Stop Statement; Chg Param Statement - Hitachi SJ700-2 Series Instruction Manual

stop statement

- Format
Format
stop
- Explanation
This instruction makes the inverter decelerate and stop the motor.
When the FW terminal is on (FW = 1) or the RV terminal is on (RV = 1), this instruction turns off the FW
terminal (FW = 0) or RV terminal (RV = 0).
- Sample program: Program to make the inverter operate the motor for forward or reverse rotation at a
constant speed for 10 seconds
：
if X(00)
FW= 1
goto LBL2
LBL1 RV= 1
LBL2 wait FA1
wait 10.00
stop
：

chg param statement

- Format
Format
chg param <display code>
<variable> or <constant>
- Explanation
<display code> specifies the parameter number of the inverter parameter of which the setting is to be
changed. The range of parameter settings depends on the standard inverter specifications. For the
inverter parameters and ranges of their settings, refer to the SJ700 Series Inverter Instruction Manual.
Specify an integer as the desired new setting of the parameter in <variable> or <constant>. To specify a
numerical value other than 0 to 127, preset the value in a variable and specify the variable as
<variable>. The changed parameter setting is reflected in the inverter in a 40-ms cycle, which conforms
to the standard inverter specifications. If, however, you directly access the inverter's EEPROM, the
change is reflected in the inverter in the same cycle as that of instruction execution.
Note: You cannot specify any of parameters "U001" to "U012" in <display code>.
- Sample program: Program to change the overload restriction level according to output frequency
(Code area [Code Window])
：
U(00)=
U(01)=
U(02)=
U(03)=
chg param
FW=
wait
chg param
wait
chg param
：
(Parameter)
b031 = 10 (can be updated during operation)
Instruction to stop motor operation by the inverter
This instruction makes the inverter decelerate and stop the motor.
<> 1 then
= 1
Instruction to change a parameter setting
This instruction changes the setting of the inverter parameter
specified by <display code> to <variable> or <constant>.
2000
1500
1000
1000
b022 U(00)
1
FM >= U(03)
b022 U(01)
FA1 = 1
b022 U(02)
Chapter 5 Instruction Words
Description
LBL1
: When X (00) is on, operate the motor for forward
rotation.
: When X (00) is on, operate the motor for reverse
rotation.
: Wait until the motor rotates at a constant speed.
: Operate the motor at 5 Hz for 10 seconds.
: Decelerate and stop the motor. (FW = 0 or RV = 0)
Description
: Set 200% in variable "U (00)."
: Set 150% in variable "U (01)."
: Set 100% in variable "U (02)."
: Set 10 Hz in variable "U (03)."
: Change the setting of "b022" to 200.0%
: Wait until the output frequency reaches 10 Hz.
: Change the setting of "b022" to 150.0%.
: Wait until acceleration ends.
: Change the setting of "b022" to 100.0%.
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