Connect-Tek Transa PRO 17 Manuál s instrukcemi stáhnout pdf (Strana 40)

the sign of the exponent is negative, the larger the exponent value, the smaller

sign is positive, the larger the exponent value, the

he further right you go, the more positive the

number gets. In terms of relative magnitude, -50 is greater than –100, but

+100 is greater than –100.

, a

the number. When the

larger the number.

For example:

1) 1.5674e-3 = 1. 5674 x 10

-3

= 1.5674 x .001 = .0015674

2) 1.5674e+3 = 1.5674 x 10

= 1.5674 x 1000 = 1567.4

-and-

3) -1.5674e-3 = -1. 5674 x 10

-3

= -1.5674 x .001 =-.0015674

4) -1.5674e+3 = -1.5674 x 10

= -1.5674 x 1000 = -1567.4

4.1.1.2. Number Line

TACHPAK and TACHTROL are designed to respond to both positive an

negative real numbers. A reversal in target direction (ex. clockwise to

counterclockwise) is interpreted as a negative speed. This concept is discussed

in section 4.2.2.1. In order to utilize the concept fully, it is necessary to

understand the number line and how it relates the relative magnitude of on

number to the next.

-100 -50 0 +50 +100

In the figure shown, numbers to the left of zero are negative; the further

left you go, the more negative the number gets. To the right of zero,

numbers are positive; t

+50 is less than +100. Of course,

For example, if a relay set point is set at –100 (alarm trip) and the alarm

mode is to energize when the speed increases above the setpoint (EA)

speed of –99 would trip the alarm.

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Connect-Tek Transa PRO 17 Manuál s instrukcemi Strana 40