15P0059B3 DCREG2
USER MANUAL DCREG4
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7.2.57 P120: SPEED / VOLTAGE MAIN INPUT POLARITY
This parameter sets the polarity allowed for REF main reference between
terminals 5 and 7 AFTER applying Gain and Bias operators. This is true only if
this input is a speed / voltage reference, i.e. when the digital input programmed
for the 6:Slave function is open (see par. C130 … C135).
0:Bipolar. Bipolar reference.
1:Positive only. Positive reference only.
2:Negative only. Negative reference only.
If you program a unipolar REF reference, the reference of the opposite polarity
will be shut and considered as equal to zero.
7.2.58 P121: SPEED / VOLTAGE MAIN INPUT BIAS
This parameter represents, as a percentage of the max. value corresponding to
10V, the reference value obtained when the signal applied to the REF main input
between terminals 5 and 7 is equal to zero. Signal V
2
obtained when applying
the Gain and Bias operators to signal V
1
is given by the following formula:
100
121
10
100
122
12
PP
VV
This is true if this signal is a speed / voltage reference, i.e. when the digital input
programmed for the 6:Slave function is open (see par. C130 … C135).
7.2.59 P122: SPEED / VOLTAGE MAIN INPUT GAIN
This parameter represents the amplification which is internally applied to the
REF main reference signal between terminals 5 and 7, before being summed to
the Bias. Signal V
2
obtained when applying the Gain and Bias operators to
signal V
1
is given by the following formula:
100
121
10
100
122
12
PP
VV
This is true if this signal is a speed / voltage reference, i.e. when the digital input
programmed for the 6:Slave function is open (see par. C130 … C135).
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