CARLO GAVAZZI VariFlex3 RVFFA3400400F, Быстрый старт

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Motor Controllers AC Variable Frequency Drives
Type Variflex 3 RVFF
Specifications are subjected to change without notice.
71
LED display
Description Cause
Possible solutions
LOPBT
Low flow fault
Low flow fault
•
The feedback signal is not
connected.
•
Due to HVAC feedback value is
lower than the limit of minimum
flow.
•
Check feedback signal is
correct and with right
connection.
•
Ensure that the feedback
value is higher than the limit
of minimum flow (23-51).
HIPBT
High flow fault
High flow fault
•
Since HVAC feedback value is
higher than the limit of maximum
flow.
•
Check feedback signal is
correct.
•
Ensure that the feedback
value is lower than the limit
of maximum flow (23-48)
.
LPBFT
Low pressure
fault
Low pressure fault
•
The feedback signal is not
connected.
•
Since feedback value of pump
pressure is lower than limit of
minimum flow.
•
Check feedback signal is
correct and with connection.
•
Check if feedback value of
pressure is lower than limit
of minimum pressure (23-
15).
OPBFT
High pressure
fault
High pressure fault
•
Since feedback value of pump
pressure is lower than limit of
maximum flow.
•
Check feedback signal is
correct.
•
Check if feedback value of
pressure is lower than limit
of maximum pressure (23-
12).
LSCFT
Low suction
fault
Low suction fault
•
Insufficient water supply of effluent
channel leads to insufficient suction
•
PID difference is higher than its
level or current is lower than output
current level
•
Check if water of effluent
channel is enough, and
water supply is regular.
•
Check PID difference is
higher than its level or
current is lower than output
current level
CF00
Operator
Communicatio
n Error
Errors of data transmission
occur in keypad
•
Keypad and inverter cannot
transmit data after power on 5
seconds
•
Disconnect the operator and
then reconnect.
•
Replace the control board
CF01
Operator
Communicatio
n Error 2
Errors of data transmission
occur in keypad
•
Keypad and inverter can transmit
data but transmission error occurs
for more than 2 seconds
•
Disconnect the operator and
then reconnect.
•
Replace the control board
CT Fault
Fault occurs in voltage level
of three-phase input
•
Abnormal input voltage, too much
noise or malfunctioning control
board
•
Check input voltage signal
and the voltage on the
control board.
Double
Communicatio
n Error
Redundant Profibus and
Modbus protocol
•
User may use two communication
mechanisms simultaneously
•
Check only one
communication mechanism is
used.