VR51-TF2Z003EN-A
Page 1 of 3
Instruction Manual
Two Hand Control Valve
Series VR51
The intended use of this product is a logic unit for use in two-hand control
circuits according to ISO 13851 type IIIA. When properly integrated into
a suitable safety system VR51 is compatible for use in systems up to
Category 1 as defined by EN ISO 13849-1:2015.
1 Safety Instructions
These safety instructions are intended to prevent hazardous situations
and/or equipment damage. These instructions indicate the level of
potential hazard with the labels of “Caution,” “Warning” or “Danger.”
They are all important notes for safety and must be followed in addition
to International Standards (ISO/IEC)
*1)
, and other safety regulations.
*1)
ISO 4414: Pneumatic fluid power - General rules relating to systems.
ISO 4413: Hydraulic fluid power - General rules relating to systems.
IEC 60204-1: Safety of machinery - Electrical equipment of machines.
(Part 1: General requirements)
ISO 10218-1: Robots and robotic devices - Safety requirements for
industrial robots - Part 1: Robots.
This manual contains essential information for the protection of users and
others from possible injury and/or equipment damage.
•
Refer to product catalogue, Operation Manual and Handling
Precautions for SMC Products for additional information.
•
Read this manual before using the product, to ensure correct handling,
and read the manuals of related apparatus before use.
•
Keep this manual in a safe place for future reference.
•
To ensure safety of personnel and equipment the safety instructions in
this manual must be observed, along with other relevant safety
practices.
Caution
Caution indicates a hazard with a low level of risk which, if
not avoided, could result in minor or moderate injury.
Warning
Warning indicates a hazard with a medium level of risk
which, if not avoided, could result in death or serious injury.
Danger
Danger indicates a hazard with a high level of risk which, if
not avoided, will result in death or serious injury.
Warning
•
The compatibility of the product is the responsibility of the person
who designs the equipment or decides its specifications.
Since the product specified here is used under various operating
conditions, its compatibility with specific equipment must be decided
by the person who designs the equipment or decides its specifications
based on necessary analysis and test results. The expected
performance and safety assurance of the equipment will be the
responsibility of the person who has determined its compatibility with
the product. This person should also continuously review all
specifications of the product referring to its latest catalogue information,
with a view to giving due consideration to any possibility of equipment
failure when configuring the equipment.
•
Only personnel with appropriate training should operate
machinery and equipment.
The product specified here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment
including our products must be performed by an operator who is
appropriately trained and experienced.
•
Do not service or attempt to remove product and machinery/
equipment until safety is confirmed.
1)
The inspection and maintenance of machinery/equipment should
only be performed after measures to prevent falling or runaway of
the driven objects have been confirmed.
1 Safety Instructions - continued
2) When the product is to be removed, confirm the safety measures as
mentioned above are implemented and the power from any
appropriate source is cut, and read and understand the specific
product precautions of all relevant products carefully.
3) Before machinery/equipment is restarted, take measures to prevent
unexpected operation and malfunction.
•
Do not use this product outside of the specifications.
Contact SMC beforehand and take special consideration of safety
measures if the product is to be used in any of the following
conditions.
1) Conditions and environments outside of the given specifications or
use outdoors or in a place exposed to direct sunlight.
2) Installation on equipment in conjunction with atomic energy,
railways, air navigation, space, shipping, vehicles, military, medical
treatment, combustions and recreation, or equipment in contact with
food or beverages, emergency stop circuits, clutch and brake circuits
in press applications, safety equipment or other applications unsuitable
for the specification described in this document.
3) An application which could have negative effects on people,
property or animals requiring special safety analysis outside the scope
of ISO 13851 described in this document.
4) Use in an interlock circuit, which requires the provision of double
interlock for possible failure by using a mechanical protective function,
and periodical checks to confirm proper operation.
•
Always ensure compliance with relevant safety laws and
standards.
