-2-
-2-
Z202833-0K
©2006 Veris Industries
10061
1
RS 485 2 or 4-Wire Connection
Daisy chain multiple H663's using a 2-wire or 4-wire modbus network. Refer
to Figure 4 on page 7.
2
Optical Communications Isolation
Optical isolators are used to separate 120 VAC portions of the circuit from the
RS485 network.
3
Alive LED
Flashes once per second to indicate correct operation. If steadily lit or out,
indicates internal failure.
4
Current Transformer (CT) Connectors (Interconnection Boards)
Numbered terminals correspond to the input channels of the acquisition
board. Fasten the current transformer connectors into the terminals as
shown in figure 3 on page 3.
5
120 VAC Power Connection*
Easy 2-wire 120 VAC line to neutral 50/60 Hz.
6
250 VAC 100mA Fuse
Fused power connection for circuit protection.
7
Power Transformer
Linear power supply for reliability and low noise
8
Baud Rate & Parity Selection Switches
Field selectable RS-485 serial interface control.
(See Chart 1 on page 5)
INSTALLATION
Figure 1
6
4
2
12
10
8
18
16
14
24
22
20
30
28
26
36
34
32
42
40
38
9
Modbus Address Dip Switches
Each Modbus device must have a unique address. These switches must be set
to assign an individual address before the device is connected to the
network. (See page 5)
10
Lithium Battery
CAUTION! DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY
REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT
TYPE RECOMMENDED BY THE MANUFACTURER. DISPOSE OF
USED BATTERIES ACCORDING TO THE MANUFACTURER'S
INSTRUCTIONS.
11
TX LED
Indicates transmission of information over the Modbus network.
12
RX LED
Indicates data received on the Modbus network
13
Current Sensors
Each current sensor is capable of monitoring conductors carrying up to a
maximum of 50 amps.*
* The H663SM-42H is capable of monitoring conductors up to a maximum of 100 amps.
*For 240VAC Power Connection version, order catalog number H663SM-
xxE.
Shop for Power Metering products online at:
1.877.766.5412
www.
PowerMeterStore
.ca
