ABB Panel 800 PP826 touch screen touch panel LCD

Description

PP826 The following hardware is required for a standard NE or ND Master Vote 3000 output set:

1. Two DSDO 110 digital output card with 32 channels, one in each controller side, for

controlling four output stage termination units.

2. Four termination units, DSTD N020 for NE outputs or DSTD N021 for ND outputs.

Each termination unit provides 7 field output channels. PP826 The termination units are

connected to the digital output card with a 40-pole/split to 4×10-pole ribbon cable.

3. Two DSDI 110 digital input card with 32 channels per 16 termination units (that is per

4 Master Vote 3000 output sets) one in each controller side with one common termination

unit DSTD N007, for the Master Vote 3000 output test program. Each termination unit

gives 2 status feedback signals, one for channel test monitoring and one for isolate

monitoring.

A logic state table for this circuit describes its operation. A/B Isolate-N (ISO-A, ISO-B) and

A/B Shutdown-N (SD-A, SD-B) are the isolate and PP826 shutdown inputs from Safety Controller A

(SCA) and Safety Controller B (SCB) respectively. The logic is negated, that is low (or zero)

represents the activate signal state

The Master Vote 3000 has two power interrupting relays in the output power supply, controlled

directly from the A/B Isolate-N. This allows either computer to disable its power feed to the

unit. The function is used de-energize the output in case of a driver short circuit, or to isolate

one system side for maintenance (Maintenance Bypass)

A/B Activate (ACT-A, ACT-B) are the inputs from Safety Controller A (SCA) and Safety

Controller B (SCB) respectively. The isolate signal logic is negated (that is low is the active

state).

Master Vote 3000 Options

For details see description in Section 2.1.6.2, Output testing.

Manual release

PP826 The Master Vote 3000 termination unit includes external output connections for hard-wired

activation of the individual ND outputs. In this configuration, a hard-wired activation command

will directly bypass the logic and cause a direct activation. Read-back and testing will detect the

presence of a hard-wired command action.

3.2.2.2 DSDO 110/115, Digital Outputs

The DSDO 115 digital output set consist of standard, 32 channels, DSDO 115, digital output

boards and a, DSTD N007, termination board with signal splitting. The 24 VDC transistor

outputs are short circuit proof and can supply maximum 150 mA pr. channel.

The field power are supplied through the termination board and can be single or redundant

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