Publicité
SYSTEM PRESSURISATION AND
DEPRESSURISATION CURVES
651 - 652 - 653
651 - 652 - 653
P1
P2
P2:
80% P1 (651)
1
60..70 % P1 (652/653)
2
t1
t2
P1
90%
1
10%
t1
t2
P1
B
3
B
2
B
1
A
▼
▼
DESCRIPTION
This assembly provides the two following main functions:
- Pneumatic system venting.
- Gradual pressurization after an outage leading to
venting of the system.
SHUT-OFF VALVE
The 3/2 NC shut-off valve, controlled by a solenoid valve
of the CNOMO pad-mounting type, vents the system
by de-energising the solenoid valve.
SOFT-START DEVICE
Upon pressurization, when the soft-start device is
in its initial position, an adjustable air flow ensures
gradual filling of the downstream circuit, so that the
actuators move slowly. The transition to the full flow
position depends on which of the following soft-start
devices is chosen:
- AUTOMATIC SOFT-START DEVICE
Automatic switch-over to the full flow position as soon
as the downstream pressure reaches 60 to 70% of the
supplied pressure (upstream pressure). Operating cycles
The soft-start device remains in the full flow position as
take place at normal speed thereafter.
long as the upstream pressure is maintained.
t3
The device returns into its initial position when the air
t (s)
supply is cut off.
- SOLENOID/AIR CONTROLLED SOFT-START DEVICE
This device, which complies with technical CNOMO
specifications (E05.03.135.N), can be used to gradually
feed air into the system whenever restarting after a
shutdown or a pressure cut-off. The system is slowly
returned into the end-of-cycle position. As soon as this
condition is reached, the solenoid pilot valve is energised
in accordance with the automatic control specified by
the user. The soft-start device then switches to the full
flow position allowing the subsequent operating cycles to
be kept energised under normal operating conditions.
take place at normal speed. The solenoid pilot valve must
Any de-energization of the solenoid pilot valve sets
the soft-start device into the metered flow position.Any
de-energization of the solenoid valve sets the soft-start
device to the low flow position.
Note: In both soft-start device versions, the filling rate,
i.e. the pressure build-up in the downstream circuit, is
adjusted by means of a fine-thread screw which can be
locked to prevent un-authorised adjustment of regulated
pressure.
Manual override on solenoid valves: The assem-
bly can only be piloted with solenoid valves without
manual override or with a non-locking manual override
(impulse-type).
MOUNTING AND OPERATING INSTRUCTIONS
- The shut-off and soft-start valve assembly must be
mounted as described above before the lubricator.
Make sure there is no oil.
- Make sure that port 3 cannot be obstructed inadvert-
- Do not obstruct exhaust port 3 on the shut-off valve.
ently.
- In case of operation in dusty environments, mount an
exhaust silencer on port 3 (available as accessory).
- Make sure to meet the operating specifications (pres-
sure, temperature, voltage, current) of the assembly as
described.
- The solenoid valves must not be equipped with locking
manual override.
- The shut-off valve must only be de-energised in
case of need when the system is generally shut down
or in case of power supply failure. This product is
not a limit stop switch.
- For systems which are operated only infrequently (e.g.
rect functioning of the shut-off and soft start valve
in case of continuously operated machines), the cor-
assembly must be regularly checked - at least once
per month – by turning the power on and off several
times (full exhaust and gradual pressurization of the
system).
- Should a failure occur, please return the product to your
distributor with a description of the operating conditions
and the problem.
2
t3
Rep. A
DESCRIPTION
This assembly provides the two following main functions:
- Pneumatic system venting.
- Gradual pressurization after an outage leading to
venting of the system.
SHUT-OFF VALVE
The 3/2 NC shut-off valve, controlled by a solenoid valve
of the CNOMO pad-mounting type, vents the system
by de-energising the solenoid valve.
SOFT-START DEVICE
Upon pressurization, when the soft-start device is
in its initial position, an adjustable air flow ensures
gradual filling of the downstream circuit, so that the
actuators move slowly. The transition to the full flow
position depends on which of the following soft-start
devices is chosen:
- AUTOMATIC SOFT-START DEVICE
Automatic switch-over to the full flow position as soon
as the downstream pressure reaches 60 to 70% of the
supplied pressure (upstream pressure). Operating cycles
take place at normal speed thereafter.
The soft-start device remains in the full flow position as
long as the upstream pressure is maintained.
The device returns into its initial position when the air
supply is cut off.
