SMC Networks VQC1000, Operation Manual

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No.VQC1000V-OMM0002-B
Design/Selection
1. Use this product within the specification range.
Using beyond the specified specifications range can cause fire,
malfunction, or damage to the system.
Confirm the specifications when operating.
2. When using for an interlock circuit:
•
Provide a multiple interlock system which is operated by
another system (such as mechanical protection function).
•
Perform an inspection to check that it is working properly.
This may cause possible injury due to malfunction.
1. When it is UL compliant, use a class 2 power supply unit in
accordance with UL1310 for a combined direct current
power supply.
2. Use this product within the specified voltage range.
Using beyond the specified voltage range is likely to cause the
units and connecting devices to be damaged or to malfunction.
3. The power supply for the unit should be 0 V as the standard
for both power supply for output as well as power supply
for control/input.
4. Do not install a unit in a place where it can be used as a
foothold.
Applying any excessive load such as stepping on the unit by
mistake or placing a foot on it, will cause it to break.
5. Keep the surrounding space free for maintenance.
When designing a system, take into consideration the amount
of free space needed for performing maintenance.
6. Do not remove the name plate.
Improper maintenance or incorrect use of instruction manual
can cause failure and malfunction. Also, there is a risk of losing
conformity with safety standards.
7. Beware of inrush current when the power supply is turned
on.
Some connected loads can apply an initial charge current which
will trigger the over current protection function, causing the unit
to malfunction.
Mounting
1. When handling and assembling units:
• Do not touch the sharp metal parts of the connector or
plug.
• Do not apply excessive force to the unit.
The connecting portions of the unit are firmly joined with seals.
• When joining units, take care not to get fingers caught
between units.
Injury can result.
2. Do not drop, bump, or apply excessive impact.
Otherwise, the unit can become damaged, malfunction, or fail
to function.
3. Observe the tightening torque range.
Tightening outside of the allowable torque range will likely
damage the product.
IP67 protection class cannot be guaranteed if the screws are
not tightened to the specified torque.
4. When lifting a large size manifold solenoid valve unit, take
care to avoid causing stress to the valve connection joint.
The connection parts of the unit may be damaged.
Because the unit may be heavy, carrying and installation should
be performed by more than one operator to avoid strain or
injury.
5. When placing a manifold, mount it on a flat surface.
Torsion in the whole manifold can lead to trouble such as air
leakage or defective insulation.
Wiring
1. Confirm grounding to maintain the safety of the reduced
wiring system and for anti-noise performance.
Provide a specific grounding as close to the unit as possible to
minimize the distance to grounding.
2. Avoid repeatedly bending or stretching the cable and
applying a heavy object or force to it.
Wiring applying repeated bending and tensile stress to the
cable can break the circuit.
3. Avoid miswiring.
If miswired, there is a danger of malfunction or damage to the
reduced wiring system.
4. Do not wire while energizing the product.
There is a danger of malfunction or damage to the reduced
wiring system or input/output equipment.
5. Avoid wiring the power line and high-pressure line in
parallel.
Noise or surge produced by signal line resulting from the power
line or high pressure line could cause malfunction.
Wiring of the reduced wiring system or input/output device and
the power line or high-pressure line should be separated from
each other.
6. Confirm the wiring insulation.
Defective insulation (contact with other circuits, improper
insulation between terminals, etc.) may cause damage to the
reduced wiring system or input/output device due to excessive
voltage or current.
7. When a reduced wiring system is installed in machinery/
equipment, provide adequate protection against noise by
using noise filters, etc.
Noise in signal lines may cause malfunction.
8. When connecting wires of input/output device or handheld
terminal, prevent water, solvent or oil from entering inside
from the connecter section.
This can cause damage, equipment failure, or malfunction.
9. Avoid wiring patterns in which excessive stress is applied
to the connector.
This may cause malfunction or damage to the unit due to
contact failure.
EX600 Precautions
VQC1000/2000 series
Specific Product Precautions 5
Be sure to read this before handling