Trane TR150 Programming Manual page 37

Parameters
1-63 Slip Compensation Time Constant
Range:
0.1 s [0.05 - 5 s] Enter the slip compensation reaction speed.
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3 3
1-64 Resonance Dampening
Range:
100 [0 -
% 500 %]
*
1-65 Resonance Dampening Time Constant
Range:
0.005 s [0.001 -
*
0.050 s]
1-66 Min. Current at Low Speed
Range:
50 % [0 - 120 %] Applies to PM motors only. Increasing the
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3.2.9 1-7* Start Adjustments
Parameters for configuring special motor start features.
1-70 PM Start Mode
This parameter is valid since software version 2.80 and later
versions. Use this parameter to select the PM motor start mode,
which is to initialize the VVC
running PM motors. This parameter is active for PM motors in
+
VVC mode only if the motor is stopped (or running at low
speed).
Option:
[0] Rotor Detection The rotor detection function estimates the
36
TR150 and TR170
Function:
A high value results in slow reaction, and a
low value results in quick reaction. If low-
frequency resonance problems occur, use a
longer time setting.
Function:
Enter the resonance damping value. Set
parameter 1-64 Resonance Dampening and
parameter 1-65 Resonance Dampening Time
Constant to help eliminate high-frequency
resonance problems. To reduce resonance
oscillation, increase the value of
parameter 1-64 Resonance Dampening.
Function:
Set parameter 1-64 Resonance Dampening
and parameter 1-65 Resonance Dampening
Time Constant to help eliminate high-
frequency resonance problems. Enter the
time constant that provides the best
dampening.
Function:
minimum current improves motor torque at
low speed, but also reduces efficiency.
+
control core for previously free-
Function:
electrical angle of the rotor and uses the
angle as a starting point. This option is
the standard selection for automation
frequency converter applications. If the
flying start function detects that motor is
running at low speed or is stopped, the
frequency converter can detect the rotor
position (the angle). The frequency
02/2017 All rights reserved.
1-70 PM Start Mode
This parameter is valid since software version 2.80 and later
versions. Use this parameter to select the PM motor start mode,
+
which is to initialize the VVC control core for previously free-
running PM motors. This parameter is active for PM motors in
+
VVC mode only if the motor is stopped (or running at low
speed).
Option: Function:
converter then starts the motor from that
angle.
[1] Parking The parking function applies DC current
*
across the stator winding, and rotates the
rotor to electrical zero position. This
function is typically selected for HVAC
applications. If the flying start function
detects that motor is running at low
speed or is stopped, the frequency
converter sends out a DC current to park
the motor at an angle. The frequency
converter then starts the motor from that
angle.
1-71 Start Delay
Range: Function:
0 s [0 - 10 This parameter enables a delay of the starting
*
s] time. The frequency converter begins with the
start function selected in parameter 1-72 Start
Function. Set the start delay time until
acceleration is to begin.
1-72 Start Function
Option: Function:
[0] DC Hold/ The motor is energized with
delay time parameter 2-00 DC Hold/Motor Preheat
Current during start delay time.
[2] Coast/delay The is coasted during start delay time ( off).
*
time
BAS-SVP16B-EN