Trane TR200 Programming Manual page 67

Parameter Description
[0] * Disabled
[1] Enabled
1-8* Stop Adjustments
Parameters for setting special stop features for the motor.
1-80 Function at Stop
Option:
[0] * Coast
[1] DC Hold/Motor Preheat
1-81 Min Speed for Function at Stop [RPM]
Range:
Applica- [0 - 600 RPM]
tion de-
pend-
ent*
1-82 Min Speed for Function at Stop [Hz]
Range:
Applica- [Application dependant]
tion de-
pend-
ent*
Trip at Motor Speed Low Limit
In par.4-11 Motor Speed Low Limit [RPM]
imum speed for the motor in order to ensure proper oil distribution.
In some cases, e.g., if operating in current limit because of a defect in the compressor, the output motor speed
can be suppressed below Motor Speed Low Limit. To prevent damage to the compressor, it is possible to set
trip limit. If the motor speed drops below this limit, the adjustable frequency drive will trip and issue an alarm
(A49).
Reset will take place according to the selected function in par.14-20
If the trip must take place at a rather exact speed (RPM), it is recommended to set par.0-02
for RPM and use slip compensation, which can be set in par.1-62
4-30
activated in the time set in par.2-02
place from 0 Hz.
Disable
Select [0] if this function is not required
Enable
Select [1] to enable the adjustable frequency drive to "catch" and
control a spinning motor.
Function:
Select the adjustable frequency drive function after a stop command or
after the speed is ramped down to the settings in par.1-81
Function at Stop [RPM].
Leaves motor in free mode.
Energizes motor with a DC holding current (see par.2-00
Current).
Function:
Set the speed at which to activate par.1-80
Function:
and par.4-12 Motor Speed Low Limit
DC Braking Time. Start will then take
Function at
[Hz], it is possible to set a min-
Reset Mode.
Motor Speed Unit
Slip Compensation.
TR200 Programming Guide
Min Speed for
DC Hold/Preheat
Stop.