Specifications

External Dimensions/Installation/Connections
Wiring (Continued)
Wiring (Continued)
Optional Plug-in Module: ME-4210-SS96
CH1＋
CH1−
CH2＋
CH2−
CH3＋
CH3−
CH4＋
CH4−
C1A/A1
C1B/COM1
C2A/A2
C2B/COM2
DI＋
DI−
Analog output CH1
Analog output CH2
Analog output CH3
Analog output CH4
Pulse output1/Alarm output1
Pulse output2/Alarm output2
{
{
{
{
{
{
{
Digital input
Optional Plug-in Module: ME-0052-SS96
DI1＋
DI1−
DI2＋
DI2−
DI3＋
DI3−
DI4＋
DI4−
DI5＋
DI5−
DO1＋
DO1−
DO2＋
DO2−
DC24V
DO1
DO2
{
{
Condition Distance
Power lines under 600V/600A
Other power lines
More than 30cm
More than 60cm
1. Pulse output, alarm output, and contact input/output cables must not be in close proximity or bundled with power cables or
high-voltage cables. When laid parallel, separate by the distance shown in the following table.
2. Analog output cables must not be in close proximity or bundled with other power cables or input cables (e.g., VT, CT, auxiliary
power supply). In addition, to prevent noise, surge and induction, use shielded cables or twisted-pair cables. Make sure that
cables are as short as possible.
3. There is no insulation between the MODBUS
®
RTU communication portion and the optional ME-4210-SS96 unit.
4. Use only designated cables when connecting the CC-Link (see communication specifications). CC-Link dedicated cables cannot
be used at the same time as CC-Link dedicated high-performance cables. Normal data transmission cannot be guaranteed if used
at the same time. The terminal resistance value varies depending on the type of dedicated cable.
5. For cables connecting the CC-Link, connect shielded cables to “SLD” and ground “FG” cables. “SLD” and “FG” cables are
connected inside the unit.
6. CC-Link transmission lines are small signal circuits: separate from strong electrical circuits by a distance of 10cm or more, or
30cm or more if laid in parallel over a long distance. Ground the terminal before use.
7. For CC-Link transmission, always use dedicated lines and comply with conditions for total wiring distance, distance between
stations and terminal resistance values according to the communication speed. Not doing so may prevent normal communication
(see the CC-Link Master Unit Operations Manual for information on dedicated lines and wiring conditions).
8. The terminal resistance supplied with the CC-Link Master Unit must always be used for the units at both ends of the CC-Link
transmission line. If the meter is at the end of the CC-Link transmission line, connect it between the DA and DB terminals.
Note
Optional Plug-in Module: ME-0040C-SS96
DC24V
Protective
Bonding
DI1-, DI2-, DI3-, DI4-, DI5-,
are connected inside.
CC-Link
Communication
CC-Link
Communication
DA
DB
DG
SLD
FG
SLD
DG
DB
DA
DI1
DI2
DI3
DI4
DI COM
Single phase 3-wire system
qAuxiliary power supply:
100-240VAC or VDC
wFuse: 0.5A
*1 For low-voltage circuits,
secondary-side grounding of
instrument-use voltage/current
transformers is not required.
*2 Connection to NC terminal is
prohibited.
Single phase 2-wire system: With VT
Note
1. The voltage input terminal will vary depending on if it is a 3-phase, 3-wire system or otherwise.
2. VT/CT polarity errors will cause incorrect measurement.
3. Always use the grounding terminal ( ) in a grounded state. Perform grounding with a grounding resistance of 100Ω or less.
Insufficient grounding may cause erroneous operation.
4. Use shielded twisted-pair cables for transmission signal lines.
5. Use terminal resistance (120Ω) for devices at both ends of the MODBUS
®
RTU communication transmission line. These
meters can be terminated at 120Ω by short-circuiting the “T-” and “Ter” terminals.
6. Use the thickest possible grounding wire to ensure low impedance.
7. MODBUS
®
RTU transmission signal cables must not be in close proximity or bundled with high-voltage cables.
qAuxiliary power supply:
100-240VAC or VDC
wFuse: 0.5A
*1 For low-voltage circuits,
secondary-side grounding
of instrument-use
voltage/current
transformers is not
required.
*2 Connection to NC terminal
is prohibited.
Ｐ２
T/R−
T/R＋
T/R＋
T/R−
ＭＡ
ＭＢ
ＳＬＤ
ＳＬＤ
Ｔ ｅｒ
MODBUS
®
RTU
Communication
Protective
Earthing
MODBUS
®
RTU
Communication
w
k
K
L
Ｃ２
201
Load
q
(+)
(−)
＋Ｃ１
Ｃ１
＋Ｃ２
＋Ｃ３
Ｃ３
Ｐ１
Ｐ３
ＰＮ
l
K
L
k
l
21
U
V
u
v
Ｐ２
Ｐ３
w
T/R−
T/R＋
T/R＋
T/R−
ＭＡ
ＭＢ
ＳＬＤ
ＳＬＤ
Ｔ ｅｒ
Protective
Earthing
MODBUS
®
RTU
Communication
ＰＮ
Ｃ２
＋Ｃ１
Ｃ１
＋Ｃ２
＋Ｃ３
Ｃ３
Ｐ１
k
K
L
Load
l
q
(+)
(−)
Phase/Wire
Three phase 4-wire
Three phase 3-wire
Single phase 3-wire
Single phase 2-wire*
Connection
Star
Delta
Star
−
Delta
Star
Figure
1
2
3
4
5
6
Max. 277VAC (L-N)/480VAC(L-L)
Max. 220VAC (L-L)
Max. 440VAC (L-L)
Max. 220VAC (L-N)/440VAC(L-L)
Max. 220VAC (L-L)
Max. 440VAC (L-L)
Rated voltage
Fig. 6. Single phase 2-wire (star)Fig. 4. Single phase 3-wire Fig. 5. Single phase 2-wire (delta)
* For circuits removed from three phase 3-wire (delta) system, the maximum rating is 220VAC. For circuits removed from
three phase 4-wire (star), three phase 3-wire (star) and single phase 3-wire systems, the maximum rating is 440VAC.
Rated voltage for each phase/wire system
Fig. 3. Three phase 3-wire (star)Fig. 2. Three phase 3-wire (delta)Fig. 1. Three phase 4-wire (star)
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