■ Pressure control
─ Target value:
→ Via bus, if the activation bit is set
→ Via parameters in the 5.4.2
Pressure control
menu→ Via AII1.02, if set in the 5.5.1
Current signal AII1.02
menu
─ Actual value:
→ Via bus, if the activation bit is set
→ Via AII1.02 if
Current signal AII1.02
is set in the 5.5.1 menu
and
Pressure control
is selected in the 5.4.2 menu
→ p1, p2 gauge or vacuum pressure version, if
Pressure control
is selected in the 5.4.2
menu
→ dp, if
Pressure control
is selected in the 5.4.2 menu
■ External speed control
─ Target value:
→ Via bus, if the activation bit is set
→ Via AII1.02 if
Current signal AII1.02
is set in the 5.5.1 menu
■ External values control
─ Target value:
→ Via bus, if the activation bit is set
→ Via parameters in the 5.4.3
External values control
menu
─ Actual value:
→ Via AII1.02 if Current signal AII1.02 is set in the 5.5.1 menu
Locking the operating modes:
■ The
Fixed speed
and
Pressure control
operating modes can always be selected, regardless of
the setting of the AII1.02 current signal
■
External speed control
operating mode can be only selected when the AII1.02 external ana‐
logue output is active and the
Speed
variable type is set
■
External values control
operating mode can only be selected when the AII1.02 external ana‐
logue input is active and the
Other
variable type is set. If the operating mode can be selected,
the system displays the 5.4.3
External values control
menu
■ Settings in the 5.5.1
Current signal AII1.02
menu are only possible when the signal is not used
in the currently selected operating mode.
8.6.1 Current signal AII1.02
The machine can be controlled by a current signal at the AII1.02 analogue input. This current sig‐
nal may represent the
Pressure
,
Speed
and
Other
values. For the
Other
value, you can set signal
scale and its resolution.
Locking the AII1.02 current signal:
■ You can deactivate or modify AII1.02 only when the AII1.02 current input is not actually used in
a control mode.
─ Neither
External speed control
nor
External values control
operating mode are set.
─
Pressure control
and AII1.02 are not set as source.
Precondition Access level 2 is activated.
The operating mode is displayed.
The
Fixed speed
or
Pressure control
mode is set in the 5.4
<Configuration – Operating modes>
menu.
8 Initial Start-up
8.6 Operating modes in frequency-controlled machines
92
Service Manual Controller
SIGMA CONTROL 2 BLOWER ≥ 2.5.3 No.: 901700 10 E
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