5 Operating the Inverter
45
Monitoring
The following items can be monitored using U constants.
* 1. The status indicator is not turned ON.
* 2. Refer to the next page for input/output terminal status.
* 3. The display range is from
−
99.9 to 99.99 kW.
When regenerating, the output power will be displayed in units of
0.01 kW when
−
9.99 kW or less and in units of 0.1 kW when more
than
−
9.99 kW.
Constant
No.
Name
Unit
Description
U-01
Frequency Reference
(FREF)*
1
Hz
Frequency reference can be monitored.
(Same as FREF)
U-02
Output Frequency
(FOUT)*
1
Hz
Output frequency can be monitored.
(Same as FOUT)
U-03
Output Current (IOUT)*
1
A
Output current can be monitored.
(Same as IOUT)
U-04
Output Voltage
V
Output voltage can be monitored.
U-05
DC Voltage
V
Main circuit DC voltage can be monitored.
U-06
Input Terminal Status*
2
-
Input terminal status of control circuit terminals can
be monitored.
U-07
Output Terminal Status*
2
-
Output terminal status of control circuit terminals can
be monitored.
U-08
Torque Monitor
%
The amount of output torque per rated torque of the
motor can be monitored. When V/f control mode is
selected, “---” is displayed.
U-09
Fault History
(Last 4 Faults)
-
The last four fault history records are displayed.
U-10
Software No.
-
Software number can be checked.
U-11
Output Power*
3
kW
Output power can be monitored.
U-12
U-14
U-15
Data Reception Error*
4
-
Contents of MEMOBUS communication data recep-
tion error can be checked.
(Contents of transmission register No. 003DH are
the same.)
U-16
PID Feedback
%
Input 100(%)/Max. output frequency or equivalent
U-17
PID Input
%
±
100(%)/
±
Max. output frequency
U-18
PID Output
%
±
100(%)/
±
Max. output frequency
U-19
Frequency Reference
Bias Monitor *
5
%
Bias can be monitored when Up/Down Command 2
is used.
