ABB ACS 400 User Manual page 95

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