Table of Contents
Advertisement
83
21: Start/Stop
This group defines how the motor starts and stops. The AYK550 supports several start and stop modes.
Code Description
2101
START FUNCTION
Selects the motor start method.
1 =
– Selects the automatic start mode.
AUTO
•
control modes: Optimal start in most cases. Flying start function to a rotating axis and start at zero
VECTOR
speed.
•
:
mode: Immediate start from zero frequency.
SCALAR
FREQ
2 =
– Selects the DC Magnetizing start mode.
DC MAGN
Note! The DC Magnetizing start mode cannot start a rotating motor.
Note! The drive starts when the set pre-magnetizing time (param. 2103) has passed, even if motor magnetization is
not complete.
•
control modes: Magnetizes the motor within the time determined by the parameter 2103
VECTOR
using DC current. The normal control is released exactly after the magnetizing time. This selection guarantees
the highest possible break-away torque.
•
SCALAR SPEED
using DC current. The normal control is released exactly after the magnetizing time.
3 =
SCALAR FLYSTART
•
control modes: Not applicable.
VECTOR
•
control mode: The drive will automatically selects the correct output frequency to start a rotating motor.
SCALAR
Useful if the motor is already rotating and the drive will start smoothly at the current frequency.
4 =
– Selects the automatic torque boost mode (
TORQ BOOST
• May be necessary in drives with high starting torque.
• Torque boost is only applied at start, ending when output frequency exceeds 20 Hz or when output frequency is
equal to reference.
• In the beginning the motor magnetizes within the time determined by the parameter 2103
DC current.
• See parameter 2110
5 =
+
FLYSTART
TORQ BOOST
• Flying start routine is performed first and the motor is magnetized. If the speed is found to be zero, the torque
boost is done.
2102
STOP FUNCTION
Selects the motor stop method.
1 =
– Selects cutting off the motor power as the stop method. The motor coasts to stop.
COAST
2 =
– Selects using a deceleration ramp
RAMP
• Deceleration ramp is defined by 2203
2103
DC MAGN TIME
Defines the pre-magnetizing time for the DC Magnetizing start mode.
• Use parameter 2101 to select the start mode.
• After the start command, the drive pre-magnetizes the motor for the time defined here, and then starts the motor.
• Set the pre-magnetizing time just long enough to allow full motor magnetization. Too long a time heats the motor
excessively.
2104
DC CURR CTL
Selects whether DC current is used for braking.
0 =
– Disables the DC current operation.
NOT SEL
1 =
– Enables the DC Injection Braking.
DC BRAKING
• Enables DC Injection braking after modulation has stopped.
• If parameter 2102
• If parameter 2102
2106
DC CURR REF
Defines the DC current control reference as a percentage of parameter 9906 (
2107
DC BRAKE TIME
Defines the DC brake time after modulation has stopped, if parameter 2104 is 2 (
Start-Up
Group 21: Start/Stop
Range
1...5
mode: Magnetizes the motor within the time determined by the parameter 2103
– Selects the flying start mode.
.
TORQ BOOST CURR
– Selects both the flying start and the torque boost mode (
1, 2
DECELER TIME
0.00...10.00 s
0...2
is 1 (
STOP FUNCTION
COAST
2 (
STOP FUNCTION IS
RAMP
0...100%
0...250 s
Resolution
1
SCALAR SPEED
1
1 or 2206
DECELER TIME
0.01 s
-
), braking is applied after start is removed.
), braking is applied after ramp.
1%
0.1 s
AYK550-UH User's Manual
Default
1
YORK Default 3 Flying Start
DC MAGN TIME
DC MAGN TIME
mode only).
DC MAGN TIME
mode only).
SCALAR SPEED
1
2 (whichever is active).
0.30 s
0
30%
).
MOTOR NOM CURR
0 s
).
DC BRAKING
S
using
Advertisement
Table of Contents
