Xylem IM255 AQUAVAR Intelligent Pump Controller - Manual (Page 50)

Table 13: Navigation keys functions
Key Function
Back Pressing the [Back] key reverts to the previous step or
layer in the navigation structure.
Cancel Pressing the [cancel] button will cancel the last change or
command as long as the display has not been changed.
Info Pressing the [Info] button will display information about
a command, parameter, or function in any display
window. [Info] provides detailed information when
needed. Exit the Info mode by pressing either [Info],
[Back], or [Cancel].
OK [OK] is used for choosing a parameter marked by the
cursor and for enabling the change of a parameter.
Arrows The four navigation arrows are used to navigate between
the different choices available in [Quick Menu], [Main
Menu] and Alarm Log]. Use these keys to move the
cursor.
Table 14: Indicator lights functions
Light Indicator Function
Green ON The ON light activates when the
controller receives power from mains
voltage, a DC bus terminal, or an
external 24 V supply.
Yellow WARN When warning conditions are met,
the yellow WARN light comes on and
text appears in the display area
identifying the problem.
Red ALARM A fault condition causes the red alarm
light to flash and an alarm text is
displayed/
Operation keys
Table 15: Operation keys functions
Hand On The [Hand On] key enables control of the drive via the
LCP interface. Pressing [Hand On] also starts the motor
and the speed can be manually adjusted using the arrow
keys. The [Hand On] key can be enabled or disabled via
parameter 0–40 [Hand On] key on LCP. If [Hand On] is
active the drive can be stopped by:
• Start signal on DI 18
• The [Off] button
• Stop command from serial communication
Off Pressing the [Off] key will stop the motor. The [Off] key
can be enabled or disabled via parameter 0–41 [Off] key
on LCP. If no external stop function is selected and the
[Off] key is disabled, the motor can only be stopped by
disconnecting the mains supply.
Electrical Installation
48 Aquavar ® Intelligent Pump Controller INSTRUCTION MANUAL