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3 Installation
NOTICE
Damage due to dirt, moisture and ozone/UV effects
• Storage outside or under the wrong climatic conditions can
cause corrosion and other damage to the valve. Conden-
sation due to temperature fluctuations can result in elec-
tronic malfunctions.
In the case of intermediate storage, observe the follow-
ing storage conditions:
• Recommended ambient temperature: +15 to +25 °C
(+60 to +78 °F), permissible temperature: –40 to
+80 °C (–40 to +176 °F), temperature fluctuation:
< 10 °C (18 °F)
• Relative humidity: < 65 % not condensing
• Ensure there are minimal vibration and shock where
valves are stored
Following transport or storage, wait until the valves have
reached ambient temperature before starting up.
• Dirt and moisture can enter the valve through openings
and cause damage. Seals can be damaged due to the
effects of ozone and UV.
During storage and transport, seal connectors with dust
protection caps and install the shipping plate on the
mounting surface.
Remove dust protection caps and shipping plate only
shortly before mounting the valves and keep packaging
materials for future storage and transport.
Seal with protection caps any valve connectors that are
not used in operation (without mating connector).
Compare model number and type with that specified on hy-
draulic schematic. The valve can be mounted in any position,
fixed or movable.
Mounting
surface:
(< 0.01 mm (0.00004 in) over 100 mm (3.94 in)) and finish
(R
< 0.8 µm). Care must be taken to ensure that contamina-
a
tion does not enter the hydraulic system, all work areas must
be clean of surface or air-borne contamination.
Mounting: Socket head screws (grade 10.9) according to
EN ISO 4762, torque diagonally alternating.
Pattern to
Series
ISO 4401
-630 (D630)
03-03-0-05
4 Operating Pressure
Maximum operating pressure p
5 Electrical Connection
Electrical safety: The insulation materials employed are de-
signed for use in the safety extra-low voltage range.
To comply with safety regulations requires isolation from the
mains according to EN 61558-1 and EN 61558-2-6 and limiting
all voltages according to EN 60204-1. We recommend using
SELV/PELV power supplies.
Rated signal: See nameplate.
Valve phasing: A positive signal (A–B) and (C–D) causes
valve opening PA.
Connector wiring: See wiring schematic in the catalog or the
installation drawing.
Connection: Signal lines shielded, shielding connected at
both ends and additionally connected to reference potential
(0 V) at the control side (to improve EMC).
Before applying electric signals the valve has to be pressur-
ized.
6 Hydraulic System Start Up
Pay attention to the pressure setting, the venting instructions
and the alarm messages!
Page 2/3
Check
for
flatness
Torque
Socket
[Nm]
head screw
Pcs.
(lbf in)
M5 x 50
4
6.8 (40)
: See nameplate.
P
7 Null Adjustment
The null adjustment of the valve is achieved by turning the ec-
centric pin at the tank side of the valve body. Loosen the nut
lightly. Turning the pin clockwise will increase valve opening
PA. After adjustment retighten the nut.
8 Maintenance
Except for a regular visual inspection for exterior leakage and
filter change, no maintenance work on the valves is required.
Changing the filter: The installed filter protects internal ori-
fices and nozzles against coarse particle contamination. The
valve response time will increase as contamination increases.
The filters located below the filter cover at the side may be re-
placed by the customer.
NOTICE
Changing the filter
Cleaning serves no purpose.
NOTICE
Before beginning work, clean the outside of the valve
around the filter cover!
• Remove hexagon socket screws (6) with a wrench and
remove the filter cover (5). Pull out the plugs (4) using an
M4 screw. Remove the filter disk (2), which is now acces-
sible, with tweezers or a fine screwdriver.
1
2
4
3
5
Fig.: Construction
• Check O-rings (1) and (3) and replace if necessary.
• Install new filter disk. To do this, first insert the O-Ring
(1), then the filter disk (2) so that the side of the filter disk
with the indentation faces the outside. Insert O-ring (3) in
the plugs (4) with some clean grease and mount.
• Torque screws to:
Type
Series
Servo valve
-630 (D630)
• After start-up, check valve for external leakage.
Replacing O rings: The mounting surface O rings may be re-
placed by the customer. Pay attention to cleanliness of the
valve and of the surroundings.
Transportation/storage: Before transportation, seal the base
of the valve using a clean shipping plate or adhesive tape.
Seal the connector using a dust protection cap. Pack the valve
carefully so that it is not damaged during transportation or stor-
age.
Inspection: Following a period of storage or no operation for
more than 5 years, we recommend that the valve is inspected
by an authorized service center, in order to prevent possible
damage.
Repairs: Repairs may only be carried out by us or by our au-
thorized service centers.
Mounting and Installation Notes -630 (D630) (B97072-630-001; Version G, 02/15)
6
Torque
Screw
[Nm] (lbf in)
M4 x 10–8.8
3.40 (30.1)
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