ACI KW320-P1-D-W-RC-PC Power Meter Installation Guide

ACI KW320-P1-D-W-RC-PC Power Meter

Appearance and Dimension

Part Name Description

display & keys.
8Keys| Four keys are used to select data or configure meter settings.
0 Meter Enclosure| Factory pre-wired, polycarbonate, NEMA4X panel meter enclosure.
@ Hinged Lid| Swing the clear lid open to access the meter.
C, Lid Latches| Latches secure the clear lid closed.
8 Pre-cut Holes| Two, pluggable holes are pre-drilled to route wiring to the meter.

Installation Method

Environment
The polycarbonate, NEMA 4X panel enclosure provides protection against most environmental challenges, such as dust or moisture. The meter may be installed outdoors, however, NEMA 4X-rated grommets or conduit must be connected to the pre-cut wiring holes to maintain the NEMA 4X rating and fully protect the meter. Note that the operating temperature range is 13 °F to 158 °F (-15 ° C to 70 °C ). Avoid placing the meter near radiation. or sources of electrical solid interference.
Installation Steps

1. Open the swing panel of the enclosure to view the terminal strip within the chamber. Voltage Inputs
2. Incoming power must be brought into the enclosure through the pre-cut holes (located at the bottom of the enclosure) and landed on the line side of it the terminals.

(Note: If installing the enclosure in an outdoor location, NEMA 4X-rated grommets or conduit must be connected to the pre-cut holes to maintain the NEMA 4X rating.)

• The 208V to be measured can be connected to the L 1, L2, and L3 terminals.
• Neutral can be connected to the N terminal, if applicable.
• Lift the L 1, L2, and L3 terminal covers up to access the screw to tighten the conductor into the terminal.

Mechanical specifications

voltage connections pre-installed, color-coded and

labelled

Flammability Rating| 94-V0
Enclosure Dimensions (L xW

xH)

| 7.88″ (200 mm) x 11.81″ (300 mm) x7.34″ (186.5 mm)
Enclosure Product Weight| 8 lbs. (3.63 kg)

Current Inputs

• Connect the current transformers (CTs) around a bus bar or other conductor to measure the current. Pay close attention to the polarity of the CTs during the installation process.
• The leads of the CT will need to be routed into the enclosure through the pre-cut holes and connected to the positive and negative CT terminals labeled CT1 +, CT1-, and so on.
• The positive lead of the CT needs to be connected to the CT terminal marked(+)
• The negative lead of the CT needs to be connected to the CT terminal marked(-)

Ground Terminal Connection
Before setting up the meter’s writing, it is important to connect the meter’s ground terminal and the switch gear’s ground terminal together.

Wiring Diagram

Settings Mode

Meter Settings

Press V/A and H together to enter the mode selection screen. Press P or E to move the cursor left or right, respectively, to the “Setting” tab, then press V/A.  A four-digit password is required to access the parameter setting mode. The default password is 0000o. Four options are available in the parameter selection page. “SYS” for system parameters, “VO” for /O module parameters, “WEB2” for Ethernet module parameters, and “ALM” for alarm parameters. Press P or E to move the cursor down or up, respectively. Press V/A to enter the selected parameter settings page.

Wiring Diagram, PT, and CT Settings
Enter the SYS” page and press P or E to scroll through the settings pages or V/A to change a parameter. For PT and CT ratio settings, press P or E to increase or decrease the digit by 1, press H to move the cursor to the next digit, and press V/A to accept any changes once finished.

Communication

Serial Communication Settings
Serial communication terminals are A, B, S, (14, 15, 16). A is differential signal (+),Bis differential signal (-), and (S) is shield. Up to 32 devices can be connected on a RS485 bus. The overall length of the bus cannot exceed 1200M (4000ft). When multiple meters are connected serially on the same RS485 bus, each meter shall have a different device address. Enter the “SYS” page and scroll to page 501 to set the device address. This address can be any integer between 1 and 247. The baud rate can be selected from one of six values: 1200, 2400, 4800, 9600, 19200, and 38400 bps. SW320 series meters need to set 531 Parity to one of the following settings: Odd, Even, None1 (stop bit 1), None2 (stop bit 2). The default setting is None1.

Ethernet Communication Settings

Enter the “WEB2” page and press P or E to scroll through the settings pages and V/A to change a parameter. To set a value, press P or E to increase or decrease the digit by 1, press H to move the cursor to the next digit, and press V/ A to accept the change when finished.

Alarming
16 alarming channels can be selected from 80 available parameters. Alarming channels and condition can be set from the utility software.

Specifications

Voltage Input

Nominal Full Scale| 400VAC L-N, 690Vac L-L
Withstand| 1S00VAC continuous

3250VAC, 50/60Hz for 1 minute

Input Impedance| 2M ohm per phase
Metering Frequency| 45-65 Hz
Pickup Voltage| l0VAC
Accuracy| 0.2% full scale
Current Inputs (Each Channel)

Nominal Current| 100 mV (lA)
Metering Range| 0-1.2A
Pickup Current| SmA
Withstand| 20A RMS continuous

100A RMS for 1 second, non-recurring

Burden| 0.0SVA (typical)@SA RMS
Accuracy| 0.2% full scale
AC/DC Control Power

Operating Range| 100-415VAC, 50/60Hz; 100-300VDC
Burden| SW
Withstand| 3250VAC, 50/60Hz 1 minute
 | Installation Category Ill (Distribution)

• ACCUEJVEilliY
• Accuenergy corporation
• Los Angeles-Toronto-Beijing
• North America Toll Free: 1-877-721-8908 Web: www.accuenergy.com Document#l 051 E3203

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