Toshiba H9 Installation And Operation Manual page 175

F504
Acc/Dec Pattern 1 – 4
Program ⇒ Special ⇒ Acc/Dec Special
Four Acceleration times and four Deceleration times may be set up and run
individually. Accel/Decel Time #1 – #4 may be selected using this parameter
setting or switched via threshold frequencies, or by discrete input terminal.
This parameter is used to select one of the four configured accel/decel profiles
to be used.
Settings:
1 — Acc/Dec #1
2 — Acc/Dec #2
3 — Acc/Dec #3
4 — Acc/Dec #4
Each Accel/Decel selection is comprised of an Acceleration Time,
Deceleration Time, and a Pattern selection. Selection 1, 2, and 3 have a
Switching Frequency setting. The Switching Frequency is used as a threshold
frequency that, once reached, the ASD switches to the next higher Acc/Dec
selection (i.e., 1 to 2, 2 to 3, or 3 to 4). Switching Frequency settings are also
used during deceleration. A switching frequency setting is not required for
Acc/Dec #4.
Acc/Dec #1 is set up using parameters
F502 (Pattern), and F505 (Switching Frequency).
Acc/Dec #2 is set up using parameters
F503 (Pattern), and F513 (Switching Frequency).
Acc/Dec #3 is set up using parameters
F512 (Pattern), and F517 (Switching Frequency).
Acc/Dec #4 is set up using parameters
F516 (Pattern).
This parameter (F504) is used to manually select Acc/Dec #1 – #4.
To switch using the Terminal Board, assign the functions Acc/Dec Switching
1 and Acc/Dec Switching 2 to two discrete input terminals. Activation
combinations of the two terminals result in the Acc/Dec #1 – #4 selections as
shown in Table 4.
Figure 30 shows the setup requirements and the resulting output frequency
response when using Switching Frequency settings to control the Acc/Dec
response of the ASD output.
While operating using S-Pattern 1 the system performance may be further
enhanced by the adjustment of parameters
for upper and lower Acc/Dec limit adjustments. These settings are used to
extend or shorten the upper or lower Acc/Dec curve.
If operating from the Local mode, press Esc from the Frequency Command
screen to access this parameter.
Accel/Decel Switching Frequency 1
Program ⇒ Special ⇒ Accel/Decel Special
This parameter sets the frequency at which the acceleration control is switched
from the Accel #1 profile to the Accel #2 profile during a multiple-acceleration
profile configuration.
H9 ASD Installation and Operation Manual
F009 (Acc Time), F010 (Dec Time),
F500 (Acc Time), F501 (Dec Time),
F510 (Acc Time), F511 (Dec Time),
F514 (Acc Time), and F515 (Dec Time),
F506 – F509. These settings provide
Direct Access Number — F504
Parameter Type — Selection List
Factory Default — 1
Changeable During Run — Yes
Table 4.
Using combinations of discrete terminal
activations Accel/Decel profiles 1–4 may
be selected.
Acc/Dec Switching Truth
A/D SW 1 A/D SW 2 Acc/Dec # Out
0 0
0 1
1 0
1 1
1 = Discrete terminal activation.
Figure 30. Using Acc/Dec Switching.
1 — Accel time 1 (F009 setting)
2 — Accel time 2 (F500 setting)
3 — Accel time 3 (F510 setting)
4 — Accel time 4 (F514 setting)
5 — Decel time 4 (F515 setting)
6 — Decel time 3 (F511 setting)
7 — Decel time 2 (F501 setting)
8 — Decel time 1 (F010 setting)
Direct Access Number — F505
Parameter Type — Numerical
Factory Default — 0.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — Max. Freq. (F011)
Units — Hz
F505
1
2
3
4
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