JT550 Series Inverter Manual
Chapter 4 Keyboard and Display
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4.2 Keyboard Indicators Description
○ RUN: ON indicates that the inverter is in the Operating state, and OFF indicates that it is in the stop
state
；
○ ALM: Malfunction Indicator. When an error occurs, the indicator turns on. Normally it is off
；
○ Hz : Unit of frequency, ON indicates the corresponding parameter values of the units
；
○ A : Unit of current
；
○ V :Unit of voltage
；
○ % : Percentage
；
○ Rpm: Revolutions Per Minute
；
○F/R: Forward/Reverse.
4.3 Keyboard Button Description
Button
Name
Function
ESC
Escape key
Enter the primary menu or exit
ENTER
Confirm Key
Enter the next interface; Confirm the setting of parameters
∧
Increment key
Increase the parameter number or function code by one unit
∨
Decrement key
Decrease the parameter number or function code by one unit
>>
Shift Key
Select the displayed parameters in turn in the stop or Operating
state, and shift through each unit when changing the parameters.
RUN
RUN key
Start the inverter.
STOP/RESET Stop / Reset key Stop the inverter when it is in the Operating state and reset the
inverter when it is in the fault state.
MK
Multi-Function
Key
Switch functions according to F8.01
Table 4.1 Keyboard Functions Table
4.4 Viewing and Modifying Function Codes
The operation panel of JT550 series features three-level menu mode: function parameters group (first
level of menu), function codes (second level of menu), and function codes modification (third level of
menu). The float chart is shown as below:
50.00
F0
F0.08
F0-09
50.00
ESC
ENTER
ENTER
ENTER
ESC
ESC
ENTER
If there is a blinking
digit,press
ESC
Ststus parsmeter
default display
Level-l menu
select the funxtion
code group
to modify the digit
Level-ll menu
Select the
function code
Level-ll menu
Set the value of
the function code
Not to save
the setting
To save
the setting
Next function
code
Figure 4.3 Three-Level Menu Float Chart of Operation Procedure
When changing parameters on the third level menu, you can press “ESC” or “ENTER” to return to the
second menu. The difference is that pressing “ENTER” saves the modified parameters while pressing “ESC”
does not save them
.
