Mitsubishi Electric ME96 Series, Manual

Page: 32 / 40

External Dimensions, Installation and Connections
Wiring Diagrams (Continued) Wiring Diagrams (Continued)
Optional Plug-in Module: ME-4210-SS96B
Optional Plug-in Module: ME-0052-SS96
Optional Plug-in Module:
ME-0000MT-SS96 Optional Plug-in Module:
ME-0000BU-SS96 Optional Plug-in Module:
ME-0040MT2-SS96
Optional Plug-in Module: ME-0040C-SS96
1-phase 3-wire system 1-phase 2-wire system: With VT
Fig. 3. 3-phase 3-wire (star) Fig. 2. 3-phase 3-wire (delta) Fig. 1. 3-phase 4-wire (star)
Fig. 6. 1-phase 2-wire (star) Fig. 4. 1-phase 3-wire Fig. 5. 1-phase 2-wire (delta)
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 100
Ω
or less.
Insufficient grounding may cause erroneous operation.
4. Use shielded twisted-pair cables for transmission signal lines.
5. Install 120
Ω
terminating resistors between terminals “T/R+” and “T/R-“ for devices at both ends of MODBUS RTU communi-
cation line.
6. Use the thickest possible grounding wire to ensure low impedance.
7. MODBUS RTU communication signal cables must not be in close proximity or bundled with high-voltage cables.
Condition Distance
Power lines of 600 V AC or less
Other power lines
300 mm or more
600 mm or more
1. Pulse output, alarm output, and digital 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 module ME-4210-SS96B,
ME-0040C-SS96 or ME-0000MT-SS96.
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 communication lines are small signal circuits: separate from strong electrical circuits by a distance of 10 cm or more,
or 30 cm or more if laid in parallel over a long distance.
Ground the terminal before use.
7. For CC-Link communication, 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 communica-
tion (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
communication line. If the meter is at the end of the CC-Link communication line, connect it between the DA and DB terminals.
9. Communication errors may occur under the influence of high-frequency noise from other devices in the installation environ-
ment during high-speed communication (100 Mbps) via 100BASE-TX connection of MODBUS TCP.
Measures to be taken when the network system is configured to avoid the influence of high-frequency noise are shown below.
(1) Wiring connection
• When laying a twisted pair cable, do not bundle the cable together with any main circuit line or power line or lay it close to such a line.
• Keep the twisted pair cables in the duct.
(2) Communication method
• Increase the number of communication retries as needed.
• Replace the hub to be used for connection with that for 10 Mbps, and communicate at a data transmission speed of 10 Mbps.
10. Do not connect any terminal or RJ45 connector in the live state.
11. Do not insert or remove the SD memory card in the live state.
Note
Phase/Wire
3-phase 4-wire
3-phase 3-wire
1-phase 3-wire
1-phase 2-wire*
Connection
Star
Delta
Star
−
Delta
Star
Figure
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6 Max. 277 V AC (L-N)/480 V AC (L-L)
Max. 220 V AC (L-L)
Max. 440 V AC (L-L)
Max. 220 V AC (L-N)/440 V AC (L-L)
Max. 220 V AC (L-L)
Max. 440 V AC (L-L)
Rated voltage
* The circuit derived from the 3-phase 3-wire delta connection and the 1-phase 2-wire transformer circuit have the maximum rating of 220 V AC.
The circuits derived from the 3-phase 4-wire and 3-phase 3-wire star connections and 1-phase 3-wire connection have the maximum rating of 440 V AC.
