Protective and Diagnostic Functions
7-
11
K
K
K
K
Operation
Errors
An
operation error will occur if there is an invalid setting or a contradiction between two parameter settings. It
won't
be possible to start the Inverter until the parameters have been set correctly. (The alarm output and fault
contact
outputs will not operate either.)
When
an operation error has occurred, refer to the following table to identify and correct the cause of the
errors.
Table 7.3 Operation Error Displays and Incorrect Settings
Display
Meaning
Incorrect settings
kVA
Selec-
tion
Incorrect Inverter
capacity setting
The
Inverter capacity setting doesn't match the Unit. (Contact your dealer.)
Limit
Parameter setting range
error
The
parameter setting is outside of the valid setting range.
Terminal
Multi-function input
selection error
One
of the following errors has been made in the multi-function input (H1-01 to H1-
06)
settings:
• The
same setting has been selected for two or more multi-function inputs.
• An
up or down command was selected independently. (They must be used
together.)
• The
up/down commands (10 and 11) and Accel/Decel Ramp Hold (A) were
selected
at the same time.
• Speed
Search 1 (61, maximum output frequency) and Speed Search 2 (62. set fre-
quency)
were selected at the same time.
• External
Baseblock NO (8) and External Baseblock NC (9) were selected at the
same
time.
• The
up/down commands (10 and 11) were selected while PID Control Mode
Selection
(b5-01) was enabled.
• The
Multi-function Analog Input Terminal (A2) Function Selection (H3-09) was
set
to a value other than 1F and the Terminal 13/14 Switch (1F) was selected, but
the
Terminal A1/A2 Switching (H3-13) was set to use the main speed frequency
for
A2 (H3-13 = 1).
• Positive
and negative speed commands have not been set at the same time.
• The
emergency stop command NO and NC have been set at the same time.
Sequence
Select
Option Card selection
error
The
Option Card was selected as the frequency reference source by setting b1-01 to
3,
but an Option Card isn't connected (C option).
PG
Opt
Missing
Control method selec-
tion error
V/f
control with PG feedback was selected by setting A1-02 to 1, but a PG Speed
Control
Card isn't connected.
Analog
Selection
Multi-function analog
input selection error
The
same setting has been selected for the analog input selection and the PID func-
tion
selection.
• H3-09
= B and H6-01 = 1
• H3-09
= C and H6-01 = 2
b1-01
(Reference Selection) is set to 4 (pulse input) and H6-01 (Pulse Train Input
Function
Selection) is set to a value other than 0 (frequency reference).
Parameter selection
error
A
setting has been made that is not required in the current control method. Ex.: A
function
used only with open loop vector control was selected for V/f control.
PID control selection
error
The
following settings have been made at the same time.
• b5-01
(PID Control Mode Selection) has been set to a value other than 0.
• b5-15
(PID Sleep Function Operation Level) has been set to a value other than 0.
• b1-03
(Stopping Method Selection) has been set to 2 or 3.
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