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Control valve
The valve block module complete (1) contains all
the control functions and signal originations for
external control.
The controls and locations are identified below
and detailed in the drilling operation.
1
2
3
4
5
6
7
8
Figure 3
1
Valve block module complete
2
Main air inlet port, tapped in BSP or NPT
3
'P' input port, tapped M5. Signal point for peck
feed or Dwell control kit circuit
4
Manual Retract Button (Red)
5
'l' Remote Start lnput port, tapped M5.
Receives external signal to start the tool cycle
6
Manual start button (Green)
7
'R' retract output port, tapped 1/8in BSP.
supply for air return
8*
Position for 'S2' solenoid valve for electric
emergency retract
9*
Position for 'SW2' proximity switch, detects
a signal at the end of a cycle for interface kit
connection (i.e. it is high at depth)
10
Stroke control valve
11
Feed rate regulating screw
12* Position for 'S1' solenoid valve for electric
start
13
Retract rate regulating screw
14
Advance rate regulating screw
15
'O' port, tapped 1/8in BSP receives signal to
return the feed to start position for peck feed
or Dwell control
16* Position for 'SW1' proximity switch, detects a
signal at the beginning of a cycle for interface
kit connection. (i.e. is High in datum position).
17
'M' port, is tapped M5. Used for sequence
control. The signal is produced when the tool
is at rest.
(*)
Available in KIT form. See Desoutter Catalogue
for details"
03/2015
The 'M' port is intended for the operation
of pilot valves. lt must not be used as a
source of air supply for other uses.
Simple Control Valve
17
16
15
14
13
12
2
11
10
9
Figure 4
1a
Position for 'SW1' proximity switch, using
actuating pin
1b
Position for 'SW1' proximity switch, using
sleeve on extension tube
2
Position for 'SW2' proximity switch, detects a
signal when the tool has reached depth
3
Retract Air port, tapped 1/8 in. BSP
4
Advance Air port, tapped 1/8 in. BSP
This control valve block module is used when
the tool is to be controlled remotely.
Both (1a) and (1b) detects a signal when the tool
is at the datum position.
External circuitry will be required to
control the speed of advance and retract
feeds.
When using simple control block replace
screw (35) with extended head screw
(383983).
Accessories
Mounting Clamps
A range of clamps bases and columns are
available.
Full details obtained from Desoutter.
Hydraulic Check Unit (HCU)
The tool will function satisfactorily, when drilling
a blind hole at the set feed rate.
Should it be required to break through the
material and possibly through into another hole,
feed acceleration will occur with possible drill
breakage.
441483
Issue no : 10
Series : C
1a
1b
3
4
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