C120(121)(122): Analog Input 1(2)(3) Configuration - Santerno DCREG2 Series User Manual

DCREG2
DCREG4
7.3.34 C120(121)(122): A
C... AnInxCfg
***
NOTE
NALOG
P C120(121)(122): - AnIn1(2)(3)Cfg
0 ... 11
R
0
D
C120: It defines the configuration of programmable analog input 1 (IN 1)
F
between terminals 11 and 13.
C121: It defines the configuration of programmable analog input 2 (IN 2) on
terminal 17.
C122: It defines the configuration of programmable analog input 3 (IN 3) on
terminal 19.
0:Excluded.
1:n loop add.ref. The reference to analog input IN x is an additional speed /
voltage reference.
2:I loop add.ref. The reference to analog input IN x is an additional current
reference.
3:Ramps reduct. The reference to analog input IN x is a signal for the decrease
per cent of the four ramp times programmed through parameters P030 ... P033.
4:tUP+ reduction. The reference to analog input IN x is a signal for the
decrease per cent of the rise ramp time of positive reference P030.
5:tUP- reduction.
decrease per cent of the rise ramp time of negative reference P032.
6:tDN+ reduction. The reference to analog input IN x is a signal for the
decrease per cent of the fall ramp time of positive reference P031.
7:tDN- reduction. The reference to analog input IN x is a signal for the
decrease per cent of the fall ramp time of negative reference P033.
8:Ext. curr.lim. The reference to analog input IN x is a current limit external
reference for bridge A only (DCREG2) or for both bridges A and B (DCREG4).
9:BrdgA ext.lim. The reference to analog input IN x is a current limit external
reference for bridge A only in DCREG4. (This function is available for DCREG4
only). Do no set it for DCREG2.
10:BrdgB ext.lim. The reference to analog input IN x is a current limit external
reference for bridge B only in DCREG4. (This function is available for DCREG4
only). Do no set it for DCREG2.
11:Fld. curr.lim. The reference to analog input IN x is a signal for the decrease
per cent of the motor rated current programmed through parameter C010
(IFldNom).
As for the external current limit, at 100% of the internal signal (M010, M011 or
M012) and if we suppose that limit parameters P050 ... P057 are programmed
for 100%, then the current limit will be the one set by C000 motor rated current,
eventually reduced by hardware limit (IMAX[T2]).
On the other hand, if the internal signal is under 100%, the current limit will
proportionally decrease. All this is shown in the diagram, where the polarity to be
applied to the external limit signal of both bridges is assumed to be positive (par.
P126(129)(132) (AnInxPol) at1:Positive only), and C000=50%, P050=50% and
P051=100%.
If more than one analogic input has been setup as an external current limit, then
the one with minimum limit resulting in absolute value is considered.
I 1(2)(3) C
NPUT
The reference to analog input IN x is a signal for the
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