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4.3 Keypad Display Messages
Essential Series VFDs have several operating modes: AUTO, MANUAL, and OFF. The
factory default operating mode is OFF. Operating Modes are detailed in Table 7.
Table 7 – Operating Modes
In AUTO mode, the motor load will automatically run if both AUX1 and AUX2
remote switches are closed. Open AUX1 or AUX2 to stop the motor or push
STOP/OFF key.
The parameter, ENABLE RESTARTS, must be set to YES to allow automatic
re-starts. See Table 15, Auto-Restart Parameters for details.
CAUTION: By default, AUX1 is programmed such that OPEN=STOP,
CLOSED=RUN and AUX2 is programmed such that OPEN=RUN,
CLOSED=STOP. When SYSTEM CONFIG = 2 (Analog CP), AUX1 and
AUX2 are programmed such that OPEN=RUN, CLOSED=STOP. See
parameters AUX1 SELECT and AUX2 SELECT to change this setting.
Activate MANUAL mode by pushing the MANUAL key until MANUAL appears
on top left of the display. In MANUAL mode the motor load is controlled by
using the RUN and STOP keys, which will override the AUX1 and AUX2
remote switches.
Manual control of the drive through the keypad can be disabled through the
parameter DISABLE MANUAL. See Table 14, Interface Parameters, for
details.
CAUTION: Operating the system in MANUAL mode on the keypad
overrides signals from the pressures switches. Operating the system in this
mode may lead to dangerous pressures in closed plumbing systems.
CAUTION: If the 4-20 mA or 0-5 VDC control terminals are short
circuited, power will be lost to the keypad. If the drive is in MANUAL RUN
mode the drive will not respond to a STOP command on the keypad.
Disconnect input power to the drive to stop the motor and then fix the short
circuit.
The factory default operating mode is OFF. The adjustable parameter,
ENABLE RESTARTS, must be set to 1 to allow automatic re-starts. To exit
AUTO mode, press the STOP/OFF key until OFF appears on top left of the
display. If the motor is running, it will stop. To restart the motor, revert to either
AUTO mode or MANUAL mode. Certain faults can also be cleared by
pressing the up and down arrow keys at the same time and holding for one
second.
4.4 Keypad Main Menu Items
The HOME key toggles between the Home screen (operating status screen) and the Main
Menu items. Use the UP and DOWN arrows to scroll through the Main Menu items. Press
ENTER to view or edit a Main Menu item.
Figure 11 contains a brief description of Main Menu items, followed by in-depth instructions
on the use and function of each Main Menu item.
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