Attempting to connect PLC Delta DVP12SE to VFD LS SV075iG5A-4.
PLC COM2 LED is flickering but no response from Inverter
This is my first attempt to use Modbus to communicate PLC with Inverter or Servo drive.
Screen shots + .dvp file attached to this post.
Tying to figure this out and I will post the solution when I find it.
Any advice would be highly appreciated :nodi:
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Connection ( 2-wire )
Delta-PLC LS-VFD
S+ S+
S- S-
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LS VFD Parameters:
Drv: 3(RS485)
Frq: 7(RS485)
I59: 0(Modbus RTU)
I60: 2(Inverter Modbus Address)
I61: 3(Baudrate 9600)
I62: 0(No-Action Lost Mode)
I63: 1(1 Sec Time-out)
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PLC ladder used is a modified ladder from Delta's Application Examples of Programming page 12-5
Link for pdf ( http://www.deltronics.ru/images/manual/DVP-PLC-101_A_EN_20120417.pdf )
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Adjustments for ladder diagram:
* MODRD K1 H2102 K2 -----> MODRD K1 HA K2
Read Frequency from VFD to PLC
" H0x000A Output Frequency Address for LS VFD "
* MODWR K1 H2000 D10 -----> MODWR K1 H6 H2
Run FWD command to VFD
" Run Forward command H2 to Run Command Address H6 "
* MODWR K1 H2001 D11 -----> MODWR K1 H5 K4000
Set VFD Frequency to 40 Hz
" Set H5 Frequency reference to K4000=40Hz "
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Link for LS iG5A Inverter :
https://inverterdrive.com/file/LS-Starvert-iG5A-Manual
Communication Chapter 11
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PLC COM2 LED is flickering but no response from Inverter
This is my first attempt to use Modbus to communicate PLC with Inverter or Servo drive.
Screen shots + .dvp file attached to this post.
Tying to figure this out and I will post the solution when I find it.
Any advice would be highly appreciated :nodi:
-----
Connection ( 2-wire )
Delta-PLC LS-VFD
S+ S+
S- S-
-----
LS VFD Parameters:
Drv: 3(RS485)
Frq: 7(RS485)
I59: 0(Modbus RTU)
I60: 2(Inverter Modbus Address)
I61: 3(Baudrate 9600)
I62: 0(No-Action Lost Mode)
I63: 1(1 Sec Time-out)
-----
PLC ladder used is a modified ladder from Delta's Application Examples of Programming page 12-5
Link for pdf ( http://www.deltronics.ru/images/manual/DVP-PLC-101_A_EN_20120417.pdf )
-----
-----
Adjustments for ladder diagram:
* MODRD K1 H2102 K2 -----> MODRD K1 HA K2
Read Frequency from VFD to PLC
" H0x000A Output Frequency Address for LS VFD "
* MODWR K1 H2000 D10 -----> MODWR K1 H6 H2
Run FWD command to VFD
" Run Forward command H2 to Run Command Address H6 "
* MODWR K1 H2001 D11 -----> MODWR K1 H5 K4000
Set VFD Frequency to 40 Hz
" Set H5 Frequency reference to K4000=40Hz "
-----
Link for LS iG5A Inverter :
https://inverterdrive.com/file/LS-Starvert-iG5A-Manual
Communication Chapter 11
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