Bell & Gossett P2001489 Integrated Technologic with Sensorless Control - Manual (Page 21)

* To use AI 54, configure parameters 6–24, 6–25, 6–27 and set 20–00 to Analog Input 54.
In order to set up the controller with a transducer that is used for external monitoring,
rather than feedback to the controller, set the following parameters:
Table 5: Parameter settings for using a wired sensor for external monitoring
Parameter number Description Set to
0-24 Display Line 3 Large Ext. 1 Feedback [Unit]
21-14 Ext. 1 Feedback Source Analog Input 53*
21–10 Ext. 1 Ref./Feedback Unit Select as appropriate for application.
For example, set to psi when using a
pressure transducer.
21–11 Ext. 1 Minimum Reference Minimum transducer feedback value.
For example, for a 0–40 psi DP
transducer, set to 0 psi.
21–12 Ext. 1 Maximum Reference Maximum transducer feedback value.
For example, for a 40 psi DP
transducer, set to 40 psi.
6–14* Terminal 53 Low Ref./Feedb. Value Minimum transducer feedback value.
For example, for a 0–40 psi DP
transducer, set to 0 psi.
6–15* Terminal 53 High Ref./Feedb. Value Maximum transducer feedback value.
For example, for a 40 psi DP
transducer, set to 40 psi.
6–17* Terminal 53 Live Zero Disabled
* To use AI 54, configure parameters 6–24, 6–25, 6–27 and set 21–14 to Analog Input 54.
Speed control with external potentiometer
This setup allows the speed of the motor to be controlled via an external potentiometer.
In order to use this setup the analog input must be configured as a voltage input.
Figure 11: Terminal connections for external speed reference from a potentiometer
To set up the controller for speed control with an external potentiometer, set the
following parameters:
Parameter number Description Set to
1-00 Configuration Mode Open Loop
3-15 Reference 1 Source Analog Input 53
6-10 Terminal 53 Low Voltage* 0 V
6-11 Terminal 53 High Voltage* 10 V
6-14 Terminal 53 Low Ref./Feedb. Value 0
Electrical Installation
Integrated Technologic ® with Sensorless Control INSTRUCTION MANUAL 19