Trane TR200 Series Programming Manual page 220

22-45 Setpoint Boost
Range:
0 %* [-100 - 100 %]
22-46 Maximum Boost Time
Range:
60 s* [0 - 600 s]
22-6* Broken Belt Detection
The Broken Belt Detection can be used in both closed and open loop systems for pumps, fans and compressors.
If the estimated motor torque is below the broken belt torque value (par.22-61
frequency converter output frequency is above or equal to 15 Hz, the broken belt function (par.22-60
Function) is performed
22-60 Broken Belt Function
Selects the action to be performed if the Broken Belt condition is detected
Option:
[0] * Off
[1] Warning
[2] Trip
NOTICE
Do not set par.14-20 Reset
Doing so will cause the drive to continuously cycle between running and stopping when a broken belt condition is
detected.
NOTICE
If the drive is equipped with a constant speed bypass with an automatic bypass function that starts the bypass if the
drive experiences a persistent alarm condition, be sure to disable the bypass's automatic bypass function, if [2] Trip is
selected as the Broken Belt Function.
22-61 Broken Belt Torque
Range:
10 %* [0 - 100 %]
TR200 Programming Guide
Function:
Only to be used if par.1-00
and the integrated PI controller is used. In systems with e.g. constant
pressure control, it is advantageous to increase the system pressure be-
fore the motor is stopped. This will extend the time in which the motor
is stopped and help to avoid frequent start/stop.
Set the desired over pressure/temperature in percentage of set point for
the pressure (Pset)/temperature before entering the Sleep Mode.
If setting for 5%, the boost pressure will be Pset*1.05. The negative val-
ues can be used for e.g. cooling tower control where a negative change
is needed.
Function:
Only to be used if par.1-00
and the integrated PI controller is used for controlling the pressure.
Set the maximum time for which boost mode will be allowed. If the set
time is exceeded, Sleep Mode will be entered, not waiting for the set
boost pressure to be reached.
Function:
The drive will continue to run, but activate a Broken Belt Warning [W95].
A drive digital output or a serial communication bus can communicate a
warning to other equipment.
The drive will stop running and activate a Broken Belt alarm [A 95]. A
drive digital output or a serial communication bus can communicate an
alarm to other equipment.
Mode, to [13] Infinite auto reset, when par.22-60
Function:
Sets the broken belt torque as a percentage of the rated motor torque.
Parameter Description
Configuration Mode, is set for Closed Loop
Configuration Mode is set for Closed Loop
Broken Belt Torque) and the
Broken Belt Function
Broken Belt
is set to [2] Trip.
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