Fieldbus Scale - INVT Goodrive3000 Series Operation Manual

Goodrive3000 series medium voltage VFD
Function
Closed-loop
feedback
Input IO status
Output IO status
Analog input 1
Analog input 2
Analog input 3
Analog input 4
Read input of
high-speed pulse
1
Read input of
high-speed pulse
2
Read the actual
step of multi-step
speed
External length
value
External counting
value
Torque setting
VFD identification
code
Fault code
The Read/Write (R/W) characteristics indicate whether a function parameter can be read and written. For example,
"Communication-based control command" can be written, and therefore the command code 06H is used to control the
VFD. "R" indicates that a function code is read only, and "W" indicates that a function code is written only.
Note: Some parameters in the preceding table are valid only after they are enabled. Take the running and stop operations
as examples, you need to set "Running command channel" (P00.01) to "Communication", and set "Communication mode
of running commands" (P00.02) to MODBUS For another example, when modifying "PID reference", you need to set "PID
reference source" (P09.00) to MODBUS communication.
The following table describes the encoding rules of device codes (corresponding to the identification code 2103H of the
VFD).
8 MSBs
0x01

8.4.5 Fieldbus scale

In practical applications, communication data is represented in the hexadecimal form, but hexadecimal values cannot
represent decimals. For example, 50.12 Hz cannot be represented in the hexadecimal form. In such cases, multiply 50.12
by 100 to obtain an integer 5012, and then 50.12 can be represented as 1394H in the hexadecimal form (5012 in the
decimal form).
In the process of multiplying a non-integer by a multiple to obtain an integer, the multiple is referred to as a fieldbus scale.
The fieldbus scale depends on the number of decimal places in the value specified in "Setting range" or "Default". If there
are n decimal places in the value, the fieldbus scale m is the nth-power of 10. Take the following table as an example, m is
the value of 10 to the power of n. Take the following table as an example.
Address
3009H -100.0–100.0% (Unit: 0.1%)
300AH 000–1FF
300BH 000–1FF
300CH 0.00–10.00V (Unit: 0.01V)
300DH 0.00–10.00V (Unit: 0.01V)
300EH -10.00–10.00V (Unit: 0.01V)
300FH
3010H 0.00–50.00kHz (Unit: 0.01Hz)
3011H
3012H 0–15
3013H 0–65535
3014H 0–65535
3015H -300.0–300.0% (Unit: 0.1%)
3016H
5000H
Meaning 8 LSBs
Goodrive 0x0110
Data description
GD3000 inverter
-203-
Moudbus protocol
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Meaning