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7/22/2019 VFD com (XGB-iG5A)_Modbus
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LSIS PLC/DriveLSIS PLC/Drive
CommunicationCommunicationfor XGB and Drive (iG5A)for XGB and Drive (iG5A)
-- ModbusModbus RTU protocolRTU protocol
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Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
Configuration
Diagnosis
XG5000
XG-PD
Drive Setup
Configuration
RS-485 (Modbus communication)
Baud rate: 9600, Data bit: 8, Stop bit : 1, Parity bit : None
XGB
RS-485
Buil t-in Cnet
iG5A
Station: 1
+
-
S+
S-
S+
S-
iG5A
Station: 2
Wiring Diagram
Note that baud rate and stop/parity bit are selectable in I/O group.
* I/O group: I61 baud rate, I65: parity/stop bit setting.
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Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
Drive parameter setting
XGB Parameter sett ing: XG-PD
Set up each drive communication-concerning parameter as follows.
For iG5A (station: 1)
* DRV-03 [Drive mode]: 3 [RS-485]
* DRV-04 [Freq. mode]: 7 [RS-485]* I/O 59 [Communication protocol] : 0 [Modbus RTU]
* I/O 60 [VFD station number]: 1
* I/O 61 [communication speed]: 3 (9600bps)
For iG5A (station: 2)
* DRV-03 [Drive mode]: 3 [RS-485]
* DRV-04 [Freq. mode]: 7 [RS-485]* I/O 59 [communication protocol]: 0 [Modbus RTU]
* I/O 60 [VFD station number]: 1
* I/O 61 [communication speed]: 3 (9600bps)
For XGB communication parameter sett ing, XG-PD (Network Manager) is used.
Af ter running XG-PD, select [Online][Connect ].
When connected, select [Online][Read IO Information].
Diagnosis
XG5000
XG-PD
Drive Setup
Configuration
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XGB parameter setting: XG-PD
Double
click
After setting is
done, click
[P2P].
Diagnosis
XG5000
XG-PD
- XGB Setup
Drive Setup
Configuration Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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Double
click
XGB parameter setting: XG-PD
Diagnosis
XG5000
XG-PD
- P2P
Drive Setup
Configuration Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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P2P parameter setting: iG5A (station 1) Write request
Double
click
ClickSlave
address
Condit ional flag: M0000This request frame is sent from XGB
at M0 bit r ising edge.
Data type/Data size
This request frame is to wr ite 4 word
data to iG5A.
Diagnosis
XG5000
XG-PD
- P2P
Drive Setup
Configuration Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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P2P parameter setting: iG5A (station 1) Write request
Modbus corresponding addresses of iG5A are acquired by the following formula.
[Modbus address] = [iG5A address] 1
Modbus word output area is from 0x40000. Therefore, [0x0005] is to be [0x40004].Here D0000 is assigned to 0x40004, which means D0 data value is sent to ref. Freq. area.
In the previous slide, 4 words are to be sent. Therefore,
D0 for Reference Frequency
D1 for Run command (D1.0 bit is on iG5A stop; D1.1 bit is on iG5A forward run, etc).D2 for ACC time
D3 for DEC time
Diagnosis
XG5000
XG-PD
- P2P
Drive Setup
Configuration Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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P2P parameter setting: iG5A (station 1) Read request
ClickSlaveaddress
Condit ional flag: M0001This request frame is sent from XGB at M1 bit r ising edge.
Data type/Data size
This request frame is to read 8 word data from iG5A.
Note that data size should be less than or equal to 8. If not, iG5A does not respond
properly.
Diagnosis
XG5000
XG-PD
- P2P
Drive Setup
Configuration Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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P2P parameter setting: iG5A (station 1) Read request
Modbus word input area is from 0x30000. Therefore, [0x0007] to be [0x30006].
Here D0020 is assigned to 0x30006, which means ACC time is sent to D20.
In the previous s lide, 8 words to be sent from drive to XGB. Therefore,
D20 for ACC time; D21 for DEC time, D22 for Output Current; D23 for Reference Frequency;
D24 for Output vol tage; D25 for DC Link vol tage; D26 for Output power;
D27 for dr ive status (D27.0 bit is on iG5A stop; D27.1 bit is on iG5A forward run, etc).
Diagnosis
XG5000
XG-PD
- P2P
Drive Setup
Configuration Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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P2P parameter setting: iG5A (station 2) Write request
ClickSlaveaddress
Condit ional flag: M0002
This request frame is sent from XGB during M2 bit rising edge. Data type/Data size
This request f rame is to wri te 4 word data to iG5A.
