116 - 140
Communication protocol
Function
instruction
Address
definition
Data meaning instruction
R/W
characteristics
Read current stage
of the multi-step
speed
3012H Range:
0~15
R
External length
3013H
Range: 0~65535
R
External counting
value
3014H Range:
0~65535
R
Torque setting
3015H
-300.0~300.0% (Unit: 0.1% )
R
Inverter code
3016H
R
Fault code
5000H
R
R/W characteristics means the function is with read and write characteristics. For example, “communication
control command” is writing characteristic and control the inverter with writing command (06H). R
characteristic can only read other than write and W characteristic can only write other than read.
Note:
when operating on the inverter with the table above, it is necessary to enable some parameters. For
example, the operation of running and stopping, it is necessary to set P00.01 to communication running
command channel and set P00.02 to MODBUS communication channel. And when operate on “PID
reference”, it is necessary to set P09.00 to “MODBUS communication setting”.
The encoding rules for device codes (corresponds to identifying code 2103H of the inverter)
Code high
8bit
Meaning
Code low 8
position
Meaning
01 ControlVIT 06 CV30
Inverter
Note:
the code is consisted of 16 bit which is high 8 bits and low 8 bits. High 8 bits mean the motor type
series and low 8 bits mean the derived motor types of the series. For example, 0011H means CV30
inverters.
7.4.3 Fieldbus ratio values
The communication data is expressed by hex in actual application and there is no radix point in hex. For
example, 50.12Hz can not be expressed by hex so 50.12 can be magnified by 100 times into 5012, so hex
1394H can be used to express 50.12.
A non-integer can be timed by a multiple to get an integer and the integer can be called fieldbus ratio values.
The fieldbus ratio values are referred to the radix point of the setting range or default value in the function parameter list. If
there are figures behind the radix point (n=1), then the fieldbus ratio value m is 10
n
. Take the table as the example:
Summary of Contents for CV30
Page 1: ...USER MANUAL INVERTER CONTROLVIT CV30...
Page 2: ......
Page 27: ...Keypad Operation Procedure 27 140 Figure 4 5 Sketch map of state watching...
Page 89: ...Function Parameters 89 140 5 2 Diagram of quick start...
Page 139: ......