Electrex EXA NET 96 Installation Manual - Page 3

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NOTE n.1
NET
3PH-3W-2CT
3PH-4W
2PH-2W
1PH-2W
CT
Primary / Secondary of the current transformer (CT)
VT
Primary / Secondary of the voltage transformer (VT)
NOTE n.2
P AVG
Integration time of the average value (AVG) and peak value (MD) for
power (from 1 to 60 minutes)
I AVG
Integration time of the average value (AVG) and peak value (MD) for
current (from 1 to 60 minutes)
NOTE n.3
DIM
Enable / Disable dimming of the display
TIME
Time in seconds after which the display luminosity is reduced. (With DIM
enabled)
LIGHT
Luminosity level of the display
PULSE
Enable / Disable the fl ashing of the sine wave symbol
Electrex logo.
NOTE n.4
DEF
Selects the default network interface to be used for the communication
ETH
Enable / Disable the Ethernet (LAN) port
WIFI
Enable / Disable the WIFI port
NOTE n.5
DHCP
Enable / Disable the search for a DHCP server in the network
IP
IP address of the network interface
NETM
Subnet mask: defi nes the belonging range of a host within an IP
subnetwork
GWAY
IP address of the gateway
MESSAGE "CFG ERROR"
During the set up operation a "CFG ERROR" message could appear. This means that
some wrong parameters are inserted.
2 phases 3 wires, triangle
3 phases 4 wires, Star
2 phases 2 wires, biphase
1 phase 2 wires, monophase
light near the
CFG ERROR
INPUT & OUTPUT CONNECTION
12
C
DI (-)
11
10
11
10
!
DI (+)
Digital Inputs
Supply voltage (external):
from 10 to 30
Vdc
Current consumption:
from 2 to 10mA
Max. count frequency
10 or 100Hz
N.B. For gas meters a galvanic separation is
needed per ATEX standards
INPUT & OUTPUT CONNECTION EXAMPLE
S1 S2 S1 S2 S1 S2
I1
I2
I3
CURRENT INPUTS
EXPBUS
POWER
VOLTAGE INPUTS
SUPPLY
V1 V2 V3 N
17
18
DIP-SWITCH CONFIGURATION
DIP FUNCTION
1 Line termination resistance (120 Ohm)
2 Fail safe resistance B (-)
3 Fail safe resistance A (+)
4 Not used
* with RS-485 Master PUK activated
LAN 10/100 ETHERNET PORT
EXPBUS
The instrument is equipped with a Ethernet Lan 10/100 Auto-MDI/MDIX port.
For the connection can be used a data cable straight or crossover.
Note: the port is not a PoE (Power over Ethernet = device power supply via the Lan port)
type. The connection of the device to a PoE port is anyway accepted. The power supply
anyway must be always provided by an external power supplier.
EXPBUS PORT
The ExpBus port, confi gurable via Ethernet port on web pages:
- uses a multicast communication rated at 250kb/sec with collision management
- max cable length : 10 meters
- manages up to 16 modules (but technically can manage up to 126)
- uses the UTP cable, 4 wires used:
2 for the power supply at 9 Vdc
2 for the bidirectional communication
The modules will also power supply the ExpBus port
The cable must be connected in in-out modality (multidrop) as per the RS485 Bus.
21
2
1
DO2
20
12
DO1
AUX
19
IN/OUT
Common
Digital outputs (optocoupled NPN
transistor type for DIN 43864)
Maximum applicable voltage:
Maximum switchable current:
NC
NC
C
C
10 11
12
19
20
21
NO
NO
AUX IN/OUT
N L
230 V~
R
R
e
e
ETHERNET
l
l
24V =
a
a
- +
y
y
RS-485
A B
SLAVE
OFF
OFF
OFF
OFF
ON
1
2 3 4
ETHERNET
AUX
!
IN/OUT
19
20
21
C
1
2
27 Vdc
27 mA
MASTER *
ON
ON
ON
OFF
ON
1
2 3 4