G7@ Relay I/O Blocks and Cables
G70A I/O Terminal Bases
G70D Relay Output Terminal Blocks
G70R Relay Output Terminal Block
G7TC Relay I/O Terminal Blocks
G79 Cables
XW2@ I/O Terminal Blocks and Cables
XW2B I/O Terminal Blocks
XW2C I/O Terminal Blocks
XW2D I/O Terminal Blocks
XW2Z Cables
I/O Connecting Cable Selection Guide
383
386
387
395
398
401
403
405
408
409
412
416
Wiring Systems
383
Programmable
Controllers
Wiring Systems
Wiring Systems
Introduction to I/O Blocks, I/O Terminals, and I/O Block Bases
G70D, G7TC, and G70A-ZOC16
Unify Wiring with One Connecting Cable.
Simplify Connections to the Controller and Reduce Wiring in the Control Panel.
Improve Surge Suppression and Increase Capacity at the Same Time.
G70D
Compact Output Terminals Save Control Panel Space
• The G70D Series consists of 16-point Relay Output Terminals.
• Two configurations are available: The standard low-profile version is just 156
×
51
×
39 mm (W× D× H) and the vertical version
is just 135
×
46
×
81 mm (W× D× H).
• Relay output models are equipped with G6D power relays (low-profile: SPST-NO 3 A/common; vertical: SPST-NO 3 A/output)
and power MOSFET relay models are equipped with G3DZ power MOSFET relays (SPST-NO 0.3 A/output).
• The flat models have 2 common terminals. The vertical models have 16 independent outputs.
Note:
See page 392 and page 387 for more details.
Vertical models
(G70D-VSOC16/VFOM16)
Low-profile models
(G70D-SOC16/FOM16)
G7TC
Both Input Blocks and Output Blocks are Available. G7TC I/O Blocks are Ideal as Controller Interfaces.
• Output Blocks with 8 or 16 outputs are available. Input Blocks
with 16 inputs are available.
• The 16-point Output Blocks are available with PNP circuits.
• The 16-point models are just 182
×
85
×
68 mm (W× D× H)
and the 8-point models are just 102
×
85
×
68 mm
(W× D× H).
• Equipped with G7T I/O Relays (SPST-NO 5 A/output).
• G7TC models conform to UL and CSA standards.
• 16-point models with independent terminals.
• Models are also available with G3TA Solid State Relays.
8-point model
16-point model
Note:
See page 398 for more details.
G70A-ZOC16
High-capacity Relay Sockets can be Equipped with G2R (SPDT) Relays.
• Sixteen relay terminal sockets for output relays only.
• Models are available with PNP circuits.
• Compact case is just 234
×
75
×
64 mm (W× D× H).
• Install OMRON G2R Power Relays, G3R Solid State Relays,
G3RZ Power MOSFET Relays, and H3RN Timers as
required. (Relays and Timers are sold separately.)
• High-capacity 10-A Terminal Block
• Conforms to VDE standards.
• Sixteen independent terminals
Note:
See page 386 for more details.
*Relays are sold separately.
384
Programmable Controllers
G70D-SOC08
Space-saving and Labor-saving 8-point Output Block
• Compact terminal block is just 68
×
80
×
44 mm (W
×
H
×
D,
when mounted upright).
• Independent contacts and shorting bars allow easy common
connections.
• The common can now be connected with a shorting bar in the
G70D-SOC08 and G70R-SOC08.
• No tools are required to remove Relays, so Relay replace-
ment is easier than ever.
• The attached terminal cover prevents shocks.
• Equipped with operation indicators.
• Built-in diodes absorb coil surge.
• Mount either to DIN rail or via screws.
Note:
See page 389 for details.
G70R-SOC08
Space-saving and Labor-saving 8-point Output Block
• Compact terminal block is just 136
×
80
×
55 mm (W
×
H
×
D, when mounted upright).
• Independent contacts and shorting bars allow easy common
connections.
• The common can now be connected with a shorting bar in the
G70D-SOC08 and G70R-SOC08.
• No tools are required to remove Relays, so Relay replace-
ment is easier than ever.
• The attached terminal cover prevents shocks.
• Built-in diodes absorb coil surge.
• Mount either to DIN rail or via screws.
Note:
See page 395 for details.
G70D, G7TC, and G70A-ZOC16
385
Programmable
Controllers
G70A-ZOC16
I/O Terminal Bases
16-point I/O Block accepts Various Devices
such as G2R Relays, Solid State Relays, and
Timers for More System Flexibility
• Connects to a PLC or SBC with a simple snap-in
connector.
• The G70A-ZOC16-3 can be combined with a DRT1-
OD32ML I/O Terminal for DeviceNet connectivity or
an SRT2-VOD16ML Connector Terminal for Com-
poBus/S connectivity.
• SPDT relays can be mounted.
• Conforms to VDE (VDE0106) and CE standards.
• Electric-shock preventive (finger-touch protection)
terminal block
• DIN rail mountable
• High-capacity (10 A) terminal block
• Excellent noise resistance characteristics
• Built-in diodes for coil surge suppression
Ordering Information
Internal I/O circuit common
NPN compatible (+ common)
PNP compatible (– common)
Rated voltage
24 V DC
24 V DC
Model
G70A-ZOC16-3
G70A-ZOC16-4
Compatible Relays/Timers (sold separately)
G2R-1-S (SPDT), G2R-1-SN (SPDT with indicator), G3R-
OA202SZN, G3R-OA202SLN, G3R-ODX02SN, G3R-OD201SN,
G3RZ-201SLN, H3RN-1, and H3RN-11
Note:
Each relay to be mounted must incorporate a coil that has proper specifications within the maximum rated voltage range.