Data assignment method: the same as iG5A (station 1)
D100 for Reference Frequency
D101 for Run command (D1.0 bit i s on iG5A stop; D1.1 bit is on iG5A forward run, etc).D102 for ACC time
D103 for DEC time
Diagnosis
XG5000
XG-PD
- P2P
Drive Setup
Configuration Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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P2P parameter setting: iG5A (station 2) Read request
ClickSlaveaddress
Conditional flag: M0003
This request frame is sent from XGB during M3 bit rising edge.
Data type/Data size
This request frame is to read 8 word data from dr ive to XGB.
Data assignment method: the same as iG5A (station 1)
D120 for ACC time; D121 for DEC time, D122 for Output Current; D123 for Reference Frequency;
D124 for Output voltage; D125 for DC Link vol tage; D126 for Output power;
D27 for dr ive status (D27.0 bit is on iG5A stop; D27.1 bit is on iG5A forward run, etc).
Diagnosis
XG5000
XG-PD
- P2P
Drive Setup
Configuration Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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XG-PD download/Link enable
Af ter l ink enable,
select [Online][Reset].
Diagnosis
XG5000
XG-PD
- Down & Link
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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XG5000 Programming: Part I
For programming, please refer to XG5000 program after opening i t.
Diagnosis
XG5000
- Programming
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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XG5000 Programming: Part II
Diagnosis
XG5000
- Programming
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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XG5000 Programming: Part III
[View][Devices/Variables] or other item to see its variable or comment.
Diagnosis
XG5000
- Programming
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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XG5000 Programming: Part IV
Diagnosis
XG5000
- Programming
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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XG5000 Programming: Part V
Diagnosis
XG5000
- Programming
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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iG5A (#1) Control: Set Ref. Freq. and make it run forward
Reference frequency is set as 12.34Hz.
Diagnosis
XG5000
- Monitoring
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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iG5A (#1) Control: Set ACC/DEC time of station 1
iG5A reference frequency is set as 12.34Hz. Its status is FWD Run. ACC and DEC time
is set as 1.0 and 2.0 sec, respectively. Now lets moni tor iG5A.
Diagnosis
XG5000
- Monitoring
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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iG5A (#1) Monitoring: operation information
iG5A is running as we set in the previous slide.
D27.1 bit means its operation status is FWD Run.
Diagnosis
XG5000
- Monitoring
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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iG5A (#2) Control: Ref. Freq., Operation command and ACC/DEC time
Station 2 reference frequency: 43.21Hz
Station 2 operation command: Reverse running
Station 2 ACC time: 3.0 sec
Station 2 DEC time: 4.0 sec
Diagnosis
XG5000
- Monitoring
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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iG5A (#2) Monitoring: operation information
iG5A is running as we set in the previous slide.
D27.1 bit means its operation status is REV Run.
Diagnosis
XG5000
- Monitoring
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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iG5A (#1 & #2) Communication Status
Click [Variable Monitor ing] icon:
Now there is no error in either station 1 or 2.
Diagnosis
XG5000
- Monitoring
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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iG5A (#1 & #2) Communication Status
When station 1 is turned off or disconnected from network, its error flags are increased.
Af ter the problem is recovered, error-concerned f lags are not increased but hold thei r
values. Note that L relay is latched.
Diagnosis
XG5000
- Monitoring
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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System diagnosis: XG-PD
In XG-PD, select [Online][System Diagnosis] where you are able to see comm. Status.
Right-mouse
click
Select [Channel 2] and click [Start] then
you wil l see its communication frame.
Even though XGB has no RTC, but i t shows
time stamp when the transmission/reception
frame pass through the comm. port.This is important because in 1:N comm. In
RS-485 (half-duplex) system, transmission
and reception frame should be interlocked.
And a user could know the best poss ib le
condit ional flag to send each frame by this
time stamp.
Diagnosis
XG5000
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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System diagnosis: XG-PD
1 2
3
4
(1) If there is unknown in Result, the frame is wrong.
(2) It shows when each frame passes through the communication port.
(3) When the t ransmission frame is sent to iG5A (station 1) at 0:00:02:770 (2.770sec after
monitoring start), the reception frame is delivered to XGB from station 1 after 0.03sec later.
(4) It shows one cycle in th is system composed of 8 frames.
Write request to #1 (M0 bit )Write response from #1 Read request to #1 (M1 bit )Read response from #1Write request to #2 (M2 bit ) Write response from #2Read request to #2 (M3 bit ) Read response from #2Note that every transmission frame is sent with 200ms period.
Diagnosis
XG5000
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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System diagnosis: XG-PD
In XG-PD, select [Online][System Diagnosis] where you are able to see comm. Status.
Right-mouse
click
Select [P2P Service] and click [Multip le
Reading] then you will see comm. status.
Whenever an communication error occurs,
its error count w ill increase.
Diagnosis
XG5000
XG-PD
Drive Setup
Configuration
Communication with VFD (Variable Frequency Drive)Communication with VFD (Variable Frequency Drive)
Application Solution
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