N3 Drive Operations Manual
A (Advanced) Parameter Details; A019
Cont.,
A020
– A028
49
2.) A018>0 and A019 = 0: The inverter will conduct a spin start 0.5 seconds after fault trip. The
motor will run to the frequency at the trip point and then to set frequency at the selected
acceleration and deceleration times.
3.) A018>0 and A019>0: the output will be stopped for a period which is determined by
parameter A019 after a trip fault. Then, the inverter will spin start to the preset frequency.
4.) If the inverter is set to braking mode, it will not perform a restart after a trip fault.
A020 Error reset mode setting
0000: Enable Reset Only when Run Command is
Off
0001: Enable Reset when Run Command is On
or Off
A020 = 0000: If the inverter trips on a fault turn the Run switch OFF to perform a reset, or restarting will not occur
unless power is cycled.
b007
Acceleration Time #1 (seconds) 0.1
– 3600.0 sec.
b008 Deceleration Time #1 (seconds) 0.1
– 3600.0 sec.
A023
S Curve of First Acceleration
Stage (seconds)
0.0
– 4.0 sec.
A024
S Curve of Second Acceleration
Stage (seconds)
0.0
– 4.0 sec.
A025 Acceleration Time #2 (seconds) 0.1
– 3600.0 sec.
A026 Deceleration Time #2 (seconds) 0.1
– 3600.0 sec. for Emergency Stop reference
A027 Jog Acceleration Time(seconds) 0.1
– 25.5 sec.
A028 Jog Deceleration Time (seconds) 0.1
– 25.5 sec.
1.) Formula for calculating acceleration and deceleration time: The denominator is based on the rated frequency
of the motor (A005).
Acceleration time = b007 (or A025) x
Preset
frequency Deceleration time = b008 (or A026) x
Preset
frequency
A005
A005
2.) When A050
– A056 = 0006 (the second acceleration and deceleration time), the first acceleration /
deceleration / S curve or the second acceleration / deceleration / S curve will be set by the external input
terminal.
3.) When A050
– A056 = 0005 (Jog), Jog run is controlled by external terminals. The acceleration and
deceleration action will be at Jog acceleration and deceleration times.
4.) When the external terminals select A050
– A056 to = 0005 (Jog) and 0006 (acceleration and deceleration
time the resulting control of the accelerating and decelerating times are prioritized as follows.
Function
Preset value
Acc/ Dec time 1
(b007 / b008)
Acc/ Dec time 2
(A025 / A026)
JOG Acc/Dec time
(A027 / A028)
b004 determines the
output frequency
source
b004 determines the
output frequency
source
A059 determines the Jog
frequency
A050 - A056 = 0005
Jog command
Off
Off
On
A050 - A056 = 0006
Acc/Dec time 2
Off
On
Off
5.) When the S curve time (A023 / A024) is set to 0 sec., the acceleration and deceleration
ramps are linear.
6.) When S curve time (A023 / A024) is greater than 0 sec., the acceleration and deceleration action is as
shown in Fig.19.4.).
7.) Regardless of the stall prevention period, the actual acceleration and deceleration time = preset
acceleration / deceleration time + S curve time. For example: acceleration time = b008 + A023.
Cont.
