50-VFE-SMY62EN
Page 2 of 4
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.
Voltage
Appropriate
fuse
(Amps)
AC
（
50/60Hz
）
100, 200, 12, 24,
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
.
Ass
embly 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
Ass
embly 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
