GE AF-650 GP Programming Manual page 39

Parameter Descriptions
F-11 Motor External Fan
Option: Function:
[0] No No external fan on motor, that is the motor is derated
*
at low speed.
[1] Yes Applies an external motor fan (external ventilation), so
3 3
no derating of the motor is required at low speed. The
upper curve in Illustration 3.10 (f
followed if the motor current is lower than nominal
motor current (see parameter P-03 Motor Current). If
the motor current exceeds nominal current, the
operation time still decreases as if no fan was
installed.
F-12 Motor Thermistor Input
Option:
[0] None
*
[1] Analog Input
53
[2] Analog Input
54
[3] Digital input
18
[4] Digital input
19
[5] Digital input
32
[6] Digital input
33
F-15 Motor Speed High Limit [Hz]
Range:
50.0 Hz
*
F-16 Motor Speed Low Limit [Hz]
Range:
0 Hz [0 - par.
*
F-15 Hz]
38
= 1 x f
out
Function:
NOTICE
This parameter cannot be adjusted
while the motor is running.
NOTICE
Set digital input to [0] PNP - Active at
24 V in E-0#.
Select the input to which the thermistor (PTC
sensor) should be connected. An analog
input option [1] Analog Input 53 or [2] Analog
Input 54 cannot be selected if the analog
input is already in use as a reference source
(selected in parameter F-01 Frequency Setting
1, parameter C-30 Frequency Command 2 or
parameter C-34 Frequency Command 3).
[par. F-16 - par. F-03 Hz]
Function:
Enter the minimum limit for motor speed. The
Motor Speed Low Limit can be set to
correspond to the minimum output frequency
F-16 Motor Speed Low Limit [Hz]
Range:
F-17 Motor Speed High Limit [RPM]
) is
M,N
Range:
3600
RPM - 60000
*
RPM]
F-18 Motor Speed Low Limit [RPM]
Range:
0 RPM [0 - par.
*
F-17 RPM]
3.3.4 F-2# Fundamental 2
Parameters to configure drive Start Speed, Start Current,
Holding Time and Motor Noise (Carrier Frequency).
F-20 PM Start Mode
Option:
[0] Rotor
Detection
[1] Parking
*
F-22 Start Speed [RPM]
Range:
0 RPM [0 -
*
Function:
600
RPM]
02/2016 All rights reserved.
Function:
of the motor shaft. The Motor Speed Low
Limit must not exceed the setting in
parameter F-15 Motor Speed High Limit [Hz].
Function:
[par. F-18 Enter the maximum limit for motor speed.
The motor speed high limit can be set to
correspond to the manufacturer's
maximum nominal motor speed. The
motor speed high limit must exceed the
setting in parameter F-18 Motor Speed Low
Limit [RPM].
Function:
Enter the minimum limit for motor speed.
The motor speed low limit can be set to
correspond to the manufacturer's
recommended minimum motor speed. The
motor speed low limit must not exceed the
setting in parameter F-17 Motor Speed High
Limit [RPM].
Function:
Suitable for all applications where the motor is
known to be standing still when starting (for
example conveyors, pumps, and non-wind
milling fans).
If the motor turns at a low speed (that is
lower than 2–5% of the nominal speed), for
example due to fans with windmilling, select
[1] Parking and adjust parameter B-06 Parking
Current and parameter B-07 Parking Time
accordingly.
Function:
Set a motor start speed. After the start signal,
the output speed leaps to set value. Set the
start function in parameter F-25 Start Function
to [3] Start speed cw, [4] Horizontal operation,
or [5] Adv. Vector Control/Flux Clockwise, and
set a start delay time in
parameter F-24 Holding Time.
DET-618D