TREND NX Variable Speed Drives - Manual (Page 84)

CONTROL KEYPAD vacon • 67
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7
7. CONTROL KEYPAD
The control keypad is the link between the Vacon frequency converter and the user. The Vacon NX control
keypad features an alphanumeric display with seven indicators for the Run status (RUN, , READY,
STOP, ALARM, FAULT) and three indicators for the control place (I/O term/ Keypad/BusComm). There are
also three Status Indicator LEDs (green - green - red), see Status LEDs (green – green – red) below.
The control information, i.e. the number of menu, description of menu or the displayed value and the
numeric information are presented on three text lines.
The frequency converter is operable through the nine push-buttons of the control keypad. Furthermore,
the buttons serve the purposes of parameter setting and value monitoring.
The keypad is detachable and isolated from the input line potential.
7.1
Indications on the Keypad display
Figure 7-1. Vacon control keypad and drive status indications
7.1.1 Drive status indications (See control keypad)
The drive status indications tell the user what the status of the motor and the drive is and whether the
motor control software has detected irregularities in motor or frequency converter functions.
RUN = Motor is running; Blinks when the stop command has been given but the frequency is
still ramping down.
= Indicates the direction of motor rotation.
STOP = Indicates that the drive is not running.
READY = Lights when AC power is on. In case of a trip, the symbol will not light up.
ALARM = Indicates that the drive is running outside a certain limit and a warning is given.
FAULT = Indicates that unsafe operating conditions were encountered due to which the drive
was stopped.
READY FAULT STOP RUN
Bus/Comm Keypad I/O term
ALARM
run
ready fault
1 2 3 4 5 6
a b
I II III
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c
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2
3
4
5
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