Fuji Electric FRENIC-Ace series, Руководство пользователя

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6.5 When Codes Other Than Alarm Codes and Light Alarm Indication (
l-al
) are Displayed
6-25
TR
O
U
BL
ES
H
O
O
TI
N
G
Chap 6
Possible Causes Check and Measures
(7) The reference frequency was
below the starting or stop
frequency.
Check that a reference frequency has been entered correctly, using “I/O
Checking” from the Menu on the keypad.

Set the reference frequency at the same or higher value than that of
the starting and stop frequencies (F23* and F25).

Reconsider the starting and stop frequencies (F23* and F25), and if
necessary, change them to lower values.

Inspect the external frequency command potentiometers, signal
converters, switches, and relay contacts. Replace any ones that are
faulty.

Connect external circuit wiring of terminals [13], [12], [11], [C1]
correctly.
(8) A frequency command with
higher priority than the one
attempted was active.
Based on the frequency setting block diagram (See Chapter 8 “BLOCK
DIAGRAMS FOR CONTROL LOGIC”), check the data by function code
data check and I/O checking from Menu using the keypad.

Correct any incorrect function code data (e.g. cancel the higher
priority run command).
(9) The upper and lower
frequencies for the frequency
limiters were set incorrectly.
Check the data of function codes F15 (Frequency limiter (High)) and
F16 (Frequency limiter (Low)).

Change the settings of F15 and F16 to the correct ones.
(10) The coast-to-stop command
was effective.
Check the data of the function codes (E01 to E05, E98, E99), and check
the input state by using “I/O Checking” from the Menu on the keypad.

Release the coast-to-stop command setting.
(11) Broken wires, incorrect
connection or poor contact with
the motor.
Check the wiring (Measure the output current).

Repair the wires to the motor, or replace them.
(12) Overload. Measure the inverter output current.

Reduce the load (In winter, the load tends to increase.)
Check whether any mechanical brake is applied.

Release the mechanical brake.
(13) Torque generated by the motor
was insufficient.
Check that the motor starts running if the value of the torque boost
(F09*) is increased.

Increase the value of torque boost (F09*).
Check the data of function codes (F04*, F05*, H50, H51, H52, H53,
H65, and H66).

Change the V/f pattern to match the motor's characteristics.
Check that the motor switching signal (selecting motor 1 - 2) is correct
and the data of function codes matches each motor.

Correct the motor switching signal.

Modify the function code data to match the connected motor.
Check whether the reference frequency is below the slip frequency of
the motor.

Change the reference frequency so that it becomes higher than the
slip frequency of the motor.
(14) Wrong connection or poor
contact of DC reactor (DCR)
Check the wiring. DC reactor must be used with inverters of ND modes:
FRN0139E2
■
-4

or above and HD, HND modes: FRN0168E2
■
-4

or above, HHD modes FRN203E2
■
-4

or above respectively. These
inverters cannot run without a DCR.

Connect the DCR correctly. Repair or replace DCR wires.
(15) No speed command is set
(Keypad operation).
Check a speed set value of keypad.

Press key to change the speed set value.