Main Menu - Limits/Warnings - Group - Trane TR150 Programming Manual

Parameters

3.5 Main Menu - Limits/Warnings - Group 4

3.5.1 4-1* Motor Limits
Define current and speed limits for the motor, and the
reaction of the frequency converter when the limits are
3 3
exceeded.
4-10 Motor Speed Direction
Option:
[0] Clockwise
[2] Both
*
directions
4-12 Motor Speed Low Limit [Hz]
Range:
0 Hz [ 0 -
*
400.0 Hz]
4-14 Motor Speed High Limit [Hz]
Range:
Size [ 0.1 -
related 400.0 Hz]
*
4-18 Current Limit
Range:
110 [0 -
% 300 %
*
]
44
Function:
NOTICE
The setting in parameter 4-10 Motor
Speed Direction has impact on
parameter 1-73 Flying Start.
Only operation in clockwise direction is
allowed.
Operation in both clockwise and counter-
clockwise directions are allowed.
Function:
Enter the minimum limit for motor speed. The
motor speed low limit can be set to
correspond to the minimum output frequency
of the motor shaft. The speed low limit must
not exceed the setting in
parameter 4-14 Motor Speed High Limit [Hz].
Function:
Enter the maximum limit for motor speed.
It can be set to match the recommended
maximum motor speed. The motor speed
high limit must exceed the value in
parameter 4-12 Motor Speed Low Limit [Hz].
Motor speed high limit cannot be set
higher than parameter 4-19 Max Output
Frequency.
Function:
Enter the current limit for motor and generator
operation (in % of rated motor current). If the
value is higher than maximum rated output from
frequency converter, current is still limited to the
maximum output current of the frequency
converter. If a setting in parameter 1-00 Configu-
ration Mode to parameter 1-25 Motor Nominal
Speed is changed, parameter 4-18 Current Limit is
not automatically reset to the default setting.
TR150 and TR170
4-19 Max Output Frequency
Range:
Size
related
*
3.5.2 4-4* Adjustable Warnings 2
4-40 Warning Freq. Low
Range:
Size
related
*
4-41 Warning Freq. High
Range:
Size
related
*
02/2017 All rights reserved.
Function:
[ 0 - Enter the maximum output frequency, which
400 defines the absolute limit on the frequency
Hz] converter output frequency for improved
safety in applications where unintended
overspeeding must be avoided. This absolute
limit applies to all configurations and is
independent of the setting in
parameter 1-00 Configuration Mode.
When parameter 1-10 Motor Construction is set
to one of the options enabling PM motor
construction, the maximum limit of
parameter 4-19 Max Output Frequency might
be limited by the setting of
parameter 1-40 Back EMF at 1000 RPM due to
avoid a too high Back EMF which can damage
the frequency converter. If parameter 4-19 Max
Output Frequency is set lower than
parameter 4-14 Motor Speed High Limit [Hz], the
value of parameter 4-14 Motor Speed High Limit
[Hz] is adjusted to the same value of
parameter 4-19 Max Output Frequency automat-
ically.
Function:
[ 0 - Use this parameter to set a lower limit for the
400 frequency range.
Hz] When the motor speed drops below this limit,
the display reads SPEED LOW. Warning bit 10
is set in parameter 16-94 Ext. Status Word. The
output relay or the digital output can be
configured to indicate this warning. The LCP
warning indicator light is not turned on when
this parameter set limit is reached.
Function:
[ 0 - Use this parameter to set a higher limit for
400 the frequency range.
Hz] When the motor speed exceeds this limit, the
display reads SPEED HIGH. Warning bit 9 is set
in parameter 16-94 Ext. Status Word. The
output relay or the digital output can be
configured to indicate this warning. The LCP
warning indicator light is not turned on when
this parameter set limit is reached.
BAS-SVP16B-EN