Koganei PA Solenoid valve Instruction manual

INSTRUCTION MANUAL Ver.1.0
BK-UV002 Ver.1.0
SOLENOID VALVES PA PB SERIES
Air Valve

Handling Instructions and Precautions
Solenoid
DC24V
Color of lead wire: Black
Color of lead wire: Red
(Connector interior)
Double solenoid
(Connector interior)
AC100V, 200V
(Connector interior)
Single solenoid
Double solenoid
(Connector interior)
Note:Since there is no polarity, the valve can be
used for either COM or COM.
qEnd cover mounting screw
wMounting screw
Switching pin insert
for double solenoid
Switching pin insert
for single solenoid
Switching
pin
End cover
Female thread block (plate)
End cover
End cover rotated
180 degrees
D
Double solenoid condition
S
solenoid condition
Mounting screw
Model label
Internal circuit
Single solenoid
Cautions: 1. Do not apply megger between the
pins.
2. Leakage current inside the circuit
could result in failure of the solenoid
valve to return, or in other erratic
operation. Always use it within the
range of the allowable leakage current
in electrical specifications listed on
p.671, 685. If circuit conditions, etc.
cause the current leakage to exceed
the allowable leakage current, consult
us.
3. For double solenoid valves,
avoid energizing both solenoids
simultaneously.
Method for Switching from Double to Single
For the PA series
Rotate the end covers on the PA F6 and PA
A6 models (2-position double solenoid
valves) 180 degrees to use them as single
solenoid valves (this change is not possible on
3-position valves). Note that the PA F5 and
PA A5 models (2-position single solenoid
valves) are designed specifically for use as
single solenoid valves, and cannot be used as
double solenoid valves.
Switching from double solenoid valves
(at shipping) to single solenoid valves
As shown in the illustration below, a D
marked on the end cover on the model label
surface side means that the unit is set for a
double solenoid function. To convert to the
single solenoid valve function, use a Phillips
screwdriver to remove the end cover, rotate it
180 degrees, and set the mark to S. The
recommended tightening torque for the end
cover mounting screw is as shown below.
Cautions: 1. Do not remove the end cover except
when switching between single and
double solenoids.
2. When mounting the end cover,
confirm that the gasket is attached
before proceeding with the mounting.
Recommended tightening torque for mounting
screws: 88.3N cm {9.0kgf cm} [7.8in lbf]
For the PB series
Change the switching pin on the PB C6
model (2-position double solenoid valve) to
use as a single solenoid valve (this change is
not possible on the 3-position valve).
Note that the PB C5 model (2-position single
solenoid valve) is designed specifically for use
as a single solenoid valve, and cannot be
used as a double solenoid valve.
Switching from double solenoid valves
(at shipping) to single solenoid valves
As shown in the illustration below, use a
Phillips screwdriver to remove the female
thread block or plate of the unit’s front surface
output port 4(A) and 2(B), then remove the
end cover, remove the switching pin from the
lower level hole and insert it in the upper level
hole, to convert to the single solenoid function.
The recommended mounting screw tightening
torque for the end cover and the female thread
block or plate are as shown below.
Cautions: 1. Do not remove the end cover except
when switching between the single
and double solenoids.
2. When mounting the end cover and the
female thread block or plate, confirm
that the gasket is attached before
proceeding with the mounting.
Recommended tightening torques for mounting
screws
q End cover mounting screw : 39.2N cm {4.0kgf cm}
[3.5in lbf]
w Mounting screw : 137.3N cm {14.0kgf cm}
[12.2in lbf]

Mounting screw
Pilot switching pin
Switching pin insert
for internal pilot
Switching pin insert
for external pilot
Plate or female thread block
q
e
w Mounting screw
Solenoid cover
Pilot valve
14 (SA) side
Pilot valve
12 (SB) side
14A 12B
Manual override
cover
Manual
override
14 (SA) side
Manual override
12 (SB) side
Override operation portion
Inner diameter 3.5 [0.138in.]
Depth 8 [0.31in.]
DIN Connector
Terminal cover
Screwdriver
(blade width of
about 4mm
[0.16in.])
Terminal body
Screwdriver
(blade width
of about 3mm
[0.12in.])
