ACS 400 User’s Manual 105
Example. Assume that a two pole motor is directly connected to a roll 0.1 m in diameter and the
line speed is to be displayed in m/s. The following settings are then needed:
3401
DISPLAY SEL = 2 (PROCESS VAR)
3402
P VAR 1 SEL = 0103 (OUTPUT FREQ)
3406
P VAR 1 UNIT = 19 (m/s)
Since 1 Hz output equals 1 rev/s, equals PI * 0.1 m/s line speed, or approximately 0.314 m/s, is:
Select:
3403
P VAR 1 MULTIP = 314
3404
P VAR 1 DIVISOR = 1000
Since variable 0103
OUTPUT FREQ is displayed with 0.1 Hz resolution, it is internally scaled so that
value 10 represents 1 Hz. Therefore 3405
P VAR 1 SCALING = 1 must be selected.
3407 P VAR 2 SEL
Selection of process variable 2. Number of any parameter of the group 1
OPERATING DATA.
3408 P VAR 2 MULTIP
Process variable 2 multiplier.
3409 P VAR 2 DIVISOR
Process variable 2 divider.
3410 P VAR 2 SCALING
Decimal point location of process variable 2, when displayed.
3411 P VAR 2 UNIT
Process variable 2 unit. See parameter 3406.
Code Description
line speed
=
output freq * 314
1000
m/s
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