Profibus FX5U-A800
This manual shows configuration of master station (FX5-DP-M) with connected SLAVE stations.
"PL Profibus FX5U-A800 M ver2"
Wersja w j. polskim dostępna w załączniku
System configuration of master station (FX5-DP-M) with connected SLAVE stations
Software requirements:
GX Works3 Version 1.050C or later
Profibus Configuration Tool.
PROFIBUS wire preparation
PROFIBUS wire connects A8NDPV1 communication card with CPU module. The wire should comply with requirements shown below:
A800-E inverter configuration
To communicate two entities using PROFIBUS protocol, FDL address in inverter (SLAVE station) needs to be set. For this purpose values of parameters 1305 and 1307 should be change to 1.
Parametr no. |
Value |
1305 |
1 FDL Address |
1307 |
1 |
To change operating mode to network mode, value of parameters 79 and 340 should be set to 1.
Parametr no. |
Value |
79 |
1 |
340 |
1 |
After restart, inverter works in network mode.
GX Works3 configuration
Connect with PLC and read module configuration from PLC
Right-Click in any place of workspace and select Fix(S) function
In Project tree find and double-click Profibus Module Setting.
In PROFIBUS Configurator Task drag and drop PROFIBUS communication card from tab Global GSD Database to window PROFIBUS Network. A8NDPV1 communication card should work as Slave station
In window which will appear, set parameters as shown below
Drag and drop Telegram 1 to Project Slave Modules.
Remaining windows may be left unchanged.
In Module Parameter change Consistency to Enable
Select PROFIBUS Module Setting tab and then I/O Mapper
Add variables as shown below and click Update PROFIBUS Label
Convert program and write it to PLC
Communication tests
Open and refresh Watch window.
Watch window should look like shown below:
To enable communication, change value of bit bDataExchStartRequest_D to TRUE
It’s possible to set bits which are used to control the inverter from Watch window
StatusWord –Feedback from inverter
ControlWord – by setting bits of ControlWord, it’s possible to send request to the inverter.
SpeedActualValue – Current value of motor speed
SpeedValue – set the motor speed according to the formula shown below
f-output frequency
f_r-default frequency of the motor
In this example, the parameter SpeedValue=NSOLL_A
Inverter Control
Scheme of inverter’s states
To start inverter set bits as shown below
Control Word STW1
Step No |
1 |
2 |
3 |
4 |
5 |
|
Bit |
|
|
|
|
|
Contents |
0 |
0 |
0 |
0 |
1 |
1 |
ON |
1 |
0 |
0 |
1 |
1 |
1 |
No Coast Stop |
2 |
0 |
0 |
1 |
1 |
1 |
No Quick Stop |
3 |
0 |
0 |
0 |
0 |
1 |
Enable Operation |
4 |
0 |
0 |
0 |
0 |
0 |
Enable Ramp Generator |
5 |
0 |
0 |
0 |
0 |
0 |
Unfreeze Ramp Generator |
6 |
0 |
0 |
0 |
0 |
0 |
Enable Setpoint |
7 |
0 |
0 |
0 |
0 |
0 |
Fault Acknowledge |
8 |
0 |
0 |
0 |
0 |
0 |
Jog 1 ON (not used) |
9 |
0 |
0 |
0 |
0 |
0 |
Jog 2 ON (not used) |
10 |
0 |
0 |
0 |
0 |
0 |
Control By PLC |
11-15 |
0 |
1 |
1 |
1 |
1 |
- |
Status word read from inverter ZSW1
Step No |
1 |
2 |
3 |
4 |
5 |
|
Bit |
|
|
|
|
|
Contents |
0 |
1 |
0 |
1 |
1 |
1 |
Ready to Switch ON |
1 |
1 |
0 |
0 |
1 |
1 |
Ready To Operate |
2 |
0 |
0 |
0 |
0 |
1 |
Operation Enabled |
3 |
0 |
0 |
0 |
0 |
0 |
Fault Present |
4 |
0 |
0 |
1 |
1 |
1 |
Coast Stop Not Actived |
5 |
0 |
0 |
1 |
1 |
1 |
Quick Stop Not Actived |
6 |
0 |
1 |
0 |
0 |
0 |
Switching On Inhibited |
7 |
0 |
0 |
0 |
0 |
0 |
Warning Present |
8 |
0 |
0 |
0 |
0 |
1 |
Speed Error Within Tolerance |
9 |
0 |
1 |
1 |
1 |
1 |
Control Requested |
10-14 |
- |
- |
- |
- |
- |
- |
15 |
0 |
0 |
0 |
0 |
1 |
Pulses Enabled |
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