-
52
-
-
5 1
-
R S 4 8 5
c a r d a n d R S 4 8 5 c o m m u n i c a t i o n p r o t o c o l
EC590
F u n c t i o n C o d e T a b l e
EC590
Target voltage upon V/F separation
Output voltage upon V/F separation
7027H
7028H
1V
1V
U0
-
39
U0-40
S state display
7029H
1
U0-41
S set for function state display 1
(function 01-40)
702BH
702CH
1
1
U0-43
U0-44
YO state display
702AH
1
U0
-
42
Fault information
702DH
1
U0-45
Rated frequency
Running frequency
703BH
703CH
0.01%
0.01%
U0-59
U0-60
Phase Z counting
703AH
1
U0
-
58
AC drive state
703DH
1
U0-61
Sending torque value of point-to-point
communication
Number of slaves
703FH
7040H
0.01%
1
U0-63
U0-64
Current fault code
703EH
1
U0
-
62
Torque upper limit
7041H
0.1%
U0-65
Communication extension card type
7042H
100:CANOpen
200:Pro bus-DP
300:CANLink
U0-66
Communication extension card version
-
Display range
U0-67
AC drive state on DP card
7043H
BIT0: AC drive running
status
BIT1: Running direction
BIT2: Whether the AC
drive has a fault
BIT3: Target frequency
reached
BIT4 to BIT7: Reserved
BIT8 to BIT15: Fault code
U0-68
Speed of transmitting DP/0.01 Hz
Motor speed of transmitting DP/RMP
7044H
7045H
0.00Hz to Max.frequency
0 to rated motor speed
U0-69
U0-70
Communication card current display
-
Display range
U0-71
Communication card faulty state
-
Display range
U0-72
Motor SN
7046H
0: Motor 1
1: Motor 2
U0-73
AC drive output torque
7047H
0
.
1
%
U0-74
S set for function state display 2
(function 41-80)
10.RS485
card and RS485 communication protocol
Address Definition of Communication Parameters
This part is the content of communication, which is used to control the operation of the inverter,
the status of the inverter and the setting of related parameters. Read and write function code
parameters (some function codes cannot be changed, only for manufacturers to use or monitor):
function code parameter address marking rules.
The rules are represented by the function code group number and label as the parameter address:
High byte: F0~FF (group F), A0~AF (group A), 70~7F (group U) low byte: 00~FF
For example: F0-16, the communication address is F010H; among them, F0H represents the parameters
of the F0 group, and 10H represents the value of the serial number 16 in the function group convert
-
ed to hexadecimal;Note: Group F: neither can read parameters nor change parameters; Group U: can
only read, can not change parameters.
Some parameters cannot be changed when the inverter is in the running state; some parameters
cannot be changed regardless of the state of the inverter; when changing the function code parameters,
pay attention to the range, unit, and related instructions of the parameters.
In addition, because the EEPROM is frequently stored, the service life of the EEPROM will be
reduced. Therefore, some function codes do not need to be stored in the communication mode, but only
need to change the value in the RAM.
E.g: The function code F3-12 is not stored in the EEPROM, and the address is expressed as F30C;
the function code A0-05 is not stored in the EEPROM, and the address is expressed as A005;
This address indicates that it can only be used for writing to RAM, but not for reading. When read-
ing, it is an invalid address. For all parameters, command code 07H can also be used to implement
this function.
Command address
1000
Command function
*
Communication setting value (-10000~10000) (decimal)
MODBUS frequency command write (write only):
Notice:
The communication setting value is a percentage of the relative value, 10000 corre-
sponds to 100.00%, -10000 corresponds to -100.00%. For frequency-dimensioned data, the
percent
-
age is relative to the maximum frequency (F0-10).