SMC Networks 50-VFE Instruction Manual page 2

50-VFE-SMY62EN
3 Installation - continued
Figure 1
3.5 Electrical Connection
Caution
 The power supply should be fitted with a switch or circuit breaker in
close proximity to the equipment and within easy reach of the operator.
It shall be clearly marked as the disconnecting device for the
equipment.
 Avoid mis-wiring, as this can cause malfunction, damage and fire to
the product.
 Use voltage that is within –15% to +10% of the rated voltage.
Application of incorrect voltage may cause malfunction or damage.
 Use electrical circuits that do not generate chattering in their contacts.
 Do not bend or pull cables repeatedly.
 The power supply should be fitted with a suitable fuse, see Table 3.
Appropriate fuse
Voltage
(Amps)
AC 100, 200, 12, 24,
（50/60Hz）
48, 110, 220, 240V
1.5
DC 24, 12, 6, 48, 110V
Table 3
 When connecting C-R element parallel to switching element, leakage
current flows through C-R element and the leakage voltage increases.
Figure 2
Ensure that the voltage leakage across the coil is as follows:
With AC coil: 15% or less of rated voltage.
With DC coil: 3% or less of rated voltage
Danger
 Disconnect power supply before removing or making electrical
connections.
 Cable entry must be made using metal conduit or cable gland, see
Figure 5 and Figure 7.
Assembly of terminals to cable
 Use cables with insulated wires, stranded, 1.04 to 2.63 mm
2 .
 Terminate wires using crimp terminals (part number V2-M4 – made by
J.S.T.MFG.CO.,LTD or equivalent) to suit M4 screws.
 Use crimping tool to attach terminals (part number YNT-1614 – made
by J.S.T.MFG.CO.,LTD or equivalent).
3 Installation - continued
 After crimping, check the crimp by slightly pulling the insulated wire.
 Internal earthing: Use at least 2.63 mm
2 or large wire
Assembly of external ground terminal to cable
 Use cables with insulated wires, stranded, 4 to 6.64 mm
2
.
 Terminate wires using crimp terminals (part number V5.5-S4 – made
by J.S.T.MFG.CO.,LTD or equivalent) to suit M4 screws.
 Use crimping tool to attach terminals (part number YNT-1210S – made
by J.S.T.MFG.CO.,LTD or equivalent).
 After crimping, check the crimp by slightly pulling the insulated wire.
Assembly of cable to valve
 Ensure cables have correct crimp terminals to suit M4 screws.
 Ensure the terminal box is locked in position.
 Remove the four M4 x 10 screws and carefully remove terminal cover
ensuring mating surfaces are not damaged.
 Feed cable through cable entry and attach wires to valve using M4 x 6
round head screws with M4 washers.
 Ensure wires are correctly connected to the corresponding terminals.
 Replace terminal cover, ensuring mating surfaces are not damaged,
and torque tighten cover screws to 1.35 to 1.45 N•m.
Figure 3
Figure 4
Metal conduit threaded type entry
 Metal conduit should be heavy gauge steel with parallel M20 thread.
 Ensure a minimum engagement of five full threads and secure with
locknut.
 During assembly, prevent excessive force being applied to the
solenoid valve, by using a spanner on the flats provided on the valve.
 In humid environment, coat the threads with a liquid gasket.
3 Installation - continued
Figure 5
Be sure to protect the cable used for earth from twisting.
Figure 6
Flameproof enclosure cable gland (not supplied) type entry
 The cable gland connector must have the following certification.
ATEX II 2 G Ex db IIC Gb
 Select cable gland connector applicable to flexible cable O/D and with
a parallel M20 or ½ NPT thread.
 Follow instructions supplied with cable gland on how to assemble to
cable.
 Ensure a minimum engagement of five full threads and secure with
locknut.
 During assembly, prevent excessive force being applied to the
solenoid valve, by using a spanner on the flats provided on the valve.
 In humid environment, coat the threads with a liquid gasket. .
 Use a cable and cable gland rated for at least +90°C for temperature
class T5.
Figure 7
3 Installation - continued
Figure 8
3.6 Lubrication
Caution
 SMC products have been lubricated for life at manufacture, and do not
require lubrication in service.
 If a lubricant is used in the system, refer to catalogue for details.
4 Settings
4.1 Manual Override
Caution
 Since connected equipment will operate when the manual override is
activated, confirm that conditions are safe prior to activation.
Non-locking push type (tool required)
 Push down the manual override button with a small screwdriver, etc.
until it stops ON.
 Hold this position for the duration of the check (ON position).
 The manual override will return when released to the OFF position.
Figure 9
Slotted locking push type (tool required)
 Push down the manual override button with a small flat head
screwdriver until it stops and turn 90° clockwise to lock (ON position).
 Turn anti-clockwise to release to the OFF position.
Figure 10
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