Lead wire
Terminal
body
Terminal cover
Cable gasket
Washer
Cable gland
Cable
(Outer diameter 4 7mm
[0.16 0.27in.])
Terminal q
Terminal q
Terminal w
Terminal e
Terminal e
Terminal w
Terminal body
(solenoid side)
Cover mounting screw Note
Note: The appropriate tightening torque for the cover
mounting screw is 29.4N cm {3kgf cm}
[2.6in lbf].
Pilot air switching method
Change the switching pins on the PB G and
PB V models (external pilot positive pressure
valves and vacuum valves) to use as an internal
pilot positive pressure valve. Note that the PB
model (internal pilot valve) is for internal pilot use
only, and cannot be used as an external pilot
positive pressure or vacuum valve.
Switching from double solenoid valves
(at shipping) to single solenoid valves
As shown in the illustration below, use a Phillips
screwdriver to remove the female thread block or
plate of the unit’s top surface side outlet port 4(A)
and 2(B), and then remove the switching pin
from its position (lower level) for the external pilot
specification and insert it in the position (upper
level) for the internal pilot specification, to
convert to the internal pilot specification. The
recommended mounting screw tightening torque
for the female thread block or plate is as shown
below.
(PB series only)
Caution: When mounting the female thread block or
plate, confirm that the gasket is attached
before proceeding with the mounting.
Recommended tightening torque for
mounting screws: 137.3N cm {14.0kgf cm}
[12.2in lbf]
Pilot valve replacement
Removal
Hand-open the solenoid cover at q and use a
small screwdriver to remove the mounting
screws w mounting the pilot valve in place.
Use pliers to hold and pull out the pilot valve’s
flange e, and then remove the pilot valve.
Caution: The maximum height of the cover when
open is 48mm [1.89in.] from the top
surface. Ensure enough space for
maintenance, etc.
Recommended tightening torque for
mounting screws: 14.7N cm {1.5kgf cm}
[1.3in lbf]
Installation
Confirm the installation of the pilot valve
gasket, and then firmly tighten the mounting
screws to the recommended torque below.
Lastly, firmly close the solenoid cover.
Manual override (for both locking and
non-locking types)
To lock the manual override, use a small
screwdriver to open the manual override
cover. In that position, press it all the way
down and turn it 90 degrees in the clockwise
direction to lock. When in the lock position,
turning the manual override 90 degrees in the
counterclockwise direction releases a spring
on the manual override, returns it to the
normal position, and releases the lock. When
the manual override is not turned, this type
acts just like the non-locking type.
Manual override
Cautions: 1. The PA/PB series valves are pilot type
solenoid valves. As a result, the
manual override cannot switch the
main valve without air supplied from
the 1(P) or X(P2) port.
2. Always release the lock of the manual
overrides before commencing normal
operation.
3. Do not attempt to operate the manual
override with a pin or other object
having an extremely fine tip. It could
damage the manual override button.
4. Caution should be exercised to avoid
rotating the manual override too far. It
could damage the button.
5. If operating the solenoid valve’s
manual override for maintenance, etc.,
check before restarting operations that
the solenoid valve’s manual override
has returned to the normal position,
and that the main valve is in the
required position for switching.
6. The maximum height of the cover
when open is 8.4mm [0.331in.] from
the top surface of the cover.
Wiring instructions
Remove the cover mounting screw and lift the
terminal cover off from the solenoid valve.
Use a screwdriver, etc. to press hard against
the head of the terminal body from the
mounting hole of the terminal cover, and
remove the terminal body.
Pass a cable gland, washer, and cable gasket
over the cable, insert it via the wiring outlet of
the terminal cover, and connect lead wires to
the terminal body (screwdriver blade width of
about 3mm [0.12in.]).
Internal wiring connections
SOL.14 (SA) side
SOL.12 (SB) side
COM.
Ground
Terminal internal wiring connections
q
w
e
Terminal No.
Caution: Because the cable has no polarity, it can
be used for either COM or COM.

