User Monitor; User Trip - Hitachi NT2021XA Instruction Manual

User Monitor

Variable name
Umon (00) to
Umon (02)
User monitor 0 to 2
- Format
Format
Umon (ii) = <variable>
Umon (ii) = <variable1> <operator>
<variable>.
<variable> = Umon (ii)
- Explanation
This instruction displays arbitrary data to the digital operator of the inverter.
Each display variable and the correspondence of the display code are as follows.
Umon (00) : User monitor 0 (d025)
Umon (01) : User monitor 1 (d026)
Umon (02) : User monitor 2 (d027)
- Sample program : Program to display the summation of U (01) and U (02) on user monitor 2 (d027)
Label Mnemonic
Umon(02)=

User Trip

- Format
Format
trip <variable>
- Explanation
This instruction makes inverter trip. Range of <variable> is 0 to 9.
Note : When the user trip occurs without the description of on trip go to instruction, the program stops
immediately after the occurrence of inverter trip.
- Sample program : Program to issue the user trip 2 (E52) when the summation of variable 1 and variable2 exceeds 20
Label Mnemonic
U(00)=
if
then
trip
else
Operator display variable
Range of values
31 31
-2 – 2
Displays <variable>
Displays the result of operation with <variable1> and <variable2> on user
monitor (ii)
Value of user monitor (ii) is read out to
parameter1 parameter2 parameter3
U(01) + U(02)
User trip issue command
Makes the inverter trip
parameter1 parameter2 parameter3
U(01) + U(02)
U(00) > 20
2
Default Unit
-1 0 -
Description
on user monitor (ii)
<variable>
parameter4 parameter5
Description
parameter4 parameter5
2-29
Chapter 2 Syntax
Data size Attribute
Signed Readable
2-word data and writable