- SOLENOID/AIR CONTROLLED SOFT-START DEVICE
specifications (E05.03.135.N), can be used to gradually
This device, which complies with technical CNOMO
feed air into the system whenever restarting after a
shutdown or a pressure cut-off. The system is slowly
returned into the end-of-cycle position. As soon as this
condition is reached, the solenoid pilot valve is energised
in accordance with the automatic control specified by
the user. The soft-start device then switches to the full
flow position allowing the subsequent operating cycles to
take place at normal speed. The solenoid pilot valve must
be kept energised under normal operating conditions.
Any de-energization of the solenoid pilot valve sets
the soft-start device into the metered flow position.Any
de-energization of the solenoid valve sets the soft-start
device to the low flow position.
Note: In both soft-start device versions, the filling rate,
adjusted by means of a fine-thread screw which can be
i.e. the pressure build-up in the downstream circuit, is
locked to prevent un-authorised adjustment of regulated
pressure.
Manual override on solenoid valves: The assem-
bly can only be piloted with solenoid valves without
manual override or with a non-locking manual override
(impulse-type).
MOUNTING AND OPERATING INSTRUCTIONS
- The shut-off and soft-start valve assembly must be
mounted as described above before the lubricator.
Make sure there is no oil.
- Do not obstruct exhaust port 3 on the shut-off valve.
- Make sure that port 3 cannot be obstructed inadvert-
ently.
- In case of operation in dusty environments, mount an
exhaust silencer on port 3 (available as accessory).
- Make sure to meet the operating specifications (pres-
sure, temperature, voltage, current) of the assembly as
- The solenoid valves must not be equipped with locking
described.
manual override.
- The shut-off valve must only be de-energised in
case of need when the system is generally shut down
or in case of power supply failure. This product is
not a limit stop switch.
- For systems which are operated only infrequently (e.g.
in case of continuously operated machines), the cor-
rect functioning of the shut-off and soft start valve
assembly must be regularly checked - at least once
per month – by turning the power on and off several
times (full exhaust and gradual pressurization of the
system).
- Should a failure occur, please return the product to your
and the problem.
distributor with a description of the operating conditions
t
18
This assembly provides the two following main functions:
- Pneumatic system venting.
- Gradual pressurization after an outage leading to
venting of the system.
SHUT-OFF VALVE
The 3/2 NC shut-off valve, controlled by a solenoid valve
of the CNOMO pad-mounting type, vents the system
by de-energising the solenoid valve.
SOFT-START DEVICE
Upon pressurization, when the soft-start device is
in its initial position, an adjustable air fl ow ensures
gradual fi lling of the downstream circuit, so that the
actuators move slowly. The transition to the full fl ow
position depends on which of the following soft-start
devices is chosen:
- AUTOMATIC SOFT-START DEVICE
Automatic switch-over to the full fl ow position as soon as
the downstream pressure reaches 60 to 80% (depending
3/2 SLOW-START
QUICK EXHAUST VALVES
on the series) of the supplied pressure (upstream
651 - 652
ADJUSTMENT OF DOWNSTREAM
PRESSURE BUILD-UP TIME (See page 15)
In both soft-start device versions, the filling rate, i.e. the
pressure build-up in the downstream circuit, is adjusted by
means of a fine-thread screw. Components are supplied
pressure). Operating cycles take place at normal speed
with 7 l/min screw adjustment.
Adjustment is as follows:
- Unscrew the screw by 0.5 to 7 turns to obtain the desired
filling speed (Rep. 1).
- Perform a test.
- Regulate the setting by adjusting the screw. Before
retesting, vent the installation with the shut-off valve.
thereafter.
- When the correct setting is obtained, you can insert the
pin to lock the screw and prevent unauthorised adjust-
ment of regulated pressure (Rep. 2). It is possible to
remove pin flat screw driver or needle-nose pliers.
Note: A solenoid pilot controlled soft-start device, the adjust-
ment must be made with solenoid pilot installed. It
is not necessary vent or remove the solenoid pilot
to secure the locking pin.
The soft-start device remains in the full fl ow position as
SYSTEM PRESSURISATION AND
DEPRESSURISATION CURVES (See page 16)
• WITH AUTOMATIC SOFT-START DEVICE
curves (1) and (2).
The adjustment range for pressurization lies between
The transition to full flow takes place automatically as
soon as the downstream pressure reaches 80% (651)/60%
long as the upstream pressure is maintained.
to 70% (652) of the upstream pressure.