Specifications
Ratings/Characteristics
Item
Contact resistance
Permissible current
Max. operating voltage
Terminal
Dielectric strength
block
Insulation resistance
Vibration resistance
Shock resistance
Noise immunity
Ambient temperature
Ambient humidity
Coil surge absorption element
Protection against reversed connection
Tensile strength
I/O terminal tightening torque
Weight
G70A-ZOC16-3 and G70A-ZOC16-4
10 mΩ (excluding the resistance of the relay to be used)
10 A
380 V AC, 125 V DC
4,000 V AC, 50/60 Hz for 1 min between connector and output terminals
2,000 V AC, 50/60 Hz for 1 min between output terminals
250 V AC, 50/60 Hz for 1 min between connectors
1,000 MΩ (at 250/500 V)
Malfunction: 10 to 61.2 to 10 Hz, 0.1-mm double amplitude 0.2; 61.2 to 150 to 61.2 Hz, 14.7 m/s
2
Malfunction: 200 m/s
2
(approx. 20G)
Noise level: 2.0 kV; pulse width: 100 ns to 1
μs
Operating: 0° C to 55° C (with no condensation or icing)
Operating: 35% to 85%
Diode: 1 A, 400 V
Diode (2 A, withstand inverse voltage: 40 V)
No damage when a tensile force of 49 N is applied for 1 second in any direction
Tightening strength: 0.59 N⋅ m; Tensile strength 49 N for 1 min
Approx. 400 g
Accessories (Order Separately)
G79 Connecting Cables
Cable Type
Cable with Loose Wire and Crimp
Terminals
Cable with Loose Wires
Cable with Three Connectors (1:3)
Cable with Two Connectors (1:2)
Cable with One Connector (1:1)
Model
G79-Y@C
G79-A@C
G79-@C-@-@
G79-@C-@
G79-@C
Short Bar
Applicable I/O block
G70A-ZOC 16-4
Model
G78-16-E
Note:
See pages page 401 for details.
386
Programmable Controllers
Relay output terminal blocks
Compact, Low-profile 16-point Output Block
• Compact terminal block is just 156
×
51
×
39 mm
(W
×
D
×
H)
• Models with Power MOSFET Relays are available
for high-frequency switching of AC or DC loads.
• Wire loads directly from terminal blocks; no need for
relaying.
• Operation indicators show each I/O signal’s
ON/OFF status at a glance.
• The G70D-SOC16 and G70D-FOM16 can be
combined with a DRT1-OD32ML I/O Terminal for
DeviceNet connectivity or an SRT2-VOD16ML
Connector Terminal for CompoBus/S connectivity.
• Equipped with surge-absorbing diodes.
• Relay Removal Tool included.
• Mount either to DIN rail or via screws.
Ordering Information
Classification
Relay outputs
Power MOSFET relay outputs
Points
16 points (SPST-NO
×
16)
Internal output circuit common Rated voltage
NPN compatible (+common)
24 V DC
PNP compatible (– common)
NPN compatible (+ common)
PNP compatible (– common)
Model
G70D-SOC16
G70D-SOC16-1
G70D-FOM16
G70D-FOM16-1
These are all non-standard model and require a special order. Contact your OMRON representative for details on availability.
Specifications
Ratings
Relay Specifications
Note:
The following specifications apply to G6D Relays mounted in a
G70D Output Block and not the G6D Relay itself.
Coil Ratings (per G6D Relay)
Rated voltage
Rated current
Coil resistance
Must-operate voltage
Must release voltage
Max. voltage
Power consumption
24 V DC
10.5 mA
2,880
Ω
70% max. of rated voltage
10% min. of rated voltage
130% of rated voltage
Approx. 200 mW
Contact Ratings (per G6D Relay)
Load
Rated load
Rated carry current
Max. switching voltage
Max. switching current
Min. permissible load (reference value)
(see note 2)
Life expectancy
Resistive load (cosφ = 1)
3 A at 250 V AC, 3 A at 30 V DC
3A
250 V AC, 30 V DC
3A
10 mA at 5 V DC
Electrical: 100,000 operations min. (un-
der and at the rated load at 1,800 oper-
ations/hr)
Mechanical: 20,000,000 operations
min. (at 18,000 operations/hr)
Note: 1.
The must-operate voltage is 75% or less of the rated voltage
if the relay is mounted upside down.
2.
Rated current and coil resistance were measured at a coil
temperature of 23° C with a tolerance of
±10%.
3.
Operating characteristics were measured at a coil tempera-
ture of 23° C.
4.
The maximum allowable voltage is the maximum value of the
allowable voltage range for the relay coil operating power sup-
ply. There is no continuous allowance.
5.
The rated current includes the terminal’s LED current.
Note: 1.
Up to 3 A can be carried by the power supply terminals for
outputs (terminals B0 to B7.)
2.
This value is for a switching frequency of 120 times per
minute.
Relay output terminal blocks
387
Programmable
Controllers
G70D
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