Commissioning
72
Hold menu
To call the menu, select:
"
Ñ
> Specialist > Set up 1 > Hold"
Function
Options
Info
Activate hold
Activation and subsequent
selection
• CAL
– On
– Off
• DIAG
– On
– Off
• PARAM
– On
– Off
• CPC
– On
– Off
Factory setting
On
Specify the menus for which the automatic hold
should be activated.
CAL:
Calibration
DIAG:
Service/diagnosis
PARAM:
Configuration menu
CPC on:
Hold is active if the assembly is in the
Service position.
Hold current
Options
• Last
• Fixed
• Min (0/4 mA)
• Max (22 mA)
Factory setting
Last
Specify which current value should be output
in the event of a hold.
Last:
The current value is "frozen".
Fixed
The value specified in the following field
is output in the event of a hold.
Min / Max:
The minimum or maximum
current value is output.
Hold output
0 ... 100%
Factory setting
0 %
Only available if "Fixed" was selected in the
previous field:
Specify the hold current. The value can be set
between 0 % = 0/4 mA and 100 % = 20 mA
Hold time
0 ... 999 s
Factory setting
010 s
The hold remains active during the hold dwell
period entered once the CAL, PARAM, DIAG
menus have been exited. During the hold delay
time, the "Hold" indicator flashes in the display.
Controller hold
Options
Freeze y (manipulated variable)
• On
• Off
Factory setting
Off
Specify whether the manipulated variable
(dosing) should be frozen during a hold.
On:
The last manipulated variable is output
during an active hold.
Off:
Dosing does not take place during a hold.
PWM or PFM relays remain in the dropped-out
state. An actuator drive is controlled until it is
closed.
!
Note!
The controller remains active if the
manipulated variable is output via an actuator
with feedback. It also reacts in a hold in the
event of a sudden change of position.
Hold
pH
7. 00
[E]
Auto Hold
Next
Select[¯ ®]
Param
Cal
Diag
Param
on
on
on
CPC
on
Summary of Contents for Topcal S CPC310
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