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Operation
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300750767_002_C3 - 12/2020 - © Leybold
4.4.1 LED Display and Control Unit
The LED display and control unit is used to program the frequency converter
and to display fault information. The LEDs indicate the frequency converter
status.
After switching on, the display indicates alternating every three seconds the
monitoring parameters U1-02 (output frequency) and U7-03 (Pt 1000 tem-
perature). The units of measurement are not displayed. When the output fre-
quency is indicated, then simultaneously the LED FOUT will come on and
two digits after the decimal point are displayed. Example:
120.00
(FOUT-LED on)
U1-02 = 125.00 Hz
50
(FOUT-LED off)
U7-03 = 50 °C
Fig. 4.2 LED display and control unit
RUN
STOP
ALM
REV
DRV
FOUT
Fig. 4.3 Keys and functions
Keys and Functions
Display
Name
Function
Data Display Area
Displays the frequency reference, parameter number, etc.
ESC Key
Returns to the previous menu.
RESET Key
Moves the cursor to the right.
Resets a fault.
RUN Key
Starts the drive in the LOCAL* mode. The Run LED
- is on, when the drive is operating the motor.
- flashes during deceleration to stop or when the frequency reference is 0.
- flashes quickly the drive is disabled by a DI, the drive was stopped using a fast stop DI or
a run command was active during power up.
Up Arrow Key
Scrolls up to select parameter numbers, setting values, etc.
Down Arrow key
Scrolls down to select parameter numbers, setting values, etc.
STOP Key
Stops the drive.
ENTER Key
Selects modes, parameters and is used to store settings.
LO/RE Selection
Key
Switches drive control between the operator (LOCAL) and the control circuit terminals
(REMOTE)*. The LED is on when the drive is in the LOCAL mode (operation from keypad).
ALM LED Light
Flashing: The drive is in the alarm state.
On: The drive is in a fault state and the output is stopped
REV LED Light
On: The motor rotation direction is reverse.
Off: The motor rotation direction is forward
DRV LED Light
On: The drive is ready to operate the motor.
Off: The drive is in the Verify, Setup, Parameter Setting or Auto tuning mode
FOUT LED Light
On: The output frequency is displayed on the data screen
Off: Anything else then the output frequency is displayed on the data screen
* The pump is not intended for LOCAL mode. Default is REMOTE
RUN
STOP
ALM
REV
DRV
FOUT