APC AP9810 User Manual

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Dry Contact I/O Accessory (AP9810) Technical Guide

Overview

The APC® Dry Contact I/O Accessory provides a hardware interface for connecting the host device of a Network Management Card 2 (AP9631 or AP9635) with peripheral devices. The Dry Contact I/O Accessory includes:

Inputs (labeled Zones A andB) for two dry contact devices

One 12 V, 25 mA power output (labeled Pwr)

One Form C relay (relay outputs labeled Output).

Dry Contact I/O Accessories connect to Universal I/O ports on your Management Card 2: AP9635 includes one port and AP9631 includes two ports. Through your Management Card 2 software interface, you specify which alarms will cause a change in the state of the Form C relay. You also set the actions that will occur at the host due to a change in state of your dry contact devices.

Installation

Install the Dry Contact I/O Accessory using the details below. Connect devices to the screw terminal block using the following subsections.

dmp0114a

COM

B NC

Zone

A COM NC

P

NO

wr

 

GND

+12

 

Output

NC COM NO

Item

Description

Screw terminal block; accepts 16 AWG to 28 AWG wires

Dry Contact I/O Accessory

25.4 cm (1 ft) CAT-5ERJ-45patch cable used to connect the Dry Contact I/O Accessory to a Universal I/O port on a Management Card 2

Note: The Management Card 2 must have application firmware v5.0.2 or greater. For details on upgrading the Management Card 2 firmware, see the user’s guide on the

Network Management Card Utility CD or on the APC Web site (www.apc.com).

Note: If you are using PowerChute Network Shutdown (PCNS) and if your Management Card 2 has two Universal I/O ports, you must connect the Dry Contact I/O Accessory to Universal I/O port 2. PCNS supports only one Dry Contact I/O Accessory.

Connecting dry contact devices to the Zone A and B terminals on the screw terminal block

The sensing voltage available on the Zone A and B pins of the Dry Contact I/O Accessory is nominally 5 Vdc at less than 1 mA, referenced to system ground.

Connecting a device to the power output (Pwr) terminals on the screw terminal block

You can use the NO/GND terminal on the screw terminal block to connect Normally Open (NO) dry contact devices and to connect a device to the power output (Pwr) terminals.

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Dry Contact I/O Accessory (AP9810) Technical Guide

Connecting a device to the Output terminals on the screw terminal block

Note: The Form C relay is not intended to switch AC loads directly (see the ratings below).

Form C relay ratings

Normal switching capacity

1

A at 30 VDC

Maximum switching power

30 W

Maximum switching voltage

60 VDC

Maximum switching current

2

Adc

Maximum carrying current

2

Adc

Surge ratings

2 kV per Bellcore; TA-NWT-001089

 

1.5 kV per FCC part 68

If you are connecting two Dry Contact I/O Accessories to a

Management Card 2, you have two options:

• Connect a device to the Output terminals for each Dry Contact I/O Accessory separately.

• Connect the Dry Contact I/O Accessories in the same circuit to implement AND or OR logic (see the diagram to the right). For example, if one Output changes state when the host reports a Replace Battery alarm and the other Output changes state when the host reports aFault alarm, you can connect the Dry Contact I/O Accessories so that the device detects a change in state when only one alarm occurs (OR logic) or when both alarms occur simultaneously (AND logic).

Dry Contact I/O Accessory (AP9810) Technical Guide

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Specifications

Electrical

Input voltage

24 VDC

Current draw

40 mA DC

Output

12 VDC, 25 mA

Physical

Size

22.0 x 45.2 x 44.6 mm

(Height x Width x Depth)

(0.87 x 1.78 x 1.76 in)

Weight

51.0 g (1.8 oz)

Environmental

Temperature

 

Operating

0 to 40°C (32 to 104°F)

Storage

-15to 65°C (5 to 149°F)

Relative Humidity

 

Operating

0 to 95%

Storage

0 to 95%

Elevation

 

Operating

0 to 3 000 m (0 to 10,000 ft)

Storage

0 to 15 000 m (0 to 50,000 ft)

Customer support and warranty information is available at the APC Web site, www.apc.com.

© 2009 APC by Schneider Electric. All trademarks are owned by Schneider Electric Industries S.A.S., American Power Conversion Corporation, or their affiliated companies.

990-3577-00104/2009

*990-3577-001*