Trane TR200 - Main Menu - Application Functions - TR200 - Group 22

21-64 Ext. 3 Dif. Gain Limit
Range: Function:
5.0 N/A* [1.0 - 50.0 N/A] See par.21-24
Ext. 1 Dif. Gain Limit for details.
Main Menu - Application Functions - TR200 - Group 22
This group contains parameters used for monitoring TR200 applications.
22-00 External Interlock Delay
Range: Function:
0 s* [0 - 600 s] Only relevant if one of the digital inputs in parameter group 5-1* has
been programmed for
External Interlock [7]. The external interlock timer
will introduce a delay after the signal has been removed from the digital
input programmed for External Interlock, before a reaction takes place.
22-2* No-Flow Detection
The adjustable frequency drive includes functions for detecting if the load conditions in the system allow the
motor to be stopped:
*Low Power Detection
*Low Speed Detection
One of these two signals must be active for a set time (par.22-24
No-Flow Delay) before selected action takes
place. Possible actions to select (par.22-23
No-Flow Function): No action, Warning, Alarm, Sleep Mode.
No Flow Detection:
This function is used for detecting a no flow situation in pump systems where all valves can be closed. Can be
used both when controlled by the integrated PI controller in the adjustable frequency drive or an external PI
controller. The actual configuration must be programmed in par.1-00
Configuration Mode.
Configuration mode for
- Integrated PI Controller: Closed-loop
- External PI Controller: Open-loop
Parameter Description
4-184 TR200 Programming Guide