Advanced Energy THYRO-AX Bedienungsanleitung Seite 78

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All setpoints are added up taking into consideration any preceding
modifying symbols. The prerequisite for the influence of a setpoint on
the overall setpoint is that it is approved through the setpoint enable
register.
• setpoint 1 analog signal: (X2.4, X2.3 ground) 0-20 mA as default
settings
• setpoint 2 analog signal: (X2.11, X2.3 ground) 0-5 V as default
settings
• setpoint 3 digital signal: setpoint from higher-level system such as a
PC with USB or via the optional bus interface.
• setpoint 4 digital signal: setpoint from digital potentiometer of the
control panel
The setpoint inputs 1 and 2 are two electrically identical analog inputs
for current or voltage signals with a downstream A/D transformer
(resolution 0.025% of end value). The following signal ranges can be
configured using the touch display, Thyro-Tool AX and bus:
= circa 250 Ω) maximum 24 mA
0(4) - 20 mA (R
i
0 - 5 V (R = circa 8,8 kΩ) maximum 12 V
i
0 - 10 V (R = circa 5 kΩ) maximum 12 V
i
The setpoint signal can be adjusted by the user to the procedure con-
troller or automation system.
To do this the start and end points of the control characteristics are
altered. All COTS signals can be used.
If the power controller finds itself in a limitation (U
shown on the display (see chapter Events).
, I , P ) this is
max max max
Set point
Set point configuration local
Set point 1
analog signal
Set point 2
analog signal
Set point 3
bus interface
Set point 4
digital pot.
Set point configuration remote
(or alternative)
Set point 1
analog signal
Set point 2
analog signal
Set point 3
bus interface
Set point 4
digital pot.
FIG. 6 SET POINT INPUTS AND EFFECTIVE SET POINT
CONFIGURE OVERALL SETPOINTS
Two configurations for the overall setpoint are possible which each
allow optional combinations of setpoints. In this way an alternative
configuration can be selected quickly by connecting X22.1 to ground.
This allows a manual/automatic switching to be realized
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Effective
total set
point value