Filling and venting times (in seconds):
651 652
T1 (
with screw loosened by 6 (651)/7 (652) turns
8
3.2
T2 (
with screw loosened by 1 turn
)
112 23
T3 (
venting time
)
5
1
The device returns into its initial position when the air
These times correspond to a supply pressure (Pa) of
6.3 bar, a transition pressure (Pb) of 80% (651)/60%
EN
to 70% (652) Pa (not adjustable) and a downstream
EN
capacity of 10 liters.
• WITH A SOLENOID/AIR CONTROLLED SOFT-START
DEVICE
Unlike the automatic soft-start version, this version
supply is cut off.
only authorises full flow on receiving a permanent
electrical signal
(see note below).
The adjustment range for pressurization lies between
curves (1) and (2).
Filling and venting times (in seconds):
651 652
- SOLENOID/AIR CONTROLLED SOFT-START DEVICE
T1 (
with screw loosened by 6 (651)/7 (652) turns
8
3.2
T2 (
with screw loosened by 1 turn
)
112 23
T3 (
)
5
1
venting time
The full flow position is determined by the pilot valve
which must be energized after checking that all the
end-of-cycle sensors are activated. It also enables fast
triggering of pressurization if the shutdown occurs at
This device, which complies with technical CNOMO
the end of the cycle (see curve A) or close to the end
of the cycle (see curves B
1
, B
, B
2
3
, etc.)
Minimum pressurization time (curve A): 1s with an up-
stream pressure of 6.3 bar and a capacity of 10 liters.
specifi cations (E05.03.135.N), can be used to gradually
19..35
feed air into the system whenever restarting after a
508608 001
shutdown or a pressure cut-off. The system is slowly
returned into the end-of-cycle position. As soon as this
!
condition is reached, the solenoid pilot valve is energised
in accordance with the automatic control specifi ed by
the user. The soft-start device then switches to the full
fl ow position allowing the subsequent operating cycles to
take place at normal speed. The solenoid pilot valve must
be kept energised under normal operating conditions.
Any de-energization of the solenoid pilot valve sets
the soft-start device into the metered fl ow position.Any
de-energization of the solenoid valve sets the soft-start
device to the low fl ow position.
Note: In both soft-start device versions, the fi lling rate,
i.e. the pressure build-up in the downstream circuit, is
adjusted by means of a fi ne-thread screw which can be
locked to prevent un-authorised adjustment of regulated
pressure.
Manual override on solenoid valves: The assem-
bly can only be piloted with solenoid valves without
manual override or with a non-locking manual override
(impulse-type).
MOUNTING AND OPERATING INSTRUCTIONS
- The shut-off and soft-start valve assembly must be
mounted as described above before the lubricator.
t (s)
Make sure there is no oil.
- Do not obstruct exhaust port 3 on the shut-off valve.
- Make sure that port 3 cannot be obstructed inadvert-
ently.
- In case of operation in dusty environments, mount an
exhaust silencer on port 3 (available as accessory).
- Make sure to meet the operating specifi cations (pres-
sure, temperature, voltage, current) of the assembly as
3/2 SLOW-START
QUICK EXHAUST VALVES
651 - 652
ADJUSTMENT OF DOWNSTREAM
described.
PRESSURE BUILD-UP TIME (See page 15)
In both soft-start device versions, the filling rate, i.e. the
pressure build-up in the downstream circuit, is adjusted by
with 7 l/min screw adjustment.
means of a fine-thread screw. Components are supplied
Adjustment is as follows:
- Unscrew the screw by 0.5 to 7 turns to obtain the desired
filling speed (Rep. 1).
- Perform a test.
- The solenoid valves must not be equipped with locking
- Regulate the setting by adjusting the screw. Before
retesting, vent the installation with the shut-off valve.
- When the correct setting is obtained, you can insert the
pin to lock the screw and prevent unauthorised adjust-
ment of regulated pressure (Rep. 2). It is possible to
remove pin flat screw driver or needle-nose pliers.
Note: A solenoid pilot controlled soft-start device, the adjust-
manual override.
ment must be made with solenoid pilot installed. It
is not necessary vent or remove the solenoid pilot
to secure the locking pin.
SYSTEM PRESSURISATION AND
DEPRESSURISATION CURVES (See page 16)
• WITH AUTOMATIC SOFT-START DEVICE
- The shut-off valve must only be de-energised in
The adjustment range for pressurization lies between
curves (1) and (2).
The transition to full flow takes place automatically as
soon as the downstream pressure reaches 80% (651)/60%
to 70% (652) of the upstream pressure.
