Veris AH07 Installation Instructions

ACCESSORIES

INSTALLATION GUIDE

AH07

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes.

• This equipment must only be installed and serviced by qualied electrical personnel.

• Read, understand and follow the instructions before installing this product.

• Turn o all power supplying equipment before working on or inside the equipment.

• Use a properly rated voltage sensing device to conrm power is o. DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION

Failure to follow these instructions will result in death or serious injury.

AH07

RS-485 to RS-232 Converter

OPERATION

The AH07 converts the RS-485 output signal from a 2-wire power meter into a signal compatible with a host device that has an RS-232 port (e.g. PC, data acquisition device). Up to 31 RS-485 devices can be daisy chained to a single AH07 converter. The host device acts as the power supply. The AH07 requires DTR and RTS connected to the power supply for operation.

DIMENSIONS

2.6”

(67 mm)

1.3”

(32 mm)

NOTICE

• This product is not intended for life or safety applications.

• Do not install this product in hazardous or classiﬁed locations.

• The installer is responsible for conformance to all applicable codes.

WIRING

• The terminal’s voltage and current ratings are compatible with the requirements of the EIA RS-485 communications standard.

• Maximum baud rate is 19.2 kB.

Host Device with

RS-232 connection

port

(PC or data

collection device)

INSTALLATION

1. Disconnect power to the power meter and the host device.

2. Connect the AH07 to the RS-232 port on the host device.

3. Wire the rst meter to the AH07 slave port. Observe +, –, and S polarity as shown below. Use a 120Ω terminator between + and – (provided with the AH07).

4. If desired, daisy chain up to 31 meters or other 2-wire RS-485 devices (only 4 devices shown below). Terminate the nal device in the chain with a 120Ω terminator.

Shielded cable suitable for panel

voltage and conditions

Up to 31 RS-485 devices in a daisy chain

120Ω terminator on

the AH07 converter

and the

last device of the daisy

chain

–

Shield wire

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.