General

Weighing module discrete outputs are used to trigger actions on threshold crossing. This functionality is used in the "filling machine" application.

Discrete outputs are connected using a screw terminal block:

The common 2 and 3 are linked by the card.

Characteristics of the discrete outputs

The following table shows the characteristics of the discrete outputs of the module TSX ISP Y100/101:

Discrete output

Characteristics

Number of channels

2

Type

A transistors

Response time

1 ms discrimination. The point where the threshold between two measurements is crossed is calculated by millisecond interpolation

Nominal supply voltage

24 V

Insulation voltage

1500 Veff

Maximum current

500 mA

Protection

Polarity and short-circuit inversion

Provide a fuse on the pre-actuators +24 V

Protection

The outputs are galvanically protected by the ground.

Each of the two output channels is protected against:

  • short-circuits and overloads

  • polarity inversions

NOTE: In order to best protect against polarity inversions, it is essential to place a fast-acting fuse on the supply, upstream of the load (shown as Fu in the diagram above).