Handling Instructions and Precautions
Port isolator for
port 1(P)
PB-SP
Screw (M5 0.8)
9 or less
qHexagon nut (M5 0.8)
Nut thickness 5mm or less
wScrew (M5 0.8)
w
e
q
21 or more
tScrew (M5 0.8)
rHexagon nut (M5 0.8)
Nut thickness 4mm or less
DIN rail (steel)
Manifold
Gasket
PA-GS1
Mounting screw B
Mounting
screw A
Dimensions of M3 nut groove
(cannot be used for securing the manifold in place)
Plate
Female thread
block
Nameplate
Valve mounting and removal
For PA series
When removing the valve body from a sub-base or
manifold, loosen the valve mounting screws (2
places), and lift in the direction of the arrow (see
illustration below). To mount, follow the above
procedure in reverse. The recommended tightening
torque for the valve mounting screws is as shown
below.
For PB series
When removing the valve, use a hexagonal bar
wrench to loosen the valve mounting screws A and
B by 2 4 rotations. Move the mounting screw B
(which includes screws on both sides, and a tie rod)
in the direction of the arrow, move the valve until a
gap of about 1mm opens up on each side of the
valve, and then lift the valve in the direction of the
large arrow. Be careful when loosening the
mounting screws A and B, since the valve could fall
at that time, for example, in an upside down
manifold mounting. To assemble, follow the above
procedure in reverse. The recommended tightening
torque for the valve mounting screws is shown
below.
Recommended tightening torque for mounting screws:
176.5N cm {18.0kgf cm} [15.6in lbf]
Caution: Although the flow path for the PA and PB double
solenoid specifications (F6, A6, C6) is set to the
1(P) 2(B) at shipping from the factory,
conditions during shipping could cause the stem
to move and the position to shift. When applying
air to the system for the first time, confirm that it
is safely set by running a preliminary check on
switching, using electricity or manually. Beware
that air could suddenly blow out from the OUT
port.
Recommended tightening torque for mounting screws:
411.9N cm {42.0kgf cm} [36.5in lbf]
Installation of a port isolator at port 1(P)
between the stations of a split-type manifold
isolates the air path between the station where
the port isolator is installed and a station with a
smaller stn. No.
(PB series settings only)Port isolator
Port isolator for port 1(P) (Type: PB-SP)
Can supply 2 different types of pressure.
Caution: For later installing of other port isolators,
the manifold must be disassembled and
then reassembled. See the disassembly
diagram on p.669.
The nameplate is attached to the other side from
that of the female thread block. For attaching or
removing, flex it so that it fits the grooves on the
upper and lower side of the plate, as shown in the
illustration.
Since the nameplate can be attached to either the
top surface or front surface, make a careful
selection to conform with the valve piping
specifications that require combinations on the front
and top surface piping.
Nameplate
Installing the PA series F type manifold
(PAM F)
Manifold installation methods
1. Installation using a top-surface bolt
Use a bolt to tighten from the top of the manifold.
Care must be exercised when mounting to use a
sufficiently long screw, and mount it with
particular attention for the tightening torque. In
addition, use a washer if necessary to prevent
looseness.
2. Installation using a bottom-surface nut
qInsert a hexagon nut into the manifold’s T
groove.
wUse a screw to tighten from the bottom of the
mounting plate. Ensure that a suitable length
screw is used, and mount it with particular
attention for the tightening torque. In addition,
use a washer if necessary to prevent looseness.
3. Installation using a DIN rail
Insert into the grooves in the sequence of q and w
below.
Push in the direction of e, and align with the center of
the DIN rail.
rInsert a hexagon nut into the manifold’s T groove.
tUse a screw to tighten from the top of the manifold.
Always use a steel DIN rail. Do not use an aluminum
rail, as it would not be sufficiently strong, causing
deflection to loose products or dents in the rail that
could lead to defects.
Ensure that a suitable length screw is used, and mount
it with particular attention for the tightening torque. In
addition, use a double nut, etc., on the top surface of
the manifold if necessary for the prevention of
looseness.
Precaution for installation of PA series
manifolds (PAM F, PAM A, PAM B)
While the manifold has an M3 groove, be
aware that this groove is not for use in
manifold installation. Use this groove when
binding lead wires, as a space for securing
bands of binding wires.
Recommended tightening torque for mounting screws:
284.4N cm {29.0kgf cm} [25.2in lbf]