Precautions for Correct Use of Terminal Relays

Mounting

Heat generated by the relays must be considered when mounting relays side-by-side.

Space must be provided between the relays or other methods must be taken to maintain the relays' ambient temperature at 55°C or lower (80°C for the G3S4).

Relay Replacement

Use the P6B-Y1 Removal Tool for the G6B-4CB, the G6B-4[][]ND, and the G3S4 as shown in the diagram.

Use the Removal Tool connected to the Terminal Relay for the G6D-F4B/-4B and the G3DZ-F4B/-4B.

Be sure to turn OFF the power before replacing a relay.

Relays must be inserted straight onto the socket connector pins to ensure proper connection.

G6B-48BND relays (high reliability) are connected directly to boards to increase reliability and the relays are thus not replaceable.

Do not use relays together that are different to one another in voltage.

Wiring

Be sure to connect the input terminals with the correct polarity. G3S4-D relay output terminals also have polarity that needs to be connected correctly.

Coil Voltage

Be sure not to impose voltage exceeding the permissible voltage on the coil continuously.

Do not use the relays when other inductive loads are connected in parallel with the coil input or when there are surges during power supply because the built-in diodes used to absorb surge may be destroyed.

Handling

Do not drop, shock, or vibrate the Relay excessively or apply excessive force to the terminals.

Make sure that all the Relays are properly mounted before use.

Screw Tightening Torque

Tighten each terminal screw to a torque of 0.78 to 1.18 Nm.

Tighten each mounting screw to a torque of 0.59 to 0.98 Nm.

Installation Environment

Do not install the Unit in the following locations. Otherwise, damage to the Unit may result or the Unit may malfunction.

Locations subject to direct sunlight.

Locations subject to an ambient temperature range not within 0°C to 55°C.

Locations subject to rapid temperature changes resulting in condensation or locations with relative humidity ranges not within 10% to 90%.

Locations subject to corrosive or inflammable gas.

Locations subject to excessive dust, salinity, or metal powder.

Locations subject to vibration or shock affecting the Unit.

Locations subject to water, oil, or chemical sprayed on the Unit.

Disassembly, Repair, and Modification

Do not disassemble, repair, or modify the Relay. Otherwise, an electric shock may result or the Relay may malfunction.

Mounted Relays

Note:

1.Replacement is not possible for G6B-48BND.

2.Make sure the socket voltage specifications are the same as the relay voltage specifications.

3.Do not use relays together that are different to one another in voltage.

Precautions for Correct Use

Relay Replacement

Do not remove a relay when the power is on. This may cause electric shock or a malfunction.

When replacing a relay, please use the yellow tool in the corner of the screw terminals (G70D-SOC16/FOM16 Models).

Please insert the relay perpendicularly, so that the arm does not bend. If it is not inserted correctly, it may lead to malfunction or the generation of heat.

Wiring

Please follow the voltage specifications for terminal polarity, transmission circuits and electrical wiring for I/O jumpers. If errors are made, this may lead to malfunctions.

Please do not remove a connector while the power is on, as this may lead to malfunctions.

Locking Connection Cable

Please check if connectors of all the connection cables are locked.

Installation

Do not install in the following places, as this may lead to malfunction or failure.

Location exposed to direct sunlight

Location subject to ambient temperature lower than 0 or higher than 55°C. (-25 to +55°C for the G70D-V model)

Subject to relative humidity lower than 10 or higher than 90 percent, and location subject to dramatic temperature changes causing possible condensation. (45 to 85 percent for the G70D-V model)

Locations subject to corrosive or flammable gases.

Locations subject to excessive dust, salt, or metal powder.

Locations subject to shock or vibration.

Locations subject to water, oil, or chemical reagents splashes.

Tightening Screw

Please tighten screws for all the units at the designated torque to avoid malfunctions etc.

Torque for tightening terminal screws
0.78 to 1.18 Nm

When screwing directly into the panel etc.
0.59 to 0.98 Nm

Torque for Relay Lock Fixed Screw (only for G70D-V model)
0.78 to 1.18 Nm

Cleaning

Please do not use thinners, as these will melt the surface of the equipment and cause discolorment.

Handling

Please do not drop the product, or apply excessive vibrations. This may lead to failure or malfunctions.

Dismantling

Please do not dismantle, repair or alter the product. This may hinder normal operation and could lead to dangers such as electric shock etc.