Trane TR200 - Page 227

22-43 Wake-up Speed [Hz]
Range: Function:
Applica-
tion de-
pend-
ent*
[Application dependant]
22-44 Wake-up Ref./FB Difference
Range: Function:
10 %* [0 - 100 %] Only to be used if par.1-00
Configuration Mode is set for closed-loop and
the integrated PI controller is used for controlling the pressure.
Set the pressure drop allowed in percentage of setpoint for the pressure
(Pset) before canceling the sleep mode.
NOTE: If used in application where the integrated PI controller is set for inverse control (e.g., cooling tower
applications) in par.20-71
PID Performance, the value set in par.22-44 Wake-up Ref./FB Difference will automat-
ically be added.
22-45 Setpoint Boost
Range: Function:
0 %* [-100 - 100 %] Only to be used if par.1-00
Configuration Mode, is set for closed-loop and
the integrated PI controller is used. For example, in systems with con-
stant pressure control, it is advantageous to increase the system pres-
sure before the motor is stopped. This will extend the time during which
the motor is stopped and help to avoid frequent start/stop.
Set the desired overpressure/temperature as a percentage of the setpoint
for the pressure (Pset)/temperature before entering sleep mode.
If set at 5%, the boost pressure will be Pset*1.05. The negative values
can be used, for example, for cooling tower control, where a negative
change is needed.
22-46 Maximum Boost Time
Range: Function:
60 s* [0 - 600 s] Only to be used if par.1-00
Configuration Mode is set for closed-loop 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 and will not wait for the set
boost pressure to be reached.
22-6* Broken Belt Detection
Broken belt detection can be used in both closed-loop and open-loop systems for pumps, fans and compressors.
If the estimated motor torque is below the broken belt torque value (par.22-61
Broken Belt Torque) and the
adjustable frequency drive output frequency is above or equal to 15 Hz, the broken belt function (par.
22-60
Broken Belt Function) is performed.
Parameter Description
4-190 TR200 Programming Guide