VQZ2121-5YZ1-N7T SMC Corporation, VQZ2121-5YZ1-N7T Datasheet - Page 71

• Manufacturer Part Number: VQZ2121-5YZ1-N7T
• Description: Solenoid Valve, 5 port, body ported, 2 position sngl, 24VDC, DIN, 1/4 port
• Manufacturer: SMC Corporation
• Type: Solenoidr

Specifications of VQZ2121-5YZ1-N7T

• Brand/series: VQZ Series
• Configuration: 2-Position Single
• Number Of Ports: 5
• Primary Type: Solenoid Valve
• Size, Port: 1⁄4"
• Voltage, Coil: 24 VDC
• Operating Pressure Range: 15-100 PSI (30-100 PSI For Three Position Valves)

1. Attaching and detaching connectors
Precautions
When operating with a screwdriver, turn it gently using a watch-
maker’s screwdriver. (Torque: less than 0.1 N m)
Push type (Tool required)
Locking type (Tool required)
Without an electric signal for the solenoid valve the
manual override is used for switching the main
valve. Push type is standard. Locking type (Tool re-
quired) is available as an option.
• To attach a connector, hold the lever and connector unit be-
• To detach a connector, remove the pawl from the groove by
tween your fingers and insert straight onto the pins of the
solenoid valve so that the lever’s pawl is pushed into the
groove and locks.
pushing the lever downward with your thumb, and pull the
connector straight out.
Caution
Caution
How to Use L/M-Type Plug Connector
Cover
Groove
Pin
Series
Specific Product Precautions 1
Be sure to read this before handling.
For Safety Instructions and Common Precautions, refer to “Precautions for Handling
Pneumatic Devices” (M-03-E3A).
Manual Override
Connector
Cover
Hook
Groove
Pin
Push down on the manual override
button with a small screwdriver until
it stops. Release the screwdriver
and the manual override will return.
Push down completely on the man-
ual override button with a small
screwdriver. While down, turn
clockwise 90° to lock it. Turn it
counterclockwise to release it.
Locked position
VQZ
Lever
DC
polarity indication
Socket
Part no. DXT170-71-1
Lead wire
3. Surge voltage countermeasures
1. L/M-type plug connector
2. DIN terminal
Note) Surge voltage suppressor of varistor has residual voltage
When shutting off the DC power supply using an emergency
circuit breaker, the valve may operate incorrectly due to surge
voltage generated by other electric parts (e.g., the solenoid).
To ensure that surge does not affect the valve, take anti-surge
measures (diode for surge protection, etc.) or use a valve with
diode to prevent reverse current. (Contact SMC for model
numbers.)
<DC>
<AC>
<DC>
With light/surge voltage suppressor (YS, YOS)
Light/surge voltage suppressor (YZ)
<AC>
With light (YZ)
Caution
corresponding to the protective element and rated voltage;
therefore, protect the controller side from the surge.
Light/Surge Voltage Suppressor
Circuit example
DC power supply
Circuit breaker
Solenoid load
Valve
Valve
Varistor
q, e: Examples of anti-surge measures
(–) (+)
(–) (+)
w: Valve equipped with diode to
Varistor
prevent reverse current
Varistor
Varistor
Varistor
Back page 2
LED
NL: Neon light
Coil
Coil
Coil
Coil
Coil