Filling and venting times (in seconds):
651 652
T1 (
with screw loosened by 6 (651)/7 (652) turns
8
3.2
case of need when the system is generally shut down
T2 (
)
with screw loosened by 1 turn
112 23
T3 (
venting time
)
5
1
These times correspond to a supply pressure (Pa) of
6.3 bar, a transition pressure (Pb) of 80% (651)/60%
EN
to 70% (652) Pa (not adjustable) and a downstream
EN
capacity of 10 liters.
or in case of power supply failure. This product is
• WITH A SOLENOID/AIR CONTROLLED SOFT-START
DEVICE
only authorises full flow on receiving a permanent
Unlike the automatic soft-start version, this version
electrical signal
(see note below).
The adjustment range for pressurization lies between
not a limit stop switch.
curves (1) and (2).
Filling and venting times (in seconds):
651 652
T1 (
with screw loosened by 6 (651)/7 (652) turns
8
3.2
T2 (
with screw loosened by 1 turn
)
112 23
T3 (
venting time
)
5
1
The full flow position is determined by the pilot valve
- For systems which are operated only infrequently (e.g.
which must be energized after checking that all the
end-of-cycle sensors are activated. It also enables fast
triggering of pressurization if the shutdown occurs at
the end of the cycle (see curve A) or close to the end
of the cycle (see curves B
, B
, B
, etc.)
Minimum pressurization time (curve A): 1s with an up-
1
2
3
stream pressure of 6.3 bar and a capacity of 10 liters.
in case of continuously operated machines), the cor-
19..35
rect functioning of the shut-off and soft start valve
508608 001
assembly must be regularly checked - at least once
per month – by turning the power on and off several
times (full exhaust and gradual pressurization of the
!
system).
508608-001
3/2 SLOW-START
QUICK EXHAUST VALVES
651 - 652 - 653
▼
▼
- Should a failure occur, please return the product to your
DESCRIPTION
distributor with a description of the operating conditions
and the problem.
PRESSURE BUILD-UP TIME (See page 17)
In both soft-start device versions, the fi lling rate, i.e. the
pressure build-up in the downstream circuit, is adjusted by
means of a fi ne-thread screw. Components are supplied
with 7 l/min screw adjustment.
Adjustment is as follows:
- Unscrew the screw by 0.5 to 7 turns (651-652)/8 turns
(653) to obtain the desired fi lling speed (Rep. 1).
- Perform a test.
- Regulate the setting by adjusting the screw. Before
retesting, vent the installation with the shut-off valve.
- When the correct setting is obtained, you can insert the
pin to lock the screw and prevent unauthorised adjust-
ment of regulated pressure (Rep. 2). It is possible to
remove pin fl at screw driver or needle-nose pliers.
Note: A solenoid pilot controlled soft-start device, the adjust-
ment must be made with solenoid pilot installed. It
is not necessary vent or remove the solenoid pilot
to secure the locking pin.
DEPRESSURISATION CURVES (See page 18)
• WITH AUTOMATIC SOFT-START DEVICE
The adjustment range for pressurization lies between
curves (1) and (2).
The transition to full fl ow takes place automatically as
soon as the downstream pressure reaches 80% (651)/60%
to 70% (652/653) of the upstream pressure.
Filling and venting times (in seconds):
t1 (
with screw loosened by 6 (651)/7 (652)/ 8 (653) turns
t2 (
with screw loosened by 1 turn )
t3 (
venting time )
EN
These times correspond to a supply pressure (P1) of
6.3 bar, a transition pressure (P2) of 80% (651)/60% to
70% (652/653) P1 (not adjustable) and a downstream
capacity of 10 liters.
• WITH A SOLENOID/AIR CONTROLLED SOFT-START
DEVICE
Unlike the automatic soft-start version, this version
only authorises full fl ow on receiving a permanent
electrical signal
(see note below).
The adjustment range for pressurization lies between
curves (1) and (2).
Filling and venting times (in seconds):
with screw loosened by 6 (651)/7 (652)/ 8 (653) turns
t1 (
with screw loosened by 1 turn )
t2 (
t3 (
venting time )
The full fl ow position is determined by the pilot valve
which must be energized after checking that all the
end-of-cycle sensors are activated. It also enables fast
triggering of pressurization if the shutdown occurs at
the end of the cycle (see curve A) or close to the end
of the cycle (see curves B
Minimum pressurization time (curve A): 1s with an up-
stream pressure of 6.3 bar and a capacity of 10 liters.
19
ADJUSTMENT OF DOWNSTREAM
SYSTEM PRESSURISATION AND
651 652 653
8 3.2 2.8
112 23 18.5
5 1
0.5
EN
651 652 653
8 3.2 2.8
112 23 18.5
5 1
0.5
, B
, B
, etc.)
1
2
3
508608-001
Publicité
