IM-P343-35 CTLS Issue 5
57
SP500 Electropneumatic Smart Positioner
TS2 - software configured travel switch 2 (normally closed)
•
Programming notes
The switching point can be set as a percentage of the valve travel between 0 to 100%. A value can be set
outside the limits of the travel settings (MIN-T) and (MAX-T). Initially OFF will be displayed indicating that
the switch is not set. To set a switching point press and keys to alter the displayed value.
Press
key to accept the displayed value and return to TUNE in the main menu.
Commissioning notes
Travel switch 2 (TS2) is normally closed. External wiring should be made between terminals 3 (+) and
4 (-). The value set is a % of valve travel. At the set value the switch will open. The status of the switch
will be shown on the LCD (refer to Figure 69).
Software configured travel switches can be used to remotely indicate valve position or to operate
warning devices, fans, stirrers, motors or other process equipment via a secondary switching device.
Note: If the switch is in its 'off' status it will be an open circuit.
Fig. 69 TS2 Travel switch 2 (normally closed)
Switch
open
Switch
closed
Travel
100%
0%
50%
Signal
Note:
Software configured travel
switches can be set within the
range 0% to 100% of full travel
irrespective of any travel limit
settings.
To Next Page
Loading...