Rated voltage for each phase/wire system
DICOM
24 V DC
Digital input 1
Digital input 2
Digital input 3
Digital input 4
ME-0040C-SS96
ME96SSRB-MB
ME96SSHB-MB
Protective
Earthing
Protective
Earthing
CC-Link
Communication
CC-Link
Communication
DA
DB
DG
SLD
FG
SLD
DG
DB
DA
DI1
DI2
DI3
DI4
+ C1
+
C3
C2
+ C2
C1
C3
P1
P2
PN
P3 MA
MB
SLD
SG
T/R-
T/R+
Protective
Earthing
ME-0040MT2-SS96
ETHERNET
ME96SSHB-MB
+C1
C1
+C2
C2
+C3
C3
P1
P3
PN
P2
T/R+
T/R-
SG
SLD
MA
MB
DICOM
24 V DC
Digital input 1
Digital input 2
Digital input 3
Digital input 4
DI1
DI2
DI3
DI4
2 ports
{
{
{
{
{
{
{
ME-4210-SS96B
24 V DC
CH1+
CH1−
CH2+
CH2−
CH3+
CH3−
CH4+
C2B/COM2
C2A/A2
CH4−
Analog output CH1
Analog output CH2
Analog output CH3
Analog output CH4
Pulse output 1 / Alarm output 1
Pulse output 2 / Alarm output 2
Digital input
C1A/A1
C1B/COM1
Protective
Earthing
ME96SSRB-MB
ME96SSHB-MB
+C1
+C3
C2
+C2
C1
C3
P1
P2
PN
P3 MA
MB
SLD
SG
T/R−
T/R+
DI+
DI−
Digital input 1
DI1+
DI1−
DI2+
DI2−
DI3+
DI3−
DI4+
DI4−
DI5+
DI5−
DO1+
DO1−
DO2+
DO2−
Digital input 2
Digital input 3
Digital input 4
Digital input 5
24 V DC
Digital output 1
Digital output 2
ME-0052-SS96
DI1−,DI2
−
,DI3
−
,DI4
−
,DI5
−
are connected inside.
Protective
Earthing
ME96SSRB-MB
ME96SSHB-MB
+C1
C1
+C2
C2
+C3
C3
P1
P3
PN
P2
T/R+
T/R−
SG
SLD
MA
MB
{
{
{
{
{
{
{
Protective
Earthing
ME-0000MT-SS96
ETHERNET
ME96SSRB-MB
ME96SSHB-MB
+C1
C1
+C2
C2
+C3
C3
P1
P3
PN
P2
T/R+
T/R−
SG
SLD
MA
MB
1 port
SD
CARD
Protective
Earthing
ME-0000BU-SS96
ME96SSRB-MB
ME96SSHB-MB
+C1
C1
+C2
C2
+C3
C3
P1
P3
PN
P2
T/R+
T/R−
SG
SLD
MA
MB
q
Auxiliary power supply
100 V AC to 240 V AC or 100 V DC to 240 V DC
w
Fuse (recommendation)
Rated current: 0.5 A, Rated breaking capacity: 250 V AC
1,500 A / 250 V DC 1,500 A (a UL certified product)
e If MODBUS RTU devices do not have the SG terminal,
the wiring between SG terminals is not necessary.
r Install 120
Ω
terminating resistors between terminals
‘T/R+’ and ‘T/R-’ for devices at both ends of
MODBUS RTU communication line.
*1 For low voltage circuits, it is not necessary to ground the
VT and CT secondary sides.
*2 Do not connect the NC terminal.
q Auxiliary power supply
100 V AC to 240 V AC or 100 V DC to 240 V DC
w
Fuse (recommendation)
Rated current: 0.5 A, Rated breaking
capacity: 250 V AC 1,500 A / 250 V DC
1,500 A (a UL certified product)
e
If MODBUS RTU devices do not have the
SG terminal, the wiring between SG
terminals is not necessary.
r
Install 120 Ω terminating resistors between
terminals ‘T/R+’ and ‘T/R-’ for devices at both
ends of MODBUS RTU communication line.
*1 For low voltage circuits, it is not necessary
to ground the VT and CT secondary sides.
*2 Do not connect the NC terminal.
r
e
w
q
1 2
K
L
k
l
U
V
u
v
Load
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
T/R+
T/R-
SG
SLD
MA
MB
Protective
Earthing
MODBUS RTU
Communication
(+)
(−)
r
e
w
q
1 N
K
L
k
l
Load
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
T/R+
T/R-
SG
SLD
MA
MB
Protective
Earthing
MODBUS RTU
Communication
(+)
(−)
3
K
L
k
l
MODBUS RTU
Communication
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