33
Customising the Process Area
Section 4-3
Table 23 Input Process Area with Motor Jogging Forward
Note 1
To jog the motor in reverse, set the JR bit.
4-2-6
Frequency Reference and Output Frequency Scaling
HSW and HIW are signed word registers. Using normal scaling, you will
therefore not be able to set HSW higher than 327.67 Hz (327.68 Hz in
reverse).
The
MX2
Inverter can however be set to operate in HF mode. Refer to the
MX2 User Manual section 3-6-24 for instructions on how to achieve this.
Doing this changes the scaling of HSW and HIW to 0.1 Hz. At 0.1 Hz scaling
you will be able to reach the full frequency range of the inverter by adjusting
HSW.
4-3
Customising the Process Area
The PROFIdrive device profile also gives you the capability to customise the
process area by mapping your choice of Modbus registers. Normally, P160,
P161, P170 and P171 are set to 0 so that STW, HSW, ZSW and HIW are
exchanged. The remaining parameters (P162 - P169 and P172 - P179) are
normally used to map additional Modbus registers into the cyclically
exchanged process areas. User parameters P160 - P169 configure the output
process area mappings where parameters P170 - P179 configure the input
process area mappings.
4-3-1
Double-word Frequency Reference and Output Frequency
HSW and HIW are signed word registers. Using normal scaling, you will
therefore not be able to set HSW higher than 327.67 Hz (327.68 Hz in
reverse) unless you are using the Inverter HF mode. You can however directly
use the Inverter DWORD registers F001 and d001 to increase the usable
range:
These two registers offer fixed 0.01 Hz scaling while still allowing you to con-
trol the Inverter through its full frequency range. When using the PROFIdrive
device profile, the F001 and d001 registers are also sign converted by the
Option Board. You can therefore use F001 and d001 as functional substitutes
for HSW and HIW.
Step 1
Set parameters P161 and P162 to 0001h and 0002h to map Modbus registers
0001h and 0002h (Function code F001) into output PZD2 and PZD3.
Step 2
Set parameters P171 and P172 to 1001h and 1002h to map Modbus registers
1001h and 1002h (Function code d001) into input PZD2 and PZD3.
Step 3
Set A001=3 to use F001 as the Inverter frequency source (Note that you can-
not make use of the Ovr bit in STW to take control of the Inverter when using
F001 to control the reference frequency).
Step 4
Restart the Inverter or reset the Option Board for the changes to take effect.
I111E-EN-02+3G3AX-MX2-RX-PRT+OperManual.book Seite 33 Donnerstag, 8. September 2011 11:53 11
Summary of Contents for 3G3AX-MX2-PRT-E
Page 6: ...vi...
Page 14: ...xiv Compliance with EC Directives...
Page 20: ...6 Introduction to PROFIBUS Section 1 3...
Page 36: ...22 How to mount the Option Board on the Inverter Section 2 3...
Page 42: ...28 Configuring the Network Section 3 2...
Page 70: ...56 Limitations Caused by Inverter Mode and Rating Selection Section 4 7...
Page 108: ...94 APPENDIX G...
Page 110: ...96 APPENDIX H...
Page 113: ...97...
Page 115: ......