Section 7: Frequency converter control via RS-485 communication link
The address
of the re-
gisters
Description (meaning)
Mode
2006
OPERATION STATE
The v
alue of this register serves for identification
of the device state:
bit 0 - 1 =
the drive operates
bit 1 - 1 = one of the referencing-units of the
control panel (the frequency, the PI-control-
ler or the user's referencing-unit) is active
bit 2 - 1 = device is blocked
bit 3 - 1 = ready for restart (failure signal de-
leted but its cause has not disappeared)
bity 4,5,6 –
not used
bit 7 - CRC error in EEPROM
bity 8,9,10,11,12 - the failure code or warn-
ing (0= absence of failure)
bit 13 - failure code meaning: 0 = failure, 1 =
warning
bit 14 - a direction of operation (0 = to the
right, 1 = to the left).
bit 15 - 1 = identification run (started by par.
1.10)
Read only
THE REGISTERS CONNECTED TO PARAMETERS
40xxx
Parameters from group 0. they are similar to paramet-
ers on the control panel. e.g. register 40003 corres-
ponds to parameter 0.3
Read only
41xxx
Parameters from group 1. They are smilar to para-
meters on the control panel. e.g. register 41020 cor-
responds to parameter 1.20
CAUTION: Changing parameters is subject to the
same rules as when operating from the control panel.
It may be necessary to disable the blocking of para-
meters change (parameter 4.01 = register 44001) or
enter the appropriate access code (parameter 4.02 =
register 44002). Some system parameters can only
be changed when the system does not operate - see
Appendix A.
Read / write
42xxx
Parameters from group 2. They are similar to para-
meters on the control panel. e.g. register 42001 cor-
responds to parameter 2.01. REMARKS as above
Read / write
43xxx
Parameters from group 3. REMARKS as above
Read / write
44xxx
Parameters from group 4. REMARKS as above
Read / write
50
TWERD Power Electronics
