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.
72
LED display Description
Cause Possible solutions
PTC Signal
Loss
PTC Signal Loss detecting
triggers error message
•
PTC connection trips and has
lasted for more than 10 seconds
•
Check if MT terminal and
GND terminal are connected.
OPR
Disconnection
Run command is set to
keypad mode (00-02=0). But
when the inverter runs, the
operator is disconnected.
Selection of operator
removed (16-09) determines
if the inverter stops or
displays fault signal.
•
The inverter runs at keypad mode
(00-02=0), but warning of operator
being disconnected/ removed
occurs.
•
Check if the operator is
disconnected or removed.
FBLSS
PID Feedback
Signal Loss
When 23-19 > 0, the
inverter will display fault
signal on the basis of the
value of feedback pressure
< operation pressure setting
(23-02) x detection
proportion of loss pressure
(23-19) and detection time
of loss pressure (23-18)
passed, and 23-78=2 in the
meanwhile.
•
Since proportion of loss pressure
(23-19) is enabled and over high,
the inverter trips to fault. Thus,
feedback sensor cannot operate
properly or is not installed correctly.
•
Check if the proportion of
loss pressure (23-19) is set
correctly.
•
Make sure the feedback
sensor is installed correctly
and PID feedback signal
operates normally.
SC
Short Circuit The inverter output or load
is at short circuit.
•
Short circuit or grounding fault (08-
23=1) occurs from the damage to
motor, insulation deterioration or
cable breakage.
•
Check if the load is at correct
wiring.
PF
Protection
Fault
OH1 error occurs for 3 times
in 5 minutes when run
command in multi-function
digital input terminals is not
removed.
•
Run command in multi-function
digital input terminals is not
removed.
•
Remove run command in
multi-function digital input
terminals.
TOL
External
Overload
External overload
(enabled only when
firemode activated
•
External overload in multi-function
digital input terminals. (Ex. Fan
overheat)
•
Check external overload.
•
Reset external overload of
digital input.