2
Figure 1-1
AX-8 Analog Expanders in a
Typical Communication Network
INPUTS (PLC)
POWERMETER
POWERMETER
AX-8
POWERMETER
RS-422/RS-485
UP TO 31 POWERMETERS
00-02021
USER'S ANALOG
C U R R E N T
C U R R E N T
C U R R E N T
L3
/L
31
K
V
L
1/
L1
2
VOLTAGE
VOLTAGE
L
2/
L2
3
V
K
V
V
HARMONIC ANALYZER
VOLTAGE
K
V
V
RESET
SELECT
RESET
M A X
PAGING
E N E R G Y
KVARH/MVARH
K A
REACTIVE ENERGY
MAX.AMP.DEMAND
290H
K V A R
M V A R
MAX.DEMAND
MAX.AMP.DEMAND
MAX.AMP.DEMAND
K A
A
A
ACTIVE POWER
ACTIVE ENERGY
REACTIVE POWER
K A
A
POWER FACTOR
UNBALANCED CURRENT
FREQUENCY
M W
K W
K W H / M W H
MAX.DEMAND
SATEC
A
H z
SYSTEM 290
APPARENT POWER
M V A
KVA
CURRENT
CURRENT
CURRENT
L3
/L
31
K V
L
1/
L1
2
V O L T A G E
V O L T A G E
L
2/
L2
3
V
K V
V
HARMONIC ANALYZER
V O L T A G E
K V
V
R E S E T
SELECT
R E S E T
MAX
P A G I N G
ENERGY
K V A R H / M V A R H
K A
REACTIVE ENERGY
MAX.AMP.DEMAND
290H
KVAR
M V A R
MAX.DEMAND
MAX.AMP.DEMAND
MAX.AMP.DEMAND
K A
A
A
ACTIVE POWER
ACTIVE ENERGY
REACTIVE POWER
K A
A
POWER FACTOR
UNBALANCED CURRENT
FREQUENCY
M
W
K
W
K W H / M W H
MAX.DEMAND
SATEC
A
H
z
SYSTEM 290
APPARENT POWER
M V A
K V A
CURRENT
CURRENT
CURRENT
L3
/L3
1
K V
L
1/
L1
2
VOLTAGE
VOLTAGE
L
2/L
23
V
K V
V
HARMONIC ANALYZER
VOLTAGE
K V
V
R E S E T
S E L E C T
R E S E T
M A X
PAGING
E N E R G Y
KVARH/MVARH
K
A
REACTIVE ENERGY
MAX.AMP.DEMAND
290H
KVAR
MVAR
MAX.DEMAND
MAX.AMP.DEMAND
MAX.AMP.DEMAND
K
A
A
A
ACTIVE POWER
ACTIVE ENERGY
REACTIVE POWER
K
A
A
POWER FACTOR
UNBALANCED CURRENT
FREQUENCY
M W
K W
KWH/MWH
MAX.DEMAND
SATEC
A
H
z
SYSTEM 290
APPARENT POWER
MVA
KVA
AX-8
ADDRESS 1
ANALOG OUTPUT
OUT
IN
#2
#31
#1
ADDRESS 0
IN
ANALOG OUTPUT
ANALOG EXPANDER AX-8
ANALOG OUTPUTS
ON
POWER SUPPLY
DC
AC
+
L N
_
NETWORK
RS-422/RS-485
RX
RS-422
POWER METER
TX
TX RX
+
+
_ _
R X
+ _
1
2
5
3
4
6
7
8
RX
TX
R X
T X
RX
T X
_
_
+
+
+ _ + _ + _ + _ + _ + _ + _
POWER METER
R X
ON
T X
_N
L
+
A C
D C
POWER SUPPLY
ANALOG EXPANDER AX-8
R X
_
T X
RS-422/RS-485
NETWORK
+
T X
T XR X
_
_
+ +
R X
TX
RS-422
+
R X
+
_
RX
1
_
+
ANALOG OUTPUTS
+
_
+
_
+
_
4
3
2
5
_
_
+
_
+
_
+
8
7
6
RS
RS-422 ONLY
