Chapter 2 Syntax
2-51
ERR CNT
Variable name
Range of values
Default
Unit
Data size
Attribute
Trip counter
0 to 65535
-
Number
of times
Unsigned
1-word data
Readable
- Explanation
This variable can be used to monitor the number of times the inverter has tripped. The data monitored with this variable
corresponds to the data monitored by the trip counter function (d080). This variable is read-only.
- Sample program :
Program to check whether the inverter has tripped more than 10,000 times
Label
Mnemonic
parameter1
parameter2
parameter3
parameter4
parameter5
㩷
㩷
㩷 䋺
㩷
㩷
㩷
㩷
㩷
㩷
㩷
Yw= 0
㩷
㩷
㩷
: Turn Y (00) to Y (05) off.
㩷
UL(00)=
㩷
㩷
ERR
CNT
㩷
㩷
: Fetch the trip count data.
㩷
UL(01)=
㩷
㩷
100
㩷
㩷
㩷
If
UL(00)
<
UL(01)
then
SKIP
: When the trip count exceeds 100 (times).
㩷
Y(00)= 1
㩷
㩷
㩷
: turn Y (00) on.
㩷
goto SKIP
㩷
㩷
㩷
㩷
SKIP
Y(01)= 1
㩷
㩷
㩷
: Turn Y (01) on when the process ends.
㩷
㩷 䋺
㩷
㩷
㩷
㩷
㩷
㩷
ERR (1) to
ERR (6)
Variable name
Range of values
Default
Unit
Data size
Attribute
Trip monitoring 1 to 6
0 to 127
-
-
Unsigned
1-word data
Readable
- Explanation
These variables can be used to monitor the causes of the last six trips made by the inverter. The data monitored with this
variable corresponds to the data monitored by trip monitoring functions 1 to 6 (d081 to d086). These variables are read-only.
- Sample program :
Program to check whether the last six trips include one caused by overcurrent
(Code area [Code Window])
Label
Mnemonic
parameter1
parameter2
parameter3
parameter4
parameter5
㩷
㩷
㩷 䋺
㩷
㩷
㩷
㩷
㩷
㩷
㩷
entry
㩷
㩷
㩷
㩷
㩷
㩷
㩷
Yw= 0
㩷
㩷
㩷
㩷
㩷
if
ERR(1)
=
U(00)
then
MATCH
: Check the factor of the latest trip.
㩷
if ERR(2)
=
U(00)
then
MATCH
: Check the factor of the trip preceding the
latest.
㩷
if ERR(3)
=
U(00)
then
MATCH
: Check the factor of the trip two trips
before the latest.
㩷
if ERR(4)
=
U(00)
then
MATCH
: Check the factor of the trip three trips
before the latest.
㩷
if ERR(5)
=
U(00)
then
MATCH
: Check the factor of the trip four trips
before the latest.
㩷
if ERR(6)
=
U(00)
then
MATCH
: Check the factor of the trip five trips
before the latest.
㩷
Y(00)= 0
㩷
㩷
㩷
: Turn Y (00) off.
㩷
goto SKIP
㩷
㩷
㩷
㩷
MATCH Y(00)=
1
㩷
㩷
㩷
㩷
: Turn Y (00) on.
SKIP
Y(01)= 1
㩷
㩷
㩷
㩷
: Turn Y (01) on when the process ends.
㩷
㩷 䋺
㩷
㩷
㩷
㩷
㩷
㩷
(Data area [Data Window])
U (00) = 3
: Set “3” (E03) in variable “U (00)”. (Error code “E03” indicates a trip due to overcurrent.)
Summary of Contents for NT2021XA
Page 4: ... Safety Instructions ...
Page 8: ... Contents ...
Page 10: ...Chapter 1 Outline of EzSQ ...
Page 14: ...1 4 Chapter 1 Outline of EzSQ ...
Page 16: ...Chapter 2 Syntax ...
Page 68: ...2 52 Chapter 2 Syntax ...
Page 70: ...Chapter 3 Interface with the Inverter ...
Page 80: ...3 10 Chapter 3 Interface with the Inverter ...