SY3120 SMC, SY3120 Datasheet - Page 227

• Manufacturer Part Number: SY3120
• Description: 2 position single
• Manufacturer: SMC

M8 Connector
DIN Terminal
DIN terminal has no polarity.
í Standard type (without polarity)
í Non-polar type
1
With surge voltage suppressor („S)
With light/surge voltage suppressor („Z)
With surge voltage suppressor („R)
With light/surge voltage suppressor („U)
Solenoid valve side pin wiring diagram
1 (–) (+)
4 (WA type)
3 (+) (–)
3 (WA type)
1 (–) (+)
4 (WA type)
3 (+) (–)
3 (WA type)
W type
(Ground)
4
1 (+)
4 (WA type)
3 (–)
3 (WA type)
3 (–)
3 (WA type)
1 (+)
4 (WA type)
Varistor
Varistor
Series
Specific Product Precautions 3
Be sure to read before handling.
Refer to front matters 58 and 59 for Safety Instructions and pages 3 to 7 for 3/4/5 Port
Solenoid Valve Precautions.
3
Diode to prevent reverse current
Diode to prevent reverse current
With surge voltage suppressor (DS)
With light/surge voltage suppressor (DZ)
SY
3
Varistor
WA type
4
Varistor
Surge Voltage Suppressor
1
<For AC>
Plug-in
Circuit for non-polar (FU)
(There is no “S” option, because the generation of surge voltage is
prevented by a rectifier.)
Note) Surge voltage suppressor of varistor has residual voltage
M8 Connector
• For the standard type, connect + to 1 and – to 3 for Type W
• For DC voltages other than 12 V and 24 V, incorrect wiring will
• Please use caution regarding the allowable voltage fluctuation
• The WA-type valve cannot be grounded.
Plug-in valve has no polarity, so its possible to use for both
manifold bases for positive (SS5Y -45„) and negative its
common (SS5Y -45N„) types.
Grommet, L/M Plug Connector
With light
DIN Terminal
With light (DZ)
according to polarity, while + to 4 and – to 3 for Type WA.
case damage to the surge suppressor circuit.
because there is about a 1 volt drop for a valve with polarity
protection. (For details, refer to the solenoid specifications for
the individual valve.)
corresponding to the protective element and rated voltage;
therefore, protect the controller side from the surge
voltage. The residual voltage of the diode is approximately
1 V.
(YZ)
Varistor
GZ
LZ, LOZ, MZ, MOZ
3
5
(-) (+)
(+) (-)
Varistor
Varistor
3
5
NL: Neon ball
335
SJ
SY
SV
SYJ
SZ
VP4
S0700
VQ
VQ4
VQ5
VQC
VQZ
SQ
VFS
VFR
VQ7