•
All electrical work must be carried out in a safe manner by a qualified
person in compliance with applicable national regulations.
Caution
•
The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in
manufacturing industries.
•
If considering using the product in other industries, consult SMC
beforehand and exchange specifications or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
2 Specifications
Warning
Special products (-X) might have specifications different from those
shown in this Instruction Manual. Contact SMC for specific drawings.
2.1 Valve specifications
Fluid
Air
Operating pressure [MPa]
0.25 to 1.0
Proof pressure [MPa]
1.5
Ambient and fluid temperature [°C]
-5 to 60 (with no freezing)
Flow
characteristics
C[dm
3
/(s·bar)]
b
Cv
P(1+2) to A(2)
0.3
-
-
A(2) to R(4)
1.0
0.12
0.25
Maximum operating frequency [cpm]
10
Minimum operating frequency
Once every 30 days
Impact / vibration resistance [m/s
2
]
Note 1)
1000 / 50
Mounting orientation
Unrestricted
Air quality
5 µm filtration or smaller
Environment
Indoor use only
Port size
Metric
Ø6
Inch
Ø1/4
Applicable tube material
Note 2)
Nylon, Soft nylon, Polyurethane,
Flame resistant (FR) soft nylon,
FR double layer,
FR double layer polyurethane
Weight [g]
340
Accessory
option
Silencer
Part No.: AN101-01
Bracket
Part No.: VR51B
B
10D
[cycles]
1,000,000
Note 3)
Mission time [years or cycles]
Maximum 20 years or when the
number of cycles = B
10D
, whichever
occurs first
Note 4)
Table 1.
Note 1) Impact resistance: No malfunction occurred when tested in the axial
direction and right angle to the valve.
Vibration resistance: No malfunction occurred in a round sweep test
between 10 to 150 Hz. The test was performed in the axial direction and
right angles to the valve axis, 20 times for each condition.
Note 2) In the case of soft nylon or polyurethane tubing, use caution when the
maximum operating pressure of the tubing is used.
Note 3) The B
10D
figure is estimated from SMC life test.
2 Specifications - continued
Note 4)
The period of intended use of the product shall not exceed the mission time
(T
M
). The user is expected to calculate the product T
10D
according to ISO
13849 based on the stated B
10D
and operating cycles (n
op
) of the
application. The period of intended use of the product shall be the shorter
of T
M
or T
10D
and neither is a guarantee of the actual life of the product.
After the period of intended use has expired the product shall be replaced
with a new unit.
2.2 Pneumatic symbol
Figure 1.
2.2.1 Typical circuit
Figure 2.
2.2.2 Circuit functional description / timing
•
When there is a time delay of less than 0.5 seconds between the two
air signal inputs, the VR51 provides an output signal.
•
VR51 output stops when one of the two air signal inputs stops.
•
Two simultaneous air signals reset the output.
Figure 3. Output time delay
2.2.3 Output timing delay
•
Example for typical piping, the exact delay will depend on the application.
Figure 4. Output timing delay from supply pressure
2 Specifications - continued
2.3 Declaration of conformity, refer to original for translations on
www.smcworld.com
Figure 5. EU DoC VR51-TF1Z181EU
Figure 6. EU DoC VR51-TF1Z181EU
Conditions
1, Piping: Tube: T0604 with I.D. Ø4mm
2, Piping length:
Primary side 1m
Secondary side 3m
3, Connected equipment: 1 Air operated
valve
ORIGINAL INSTRUCTIONS
P
1
P
2
R(4)
A(2)
The output delay
depends on the
piping arrangement
and the operating
pressure. The
relationship between
output timing delay
and pressure is given
in 2.2.2.
M
a
xim
u
m
o
u
tp
u
t
ti
m
ing
d
e
lay
[s]
Supply pressure [MPa]
Output
No
output
Output delay
Two hand control valve (VR51)
Push button
operated valve
Push button
operated valve
Air operated
valve
Cylinder
