Connect-Tek Transa PRO 17 Manuál s instrukcemi stáhnout pdf (Strana 50)

Depress to select Change Tach and to display the

Input/O s. With INPUT

highlighted, de

utput configuration menu

press

to enter INPUT SETUP.

4.2.2.1. Direction Detection

Direction detection allows the tachometer to monitor and react not only to

ode, a negative in

front of the speed indicates a reversal in direction. Alarm setpoints and

hysteresis can be set to react to target reversal. In counter mode, the count will

increment in one direction and decrement in the reverse direction. Analog

pro +20mA. –20 mA indicates a

20mA indicates a forward

tail in a subsequent section.

4.2.2.1.1. Quadrature

When set for direction mode, the instrument can decode direction based on

two digital signals whose rising edges are spaced 45° to 135° apart such

that one channel leads (or lags) the other. The signals can come from two,

independent sensors, or from a bi-directional sensor such as an AI-TEK

BH series sensor. The instrument can be user-configured to react to either

A leads B (ALB) or B leads A (BLA) as a reversal in direction.

See section 3.4 for connection information.

speed information, but to direction as well. In tachometer m

output can be configured to vide –20 to

reverse direction, 0 mA indicates stop and +

direction. This will be discussed in greater de

Direction detection is accomplished in two w

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Connect-Tek Transa PRO 17 Manuál s instrukcemi Strana 50