EC590
Function parameters description
EC590
Function parameters description
-
55
-
-
56
-
Function Code
Parameter Name
Default
FA-26
Detection level of PID
feedback loss
Setting Range
0.0%
0.0%: No detection
0.1% to 100.0%
FA-27
Detection time of PID
feedback loss
0.0s
0.0s to 20.0s
FA-26 and FA-27 define the PID feedback loss detection function. When PID feedback is smaller
than the value set in FA-26 for time set in FA-27, AC drive detects Err31 and acts as selected in ten
thousands position in F9-49.
Function Code
Parameter Name
Default
FA-28
Selection of PID operation
at stop
Setting Range
0
0: Stop and do not operate
1
:
Compute shut
down
FA-28: This function parameter determines whether to continue PID operation when the AC
drive stops.
Serial Comms.
We have the serial communications options, Modbus,
Profibus-DP,
CANlink and CANopen.
F0-28 has to be set correctly to engage the selected serial communication card if Modbus, Profibus-
DP or CANopen is selected. F0-28 need not be set if CANlink is selected.
■
Function Code
Parameter Name
Default
F0-28
Serial port communication
protocol
Setting Range
0
0: Modbus protocol
1: PROFIBUS-DP protocol or CANopen
protocol
To set frequency reference to 10000, host computer sends write command 01 06 10 00 27 10 97
36 (hexadecimal). In the command,
01H (settable): AC drive address
06H: write command
1000H: frequency reference address
2710H: frequency reference (converted into decimal 10000)
9736H: CRC check
●
●
●
●
●
Master Command
Slave Response
ADDR
01H
CMD
06H
Parameter address high bits
10H
Parameter address low bits
00H
Data content high bits
27H
Data content low bits
10H
CRC high bits
97H
CRC low bits
36H
ADDR
CMD
Parameter address high bits
Parameter address low bits
Data content high bits
Data content low bits
CRC high bits
CRC low bits
01H
06H
10H
00H
27H
10H
97H
36H
Note
Frequency reference range set via communication is -10000 to 10000, corre
-
sponding to -100.00% to 100.00%.
●
-
100.00% corresponds to negative max. frequency.
●
0.00% corresponds to min. frequency.
●
100.00% corresponds to max. Frequency.
Suppose that F0-10 = 50 Hz, if frequency reference in the write command is
2710, converted into decimal 10000. The input frequency reference is
50 x 100% = 50 Hz.
5.2.2 Setting Auxiliary Frequency Reference
Auxiliary frequency reference has the same nine setting modes as main frequency reference does.
F0-04 selects a proper channel to set auxiliary frequency reference.
Function Code
Parameter Name
Default
F0-04
Main
frequency
reference
setting
channel
selection
Setting Range
0
0
:
Digital
setting
(
revised
value
is
not
cleared
after
power
off
)
1
:
Digital
setting
(
revised
value
is
cleared
after
power
off
)
2
:
AI1
3
:
AI2
4
:
Keyboard
potentiometer
5
:
Pulse
setting
(
S5
)
6
:
Multi
-
reference
7
:
Simple
PLC
8
:
PID
reference
9
:
Communication
setting