Trane TR200 Series - Page 84

4-14 Motor Speed High Limit [Hz]
Range: Function:
50/60.0
Hz*
[par. 4-12 - par. 4-19 Hz] Enter the maximum limit for motor speed. The Motor Speed High Limit
can be set to correspond to the manufacturer’s recommended maximum
of the motor shaft. The Motor Speed High Limit must exceed the in par.
4-12
Motor Speed Low Limit [Hz]. Only par.4-11 Motor Speed Low Limit
[RPM] or par.4-12 Motor Speed Low Limit [Hz] will be displayed depend-
ing on other parameters in the Main Menu and depending on default
settings dependant on global location.
NOTE: Max. output frequency cannot exceed 10% of the inverter switching frequency (par.14-01
Switching Fre-
quency).
4-16 Torque Limit Motor Mode
Range: Function:
110.0
%*
[0.0 - 1000.0 %] Enter the maximum torque limit for motor operation. The torque limit is
active in the speed range up to and including the rated motor speed set
in par.1-25
Motor Nominal Speed. To protect the motor from reaching
the stalling torque, the default setting is 1.1 x the rated motor torque
(calculated value). See also par.14-25
Trip Delay at Torque Limit for fur-
ther details.
If a setting in par.1-00
Configuration Mode to par.1-28 Motor Rotation
Check is changed, par.4-16 Torque Limit Motor Mode is not automatically
reset to the default setting.
4-17 Torque Limit Generator Mode
Range: Function:
100.0
%*
[0.0 - 1000.0 %] Enter the maximum torque limit for generator mode operation. The tor-
que limit is active in the speed range up to and including the rated motor
speed (par.1-25
Motor Nominal Speed). Refer to par.14-25 Trip Delay at
Torque Limit for further details.
If a setting in par.1-00
Configuration Mode to par.1-28 Motor Rotation
Check is changed, par.4-17 Torque Limit Generator Mode is not auto-
matically reset to the default settings.
4-18 Current Limit
Range: Function:
110.0
%*
[1.0 - 1000.0 %] Enter the current limit for motor and generator operation. To protect the
motor from reaching the stalling torque, the default setting is 1.1 x the
rated motor current (set in par.1-24
Motor Current). If a setting in par.
1-00
Configuration Mode to par.1-28 Motor Rotation Check is changed,
par.4-16
Torque Limit Motor Mode to par.4-18 Current Limit are not au-
tomatically reset to the default settings.
4-19 Max Output Frequency
Range: Function:
100.0
Hz*
[1.0 - 1000.0 Hz] Enter the maximum output frequency value. par.4-19
Max Output Fre-
quency specifies the absolute limit on the frequency converter output
frequency for improved safety in applications where accidental over-
speeding must be avoided. This absolute limit applies to all configura-
tions and is independent of the setting in par.1-00
Configuration Mode.
This parameter cannot be adjusted while the motor is running.
Parameter Description
TR200 Programming Guide 83