Moog D668 Séries Manuel De L'utilisateur page 3

2 Hydraulic fluid
Mineral oil based hydraulic fluid according to DIN 51524, parts
1 to 3, (ISO 11158).
Other hydraulic fluids on request.
Viscosity: 5 to 200 mm²/s (cSt), recommended 15 to
45 mm²/s (cSt).
Temperature range fluid: T
Class of cleanliness: According to ISO 4406:1999 at least
class 18/15/12; for longer life, class 17/14/11 recommended.
The cleanliness of the hydraulic fluid greatly influences the
functional safety and the wear and tear. In order to avoid mal-
functions and increased wear and tear, we recommend filtrat-
ing the hydraulic fluid accordingly.
Flushing instruction: Use of flushing plates or flushing valves
according to the machine manufacturer's instructions.
3 Cooling liquid for servo motor
Temperature range of cooling liquid: +25 to +40 °C (+77 to
+104 °F)
Cooling liquid flow rate: 3 l/min (0.8 gpm)
Max. coolant pressure: 5 bar (72.5 psi)
For chemical requirements regarding coolant, see user manual
Servomotor-Driven Proportional Valve (SDPV) CDS37389.
4 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
(+59 to +77 °F), permissible temperature: -20 to
+40 °C (-4 to +104 °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 must be mounted with servomotor
in direction of acceleration and vertical position of servomotor-
rotor.
Mounting surface:
(< 0.01 mm (0.0004 in) over 100 mm (3.94 in)) and finish (R
< 0.8 µm (30 µin)). Care must be taken to ensure that
contamination 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
D668 07-07-0-05
Page 2/3
-20 to +60 °C (-4 to +140°F).
F
Check for flatness
Torque
Socket [Nm]
head screw Pcs.
(lbf ft)
M10 x 60 4 54 (40)
M6 x 55 2 11 (8)
5 Operating Pressure
Maximum operating pressure p
Max. pressure Y-port: ≤ 10 bar (145 psi)
Max. pressure X-port (with ext. lubrication): ≤ 10 bar
(145 psi)
6 Electrical Connection
Electrical safety: Before starting work, observe the safety
rules according to DIN VDE 0105-100:
1. Disconnect the mains
2. Secure against reconnection
3. Verify that the system is dead
4. Carry out earthing and short circuiting
5. Provide protection from adjacent live parts
The protective conductor is connected to the motor housing.
The equipotential bonding and protective conducting system
for a machine in which the valves should be used must be
constructed according to EN 60204-1 and IEC/EN 61800-5-1.
Observe the operating instruction MSD Servo Drive CA65642
and user manual SDPV CDS37389.
Rated signal: See nameplate.
Valve phasing: A positive signal at the MSD Servo Drive
causes valve opening P A.
Connector wiring: See wiring schematic in user manual SDPV
CDS37389.
Connection: Motor and signal cables shielded, shielding
connected at both ends, connect the protective conductor.
Observe the operating instruction for MSD Servo Drive
CA65642 and user manual for SDPV CDS37389.
7 Hydraulic System Start Up
Pay attention to the pressure setting, the venting instructions
and the alarm messages!
8 Null Adjustment
NOTICE
Risk of damage
The electric and hydraulic zero position of the valve is stored in
the corresponding MSD Servo Drive and not in the valve. A
valve with a false zero adjustment may cause damages on the
machine. The correct zero adjustment for each individual valve
is determined on the test stand at Moog and stored in the
device commissioning file.
The correct zero adjustment (device commissioning file)
must be uploaded to the corresponding MSD Servo Drive
before starting up the valve.
If a valve is exchanged, e.g. due to repair, the zero
adjustment must be corrected by loading up the correct
device commissioning file to the MSD Servo Drive.
The device commissioning file (*comfarc) can be
downloaded for each individual valve on the Moog
software download portal at
https://www.moogsoftwaredownload.com/.
9 Service
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.
a
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 Moog or by our
authorized service centers.
Mounting and Installation Notes D668 (B97072-668-001; Version A, 06/21)
: See nameplate.
P