Fuji Electric FRENIC MEGA G2 Series - Page 656

6.5 Other Errors
6-42
[ 4 ] Display of center bars (
-----
)
Phenomenon: A center bar (
-----
) appeared on the LED monitor.
Possible cause
Check and measures
(1) When PID control had been
disabled (J01 = 0), E43 (LED
Monitor (Item selection)) is set
to 10 or 12.
PID control has been disabled
(J01 = 0) when the LED monitor
had been set to display the PID
command or PID feedback
amount by pressing the
key.
Make sure that when you wish to view other monitor items, E43 is not
set to “10: PID command” or “12: PID feedback value.”
➔ Set E43 to a value other than “10” or “12.”
Make sure that when you wish to view a PID command or a PID
feedback value, J01 (PID control) is not set to “0: Disable.”
➔ Set J01 to “1: Enable (Process control normal operation),” “2:
Enable (Process control inverse operation),” or “3: Enable (Dancer
control).”
(2) The keypad was poorly
connected.
Prior check: Even when key is pressed, the display is not switched.
Check continuity of the extension cable used in remote operation.
➔ Replace the cable.
[ 5 ] [ ] Display of parenthesis
Phenomenon: [ ] was displayed during speed monitoring by keypad.
Possible cause
Check and measures
(1) The display data overflows the
LED monitor.
Check whether the product of the output frequency and the display
coefficient (E50) exceeds 99,999.
➔ Review the data of E50.
[ 6 ] Data of function codes cannot be changed
Possible cause
Check and measures
1) An attempt was made to
change function code data that
cannot be changed when the
inverter is running.
Check if the inverter is running with Menu “Drive Monitoring” using the
keypad and then confirm whether the data of the function codes can be
changed when the motor is running by referring to the function code
tables.
➔ Stop operation, and then change the function code data.
(2) The data of the function codes
is protected.
Check the data of function code F00 (Data protection).
➔ Change the data of F00 from a data protection state (F00=1 or 3) to
a data changeable state (F00=0 or 2).
(3) The WE-KP terminal command
(“Enable data change with
keypad”) is not entered, though
it has been assigned to a digital
input terminal.
Check the data of the function codes (E01 to E09, E98, E99), and check
the input state by using “I/O Checking” from the Menu on the keypad.
➔ Input a WE-KP command through a digital input terminal.
(4) The key was not pressed.
Check whether the key was pressed after changing the function
code data.
➔ Press the - key after changing data.
Ensure that “
SAVE
” is displayed.
(5) The data of the function codes
F02, E01-E05, E98, E99 are not
changeable.
Either one of the FWD and REV terminal commands is turned ON.
➔ Turn OFF both FWD and REV.
(6) The function code(s) to be
changed does not appear.
Only the function codes registered in favorites (0.Fn:) appear.
➔ Call the menu of
1.f__
to
1.K__
by pressing key from the
favorites (
0.fn:
) state on the Menu to display the intended function
code and to change the value. (See Chapter 3, section 3.4 “Table 3.4-1
Menus available in programming mode” for details.)