Reference. Used in conjunction with 1.3.35 AUX
SWITCH SPEED CONTROL, multiple speeds can be
programmed and controlled based on the open/closed states of
AUX3 and AUX4.
7 = Fireman’s Override Std. Closing the AUX will override
current settings to run the load in standard rotation at Max
Frequency. This will also bypass all VFD and motor protections
and run the drive until failure, to assist with building evacuation. If
1.1.14 REVERSE ROTATION is set to YES, the drive will
reverse and run the pump in standard rotation.
8 = Fireman’s Override Reverse. Closing the AUX will override
current settings to run the load in reverse rotation at Max
Frequency. This will also bypass all VFD and motor protections
and run the drive until failure, to assist with building evacuation. If
1.1.14 REVERSE ROTATION is set to YES, the drive will run the
pump in its current rotation.
9 = System Config Special Function. This will automatically be
set when 1.3.1 SYSTEM CONFIG is set for 2, 3, 5, and 6. See
Section 5.5 for details.
The function of these inputs can change when certain System
Configuration settings are chosen. See Section 5.5.
When the drive is in AUTO mode and stopped, the display will
show:
A1█ A2_ A3█ A4_
The _ symbol indicates that the input is off and the █ symbol
indicates the input is on. In the example above, AUX1 and
AUX3 are on.
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