Pzd2, Reference Value / Actual Value - BONFIGLIOLI ACTIVE Manual

10.2.5
In the PZD2, the master gives its reference value to the frequency inverter in the out-
put data set and gets information back about its actual value in the input data set.
The use of the reference/actual value channel is a function of the configuration set
(control system). The actual value is generated from the correct source in question as
a function of the control system used.
Note:
The distinction is made via the setting of the parameter
Profibus Reference
Profibus Reference
able. Both parameters are data set switch-over capable.
375 Rated frequency
390 Profibus Reference
Reference and actual values are transmitted in a standardized form. The standardiza-
tion is done by the variables being related to the reference value (
375 OR
The possible range = ±200 % = +32768 to -32768 = 0x8000 to 0x7FFF
Example: The setting of the parameter
With the reference value
the field weakening area above its reference frequency.
Example: The parameter
The reference value for the frequency inverter from PZD2 is included via the line set
point value. This reference value is combined with the internal set point value from
the reference frequency channel in the input of the ramp function. For the reference
frequency channel, see the operating instructions.
06/05
06/05

PZD2, reference value / actual value

The reference value and actual value are referenced to the parameter
Rated frequency
390 = 0,
390 ≠ 0,
Parameter
No. Description
Profibus reference
Reference value Binary
+ 100 %
- 100 %
value 60.00 Hz. The required reference frequency is 30.00 Hz. This means
50 % of the reference value, and thus the set point 8192 either 0x2000
has to be transmitted.
With the setting of the parameter
the value range of ± 200 Hz is possible.
operation mode 434
internal
set point
line
set point
375 OR the parameter
Rated frequency
Profibus Reference
10.00 Hz
0.00 Hz
390).
Standardization
Decimal
14
+ 2 16384
14
- 2 49152
Profibus Reference
Profibus Reference
390 a machine can also be operated in
Rated frequency
375 is set to a frequency of 50.00 Hz.
Profibus Reference
ramp set point
0
1
fmin
Profibus Reference
Profibus Reference
375 is the reference variable. If
390 is used as the reference vari-
Setting
Min. Max.
1000.00 Hz
999.99 Hz
Rated frequency
Hexadecimal
0x4000
0xC000
390 is the reference
390 to 100.00 Hz
refer to note
frequency
ramp
fmax
+
390.
390. If
Fact. Sett.
50.00 Hz
0.00 Hz
27
27