Moog D633/4 Serie Manuel De L'utilisateur page 3

3 Installation
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: Check for flatness (< 0.01 mm over
100 mm) and finish (R < 0.8 µm). Care must be taken to en-
a
sure that contamination does not enter the hydraulic system,
all work areas must be clean of surface or air-borne contami-
nation.
Mounting: Socket head screws (grade 10.9) according to
DIN EN ISO 4762, torque diagonally alternating.
Pattern to
Series ISO 4401
D633 03-03-0-05
D634-R 05-05-0-05
D634-P 05-05-0-05
4 Operating Pressure
Maximum operating pressure p
5 Electrical Connection
Electrical safety: The protective conductor connection is con-
nected to the electronics housing or valve body. The insulation
materials employed are designed 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.
External fuse per valve: 1.6 A time lag (for D633) and 2.5 A
time lag (for D634)
Valve phasing: A positive signal (D–E) for 6+PE connector,
(4–5) for 11+PE connector, (3–1) for equipment socket, (A–D)
for 4 pin connector or (1–2) for M12 connector. causes valve
opening PA.
Connector wiring: See wiring schematic tag attached to elec-
tronics housing, or refer to the catalog or the installation draw-
ing.
Connection: Signal lines shielded, shielding connected at
both ends and additionally connected to reference potential
(0 V) at the control side (to improve EMC). Connect the protec-
tive conductor.
Observe technical note TN 353.
6 Hydraulic System Start Up
Pay attention to the pressure setting, the venting instructions
and the alarm messages!
7 Null Adjustment
Remove the locking screw with sealing ring from the cover of
the electronics housing to access the null adjustment potenti-
ometer. Turning the potentiometer shaft results in a spool posi-
tion change. Turning clockwise will increase valve opening
PA. The output signal for actual spool position will also
change. After adjustment refit the sealing ring and the locking
screw.
Null adjustment is not possible for valves without integrated
electronics, i.e., for series D633-A valves.
Page 2/2
Socket Torque
head screw Pcs. [Nm]
M5 x 55 4
M6 x 60 4
M6 x 40 4
: See nameplate.
P
8 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.
Transportation: Before transporting a valve the valve ports
have to be sealed with a clean shipping plate or adhesive tape.
Package the valve carefully to prevent damage during trans-
portation.
Repairs: Repairs may only be carried out by us or by our au-
thorized service centers.
9 Disposal
It is essential to comply with the relevant national waste dis-
posal regulations and environmental protection provisions
6.8
when disposing of valves, spare parts or accessories, packag-
11
ing that is no longer needed, hydraulic fluid or auxiliary materi-
11
als and substances used for cleaning!
Mounting and Installation Notes D633/4 (B97072-633-001; Version 5.0, 01/11)