Siemens PAD-4 User Manual (English)

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Siemens PAD-4 Specifications

General

Brand	Siemens
Model	PAD-4
Category	Extender
Language	English

Summary

1. Descriptions

1.1 General Design Features

Details features of the PAD-4, including inputs, outputs, and auxiliary power capabilities.

Circuit Operations and Relays

Covers NAC outputs, auxiliary power, trouble, AC fail, and ground fault relays.

2. Installation

2.1 Enclosure and Power Supply Mounting

2.3 Control Unit and Wire Routing

2.5 Terminal Descriptions and Ratings

Details terminal descriptions and electrical ratings for the PAD-4.

2.6 Wiring the PAD-4

Provides general wiring instructions and layout for the PAD-4 main board.

2.6.1 AC Wiring

2.6.1.1 Wiring Power Supplies to PAD-4-MB

2.6.2 Battery Connection

Explains how to connect the 24V sealed lead-acid battery set to the PAD-4.

2.6.3 Class B (Style Y) Wiring

Shows how to wire for Class B (Style Y) input and output supervision.

2.6.4 Class A (Style Z) Wiring

Illustrates wiring for Class A (Style Z) input and output supervision.

3. Connection to Control Units

4. Sample Applications

5. Programming

5.1 DIP Switch Settings

Details the functions selectable via the 10-position DIP switch on the PAD-4.

5.1.1 Input/Output Configuration Selection

Explains how to select input/output configurations using DIP switches 1-3.

5.1.2 Setting the Auxiliary Output

5.1.3 Setting Input NAC Control

5.1.4 AC Power Fault Reporting Delay

5.2 Jumper Settings

Details the function and settings of various jumpers on the PAD-4 circuit board.

8. Troubleshooting

8.1 LED Indicators

8.2 Improper Operation Checks

8.3 Trouble Conditions and Causes

9. Battery Maintenance

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Table of Contents