Thin-type Ionizer ER-VW

用途

Connector attached cable

ER-VWCC□

Mini line filter

・ER-AF10
・ER-AF20

*The photograph shows ER-AF10

Discharge needle unit

ER-VWANT

I/O Circuit and Wiring diagrams

I/O circuit diagram

*1

Symbols・・・

D₁ : Reverse supply polarity protection diode
D₂, D₃ : Input protection diode
Z_D1, Z_D2, Z_D3 : Surge absorption zener diode
Tr₁, Tr₂, Tr₃ : NPN output transistor

Connector terminal arrangement

Input signal condition

Note:
Repeated control using “Discharge halt input” input should be carried out at 1 Hz or less.
Continuous discharging for 2 sec. or more is required for stable sensing of check output.
If using with repeated control operations that include discharges of 2 sec. or less, use continuous discharges of 2 sec. or more to check the check output when carrying out maintenance.

Cautions For Use

Mounting

• When installing the unit to its mount, use M4 pan head screws (please arrange separately), and tighten them at a torque of 0.5 N·m or less.
• Be sure to connect the F.G. terminal to ground. If the unit is not properly grounded, charge removal performance will be severely reduced. (Use a type D ground or a common power supply ground.)
• If grounding to a common power supply ground, you can use the lead wire for connecting the F.G. that is supplied with the unit to make the connection. 0 V ground: Connect pins 2 and 3 of the end connector (9-pin) to the lead wire for connecting the F.G.. +V ground: Connect pins 1 and 3 of the end connector (9-pin) to the lead wire for connecting the F.G..
  (If the ground is not connected correctly, operating problems or accidents may occur, so be sure to check the usage conditions and connect the ground in such a way that the power supply does not become shorted.)

Adjusting the air blowing direction

• After screw down the nozzle to loosen it, point it toward the object to be charge removal. After adjusting the position, securely tighten the nozzle by hand until it is touching the enclosure, and check that the nozzle does not move. If the nozzle is not installed correctly, it will adversely affect charge removal performance and the nozzle may also fall out.
• The diagram at right shows the range of adjustment for the nozzles.

Piping

• The tube that is installed to the air intake of this device should have an outside diameter of 6 mm 0.236 in and an inside diameter of 4 mm 0.157 in.
• The air that is supplied to this product should be dried clean air that has been processed through an air dryer (dew point around –20 ℃ –4 ℉) and an air filter (mesh size around 0.01μm 0.0004 mil).
• Increasing the length of the air hose from the air supply equipment or adding pneumatic equipment (such as a needle valve, governor or miniature filter) will cause drops in the pressure of the air supplied to the device, and so do not allow the air pressure to drop below sufficient levels. (Check the pressure applied to the device at the air intake of the device.)
  Furthermore, select air pressure equipment that is appropriate for the level of supplied air flow.

Connections

• Use the ER-VWAR80 joint kit (optional) to connect the devices together. (1 kit is needed for each pair of devices.) Up to a maximum of 5 units can be connected together (including this unit). When using units that are connected together in this way, attach the supplied end connector to the connector of the last device in the series. Furthermore, also connect the end connector to a device if not connecting the device to any other devices.
• The air joint (included in the joint kit) should be tightened at a torque of 0.5 N·m or less.
• When connecting devices together, check that the air pressure values at the air intakes of each device are appropriate for the usage conditions.

Maintenance

• Since the removal discharge effect will deteriorate if dirt is stuck to the tip of the discharge needle, clean the discharge needle periodically.
• The maintenance required depends on the environment of use. As a reference, the maintenance should be done once in a week.
• The discharge needle is a part having a product life time. It is recommended that the needle should be replaced, as a reference, after 10,000 hours in use. When replacing it, replace the whole unit (ER-VWANT).

Cleaning procedure and discharge needle replacement procedure

1. Check that the power is turned off.
2. Check that no air is being supplied.
3. Turn the nozzle counterclockwise to remove it.
4. Replace the discharge needle unit, or use a cotton swab moistened in alcohol to clean the discharge needle and the area around it.
For the needle discharge unit while running it along the guide at the side of the opening.
5. After cleaning, turn the nozzle clockwise to install it.
Securely tighten the nozzle by hand until it is touching the enclosure, and check that the nozzle does not move.
If the nozzle is not installed correctly, it will adversely affect charge removal performance and the nozzle may also fall out.

Others

• This product has been developed / produced for industrial use only.
• Do not use this product beyond its rated specifications. Doing so can cause product breakdown, non-function, or damage. Furthermore, it will also cause a marked reduction in product life.
• Never disassemble, repair, modify, or misuse this product, as this can cause an accident or malfunction.
• Do not throw this product into fire: it may explode or generate poisonous gas.
• Since this product emits ozone into the atmosphere, circulate air to prevent foul smells. If ozone lingers for long periods, metals, etc. may oxidize / decay. Furthermore, do not try to confirm that foul smells are caused by the ozone by drawing your face near the nozzle outlet and air outlet: you may hurt your nose, throat, etc.
• Do not use this product in steamy or dusty places, in places where water and oil splash, or where spatter flies when welding.
• Make sure that the power supply is off while wiring and inspection. Otherwise, there is a danger of accident, electric shock or malfunction.
• Do not use during the initial transient time (0.5 sec.) after the power supply is switched on.
• Verify that the supply voltage variation is within the rating.
• If the power supply is switched on immediately after being switched off, fault output may be generated. After the power supply is switched off, wait at least 1 sec. before switching it on again.
• If power is supplied from a commercial switching regulator, ensure that the frame ground (F.G.) terminal of the power supply is connected to an actual ground.
• In case a surge is generated in the used power supply, connect a surge absorber to the supply and absorb the surge.
• Do not run the wires together with high-voltage lines or power lines or put them in the same raceway. This can cause malfunction due to induction.
• Confirm the wiring and piping state before supplying power or air. Wrong wiring and piping may cause malfunction.
• Use air (dry, clean air) for the fluid. Any fluid other than air (dry, clean air) or even air containing corrosive gas may cause an accident or malfunction.
• Do not use air that contains foreign particles, e.g. carbon dust, dust, water or oil. Since these substances may cause electric shock or malfunction, take appropriate countermeasures, e.g. install an airfilter, air-drier, etc.
• Do not use this product for any purpose other than charge removal.
• Do not cover the ionized air outlets of the nozzles. Ozone may build up and operating problems or failure may occur. (The air monitoring function checks if the pressure of air supplied to the unit drops, so if the ionized air outlets of the nozzles are covered, it will not detect this and will not cause charge removal operation to stop.)
• This product is CE/UKCA compliant and complies with EMC directives/EMC regulations. The immunity adopted by this product should be conformable to EN 61000-6-2. In order for such immunity to be conformable to this standard, all wires connected to this product should be limited in length to less than 10 m 32.808 ft.
• When this product is no longer usable or required, dispose of properly as industrial waste.