Hitachi SJ700 Series Software, Instruction Manual

Page: 100 / 134

Chapter 5 Instruction Words
5 - 46
Variable name Range of values Default Unit Data size Attribute
ERR CNT
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
：
Yw= 0 : Turn Y (00) to Y (05) off.
UL(00)= ERR CNT : Fetch the trip count data.
UL(01)= 100
If UL(00) < UL(01) then SKIP : When the trip count exceeds 100 (times).
Y(00)= 1 : turn Y (00) on.
goto SKIP
SKIP Y(01)= 1 : Turn Y (01) on when the process ends.
：
Variable name Range of values Default Unit Data size Attribute
ERR (1) to
ERR (6)
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])
：
entry
Yw=
0
if ERR(1) = U(00) then MATCH : Check the factor of the latest trip.
if ERR(2) = U(00) then MATCH : Check the factor of the trip preceding the
latest.
if ERR(3) = U(00) then MATCH : Check the factor of the trip two trips before the
latest.
if ERR(4) = U(00) then MATCH : Check the factor of the trip three trips before
the latest.
if ERR(5) = U(00) then MATCH : Check the factor of the trip four trips before the
latest.
if ERR(6) = U(00) then MATCH : Check the factor of the trip five trips before the
latest.
Y(00)= 0 : Turn Y (00) off.
goto SKIP
MATCH Y(00)= 1 : Turn Y (00) on.
SKIP Y(01)= 1 : Turn Y (01) on when the process ends.
：
(Data area [Data Window])
U(00) = 3 : Set "3" (E03) in variable "U (00)". (Error code "E03" indicates a trip due to
overcurrent.)