6-3
6.2 If No Alarm Code Appears on the LED Monitor
6.2.1 Motor is running abnormally
[ 1 ] The motor does not rotate.
Possible Causes
What to Check and Suggested Measures
(1) No power supplied to the
inverter.
Check the input voltage, output voltage and interphase voltage
unbalance.
Î
Turn on a molded case circuit breaker, a ground fault circuit
interrupter (with overcurrent protection) or a magnetic
contactor.
Î
Check for voltage drop, phase loss, poor connections, or
poor contacts, and fix them if necessary.
(2) No
forward/reverse
operation command was
inputted, or both the
commands were inputted
simultaneously (external
signal operation).
Check the input status of the forward/reverse command with
Menu #4 "I/O checking" using the keypad.
Î
Input a run command.
Î
Set either the forward or reverse operation command to off if
both commands are being inputted.
Î
Correct the assignment of commands
FWD
and
REV
to
function codes E98 and E99.
Î
Connect the external circuit wires to control circuit terminals
[FWD] and [REV] correctly.
(3) No indication of rotation
direction (keypad
operation).
Check the input status of the forward/reverse rotation direction
command with Menu #4 "I/O checking" using the keypad.
Î
Input the rotation direction (F02 = 0), or select the keypad
operation with which the rotation direction is fixed (F02 = 2
or 3).
(4) The inverter could not
accept any run commands
from the keypad since it
was in Programming
mode.
Check which operation mode the inverter is in, using the
keypad.
Î
Shift the operation mode to Running mode and enter a run
command.
(5) A run command with
higher priority than the
one attempted was active,
and the run command was
stopped.
While referring to the block diagram of the drive command
generator*, check the higher priority run command with Menu
#2 "Data checking" and Menu #4 "I/O checking" using the
keypad.
*Refer to the FRENIC-Mini User’s Manual, Chapter 4.
Î
Correct any incorrect function code data settings (e.g.,
cancel the higher priority run command).
(6) The
reference
frequency
was set below the starting
or stop frequency.
Check that a frequency command has been entered, with
Menu #4 "I/O checking" using the keypad.
Î
Set the value of the frequency command to the same or
higher than that of the starting or stop frequency (F23 or
F25).
Î
Reconsider the starting and stop frequencies (F23 and
F25), and if necessary, change them to lower values.
Î
Inspect the frequency command devices, signal converters,
switches, or relay contacts. Replace any ones that are
faulty.
Î
Connect the external circuit wires correctly to terminals [13],
[12], [11] and [C1].
Summary of Contents for Frenic Mini FRN001C1E-2U
Page 85: ...5 4 ...
Page 88: ...5 7 ...
Page 89: ...5 8 C codes Control Functions of Frequency ...
Page 92: ...5 11 J codes Application Functions y codes Link Functions ...
Page 167: ...8 6 8 3 Common Specifications ...
Page 168: ...8 7 ...
Page 171: ...8 10 8 5 External Dimensions 8 5 1 Standard models ...
Page 172: ...8 11 ...
Page 173: ...8 12 8 5 2 Models available on order EMC filter built in type ...
Page 174: ...8 13 ...
Page 192: ...MEMO ...
Page 193: ...MEMO ...
Page 194: ...MEMO ...
Page 196: ...Fuji Electric FA Components Systems Co Ltd Fuji Electric Corp of America 2007 06 F07 F07 00CM ...