GE AF-650 GP Programming Manual page 40

Parameter Descriptions
F-23 Start Speed [Hz]
Range: Function:
0 [0 - This parameter can be used for hoist
Hz 500.0 applications (cone rotor). Set a motor start
*
Hz] speed. After the start signal, the output speed
leaps to the 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.
F-24 Holding Time
Range: Function:
0 s [0 - 25.5 s] This parameter refers to the start function
*
selected in parameter F-25 Start Function.
Enter the time delay required before
commencing acceleration.
F-25 Start Function
Option: Function:
Select the start function during start delay.
This parameter is linked to
parameter F-24 Holding Time.
[0] DC Hold/ Energizes motor with a DC hold current
delay time (parameter B-00 DC Hold Current) during the
start delay time.
[1] DC Brake/ Energizes motor with a DC brake current
delay time (parameter B-01 DC Brake Current) during the
start delay time.
[2] Coast/delay Motor coasted during the start delay time
time (inverter off).
*
[3] Start speed Only possible with Advanced Vector Control.
cw Connect the function described in
parameter F-22 Start Speed [RPM] and
parameter F-29 Start Current in the start delay
time.
Regardless of the value applied by the
reference signal, the output speed applies the
setting of the start speed in
parameter F-22 Start Speed [RPM] or
parameter F-23 Start Speed [Hz], and the output
current corresponds to the setting of the start
current in parameter F-29 Start Current. This
function is typically used in hoisting
applications without counterweight and
especially in applications with a cone-motor,
where the start is clockwise, followed by
rotation in the reference direction.
[4] Horizontal Only possible with Advanced Vector Control.
operation For obtaining the function described in
parameter F-22 Start Speed [RPM] and
parameter F-29 Start Current during the start
delay time. The motor rotates in the reference
direction. If the reference signal equals zero
DET-618D
AF-650 GP™ Programming Guide
F-25 Start Function
Option:
[5] Adv. Vector
Control/Flux
Clockwise
[6] Hoist Mech.
Brake Rel
[7] Adv. Vector
Control/Flux
Counter-cw
F-26 Motor Noise (Carrier Freq)
Select the carrier frequency. Changing the switching frequency
reduces acoustic noise from the motor. Default values depend on
power size.
Option:
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
*
02/2016 All rights reserved.
Function:
(0), parameter F-22 Start Speed [RPM] is ignored
and the output speed equals zero (0). The
output current corresponds to the setting of
the start current in parameter F-29 Start
Current.
For the function described in
parameter F-22 Start Speed [RPM] only. The
start current is calculated automatically. This
function uses the start speed in the start delay
time only. Regardless of the value set by the
reference signal, the output speed equals the
setting of the start speed in
parameter F-22 Start Speed [RPM]. [3] Start
speed/current clockwise and [5] Advanced Vector
Control/Flux clockwise are typically used in
hoisting applications. [4] Start speed/current in
reference direction is particularly used in
applications with counterweight and horizontal
movement.
For utilizing mechanical brake control
functions (parameter B-24 Stop Delay to
parameter B-28 Gain Boost Factor). This
parameter is only active in flux control
principle, in a mode with motor feedback or
sensorless mode.
Function:
1.0 kHz
1.5 kHz Default switching frequency for 355–
1200 kW [500-1600] hp at 690 V.
2.0 kHz Default switching frequency for 250–
800 kW/350-1200 hp at 400/460 V
and 37–315 kW/50-450 hp at 690 V.
2.5 kHz
3.0 kHz Default switching frequency for 18.5–
37 kW/25-50 hp at 240 V and 37–200
kW/50-300 hp at 400/460 V.
3.5 kHz
4.0 kHz Default switching frequency for 5.5–
15 kW/7.5-20 hp at 240 V and 11–30
kW/15- 40 hp at 400/460 V.
5.0 kHz Default switching frequency for 0.25–
3.7 kW/0.33-5 hp at 200 V and 0.37–
7.5 kW/0.5-10 hp at 400/460 V.
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