Nidec Unidrive M600 Series - Page 207

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Unidrive M Regen Design Guide 207
Issue Number: 4
Figure 9-12 Menu 9 logic diagram: Motorized pot and binary sum
9.9.2 Motorised pot
If Motorised Pot Reset (09.028) = 1 then the motorised pot is disabled and held in its reset state with Motorised Pot Output (09.003) = 0.0 %.
If Motorised Pot Reset (09.028) = 0 the motorised pot is enabled even if Motorised Pot Destination (09.025) is not routed to a valid parameter.
The sample rate of the motorised pot is always 4 ms.
When the motorised pot is active Motorised Pot Output (09.003) can be increased or decreased by setting Motorised Pot Up (09.026) or Motorised
Pot Down (09.027) to 1 respectively. If both Motorised Pot Up (09.026) and Motorised Pot Down (09.027) are 1 then Motorised Pot Output (09.003)
is increased. The rate of change of Motorised Pot Output (09.003) is defined by Motorised Pot Rate (09.023) which gives the time to change from 0 to
100 %. The time to change from -100 % to 100 % is Motorised Pot Rate (09.023) x 2. If Motorised Pot Bipolar Select (09.022) = 0 then Motorised Pot
Output (09.003) is limited in the range 0.00 % to 100.00 %, otherwise it is allowed to change in the range from -100.00 % to 100.00 %.
Motorised Pot Mode (09.021) defines the mode of operation as given in the table below.
Motorised Pot Scaling (09.024) introduces a scaling factor at the output of the motorised pot before the output is routed to the destination. If Motorised
Pot Scaling (09.024) Motorised Pot Scaling (09.024) > 1.000 the output will exceed the range of the destination parameter, and so the destination
parameter will be at its maximum or minimum before the output of the motorised pot reaches the limits of its range.
Motorised Pot Mode (09.021) Motorised Pot Output (09.003)
Motorised Pot Up (09.026) and
Motorised Pot Down (09.027) active
0 Reset to zero at power-up Always
1 Set to power-down value at power-up Always
2 Reset to zero at power-up When Drive Active (10.002) = 1
3 Set to power-down value at power-up When Drive Active (10.002) = 1
4 Reset to zero at power-up and when Drive Active (10.002) = 0 When Drive Active (10.002) = 1
09.030
Binary Sum
Logic Twos
09.029
Binary Sum
Logic Ones
(LSB)
09.031
Binary Sum
Logic Fours (MSB)
09.032
Binary Sum
utputO
??.???
Any
unprotected
bit
parameter
??.???
09.033
Binary Sum
Logic Destination
S
09.024
Motorized
Pot
Scaling
09.025
Motorized Pot
Destination
09.023
Motorized
Pot Rate
??.???
Any
unprotected
variable
parameter
??.???
09.027
Motorized Pot
Down
09.026
Motorized Pot
Up
M
09.003
Motorized Pot
Output
09.022
Motorized
Pot Bipolar
Select
09.021
09.028
Motorized Pot
Reset
Motorized Pot.
Mode
+
+
09.034
Binary Sum
Offset
Function disabled if set
to a non valid destination
Function disabled if set
to a non valid destination
mm.ppp
mm.ppp
Key
Read-write (RW)
parameter
Read-only (RO)
parameter
Input
terminals
Output
terminals
X
X
X
X
The parameters are all shown in their default settings