J
I've been struggling for a long time to get an Altivar 12 running through Modbus.
I've to admit that i don't really know what i'm doing, but been trying lots of things.
Main problem seems that my commands to enable the operation are not working.
1)
After power-up of the Altivar, the drive seems to be in state "4 Switched on":
000-Tx:01 03 0C 81 00 01 D7 72
001-Rx:01 03 02 00 33 F8 51
2)
Issuing a CMD 'ENABLE OPERATION'
002-Tx:01 06 21 35 00 0F D3 FC
003-Rx:01 06 21 35 00 0F D3 FC
Works without complaints, BUT nothing happens. Checking things:
004-Tx:01 03 21 35 00 01 9E 38
005-Rx:01 03 02 00 0F F8 40
006-Tx:01 03 0C 81 00 01 D7 72
007-Rx:01 03 02 00 33 F8 51
Shows that the drive is still in state "4 Switched on"
3)
Also trying to bring the state back to "3 Ready to switch on" does not result in any changes:
008-Tx:01 06 21 35 00 06 13 FA
009-Rx:01 06 21 35 00 06 13 FA
010-Tx:01 03 21 35 00 01 9E 38 (checking register)
011-Rx:01 03 02 00 06 38 46
012-Tx:01 03 0C 81 00 01 D7 72 (checking ETA)
013-Rx:01 03 02 00 33 F8 51
I've got absolutely no clue what i'm doing wrong. Do you have an idea?
Thanks in advance!
Jaap
I've to admit that i don't really know what i'm doing, but been trying lots of things.
Main problem seems that my commands to enable the operation are not working.
1)
After power-up of the Altivar, the drive seems to be in state "4 Switched on":
000-Tx:01 03 0C 81 00 01 D7 72
001-Rx:01 03 02 00 33 F8 51
2)
Issuing a CMD 'ENABLE OPERATION'
002-Tx:01 06 21 35 00 0F D3 FC
003-Rx:01 06 21 35 00 0F D3 FC
Works without complaints, BUT nothing happens. Checking things:
004-Tx:01 03 21 35 00 01 9E 38
005-Rx:01 03 02 00 0F F8 40
006-Tx:01 03 0C 81 00 01 D7 72
007-Rx:01 03 02 00 33 F8 51
Shows that the drive is still in state "4 Switched on"
3)
Also trying to bring the state back to "3 Ready to switch on" does not result in any changes:
008-Tx:01 06 21 35 00 06 13 FA
009-Rx:01 06 21 35 00 06 13 FA
010-Tx:01 03 21 35 00 01 9E 38 (checking register)
011-Rx:01 03 02 00 06 38 46
012-Tx:01 03 0C 81 00 01 D7 72 (checking ETA)
013-Rx:01 03 02 00 33 F8 51
I've got absolutely no clue what i'm doing wrong. Do you have an idea?
Thanks in advance!
Jaap