Emerson MICRO MOTION 1500 - Page 66

58 Micro Motion
®
Model 1500 Transmitters with the Filling and Dosing Application
Configuring the Filling and Dosing Application
• To configure Channel A as a three-level output, use the Analog Output panel and:
-Set
Primary Variable to Primary Valve.
- Ensure that
Enable 3 Position Valve is enabled.
- Specify the
Setpoint, which is the mA output level that sets the valve to closed partial.
- Specify the
Closed Value, which is the mA output level that sets the valve to closed
full. This value must be between 0 and 4 mA, and should be set according to the
requirements of the valve.
Figure 7-4 Discrete IO panel
Table 7-1 Output requirements and assignments
Fill type Output requirements Options Assignment
One-stage discrete One discrete output Channel A Primary valve
Channel B Primary valve
One-stage discrete
with purge cycle
Two discrete outputs Channel A
Channel C
Primary valve; 3-position valve disabled
Secondary (purge) valve
Channel B
Channel A
Primary valve
Secondary (purge) valve with 3-position valve
disabled
Channel B
Channel C
Primary valve
Secondary(purge) valve
Two-stage discrete Two discrete outputs Channel A
Channel C
Primary valve with 3-position valve disabled
Secondary valve
Channel B
Channel A
Primary valve
Secondary valve with 3-position valve disabled
Channel B
Channel C
Primary valve
Secondary valve
Three-position analog One three-level output Channel A Primary valve with 3-position valve enabled
Three-position analog
with purge cycle
One three-level output and
one discrete output
Channel A
Channel C
Primary valve with 3-position valve enabled
Secondary (purge) valve