Preliminary User Manual UMAX023241 - Version: 1.1 15-63
2330h
Ramp Up
and 2331h
Ramp Down
setpoints are in milliseconds, and the step size of the
output change will be determined by taking the absolute value of the output range and dividing it by
the ramp time.
Object 7300h (AO Output PV) can be used to control the proportional outputs.
The relationship between the Process Value (input) and the Field Value (output) is a linear one, as
shown in Figure 5. However, the output will actually use the AO Scaling FV objects as limits to the
drive, such that the output will hold at the minimum and maximum FV points, as shown in the figure.
Figure 7: Analog Output Linear Scaling PV to FV
The
Control Source
object 2340h together with
Control Number
object 2341h determine which
signal is used to drive the output. For example, setting
Control Source
to
Quadrature Encoder Input
Measured
and
Control Number
to (
1)
will connect signal measured from Quadrature Encoder Input
1 to the output in question. The input signal is scaled per input type range between 0 and 1 to form
control signal. Outputs respond in a linear fashion to changes in control signal.
In addition to the
Control Source
object, the controller offers two more options that help increase
its versatility –
Enable Source/Number/Response
and
Override
Source/Number/Response
set
of objects (2350h/51h and 2360h/61h/62h).
The
Enable Source
object together with
Enable Number
object determine the enable signal for the
output in question. The
Enable Response
object is used to select how output will respond to the
selected Enable signal.
Enable Response
object options are listed in Table 10.
Table 10: Enable Response Options
0 Enable When On, Else Shutoff
1 Enable When On, Else Rampoff
2 Enable When On, Else Ramp To Max
3 Enable When On, Else Ramp To Min
4 Enable When On, Else Keep Last Value
5 Enable When Off, Else Shutoff
6 Enable When Off, Else Rampoff
7 Enable When Off, Else Ramp To Max
8 Enable When Off, Else Ramp To Min
9 Enable When Off, Else Keep Last Value
