20 Issue
Number:
3
will retain all values in menu 1 through menu 19 when the Unidrive is
next powered up.
5.6.2
Saving UD70 Parameters (Menu 20 and Internal)
To initiate the non-volatile save sequence for these parameters, set
#17.19 to 1. The UD70 will then store menu 20 and the internal 32-bit
parameters, clear #17.19 back to zero and completely reset itself.
All menu 20 parameters and internal 32-bit parameters (_Pxx% and
_Qxx%) are stored in the FLASH memory of the UD70. If the Unidrive
Profibus-DP interface is replaced, the menu 20 parameters may need to
be re-configured. If the replacement module has been used before, the
stored values may be different from the normal default settings.
The UD70 can also be configured to store these parameters
automatically when the Unidrive powers down. The store routine is
triggered when an under-voltage (UU) trip occurs. Set #17.20 to 1,
store the Unidrive parameters and reset the UD70 to enable this
feature.
5.7 Mapping
Conflicts
When the mapping parameters for the Profibus-DP cyclic channels are
set, care must be taken to ensure that there are no clashes with the
mapping of the analogue and digital inputs within the Unidrive. The
Unidrive Profibus-DP interface will not indicate any conflict of mapping
parameters. This only applies to analogue and digital inputs, and OUT
data on the Profibus-DP network.
If a numerical parameter is written to from two different sources, the
value of this parameter will depend entirely upon the sca
n times for the
analogue or digital input and the Profibus-DP network. Further
confusion may be caused due to the update rate of the display. A
parameter may appear to be steady at a particular value, but
occasionally glitch in the value will be seen. In reality, this value may
be changing continuously, leading to erratic behaviour.
Function Mapping
Parameter
Function Mapping
Parameter
Analogue I/P 1
#7.10
Logic O/P 2
#9.20
Analogue I/P 2
#7.14
Motorised Pot O/P
#9.25
Analogue I/P 3
#7.18
Binary Summer
#9.33
Digital I/P 1
#8.10
Comparator 1 O/P
#12.07
Digital I/P 2
#8.13
Comparator 2 O/P
#12.17
Digital I/P 3
#8.16
Reference Input
#13.06
Digital I/P 4
#8.19
PID O/P
#14.16
Digital I/P 5
#8.21
Cyclic OUT Word 1
#20.06
Digital I/P 6
#8.23
Cyclic OUT Word 2
#20.01
Logic O/P 1
#9.10
Cyclic OUT Word 3
#20.02
Ensure that each Unidrive parameter in the table above has a different
value programmed. A value of 0 will disable analogue and digital
inputs, and -1 will disable the cyclic data channels.