moog
MSD Servo Drive DC-AC Operation Manual
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Electrical
installation
19
Id.-No.: CA97554-001 Date: 06/2012
3 Electrical installation
3.1 Notes for installation
ATTENTION!
•
Qualified personnel
Installation must only be carried out by qualified electricians who have un-
dergone instruction in the necessary accident prevention measures.
•
During installation
please be sure to avoid ...
− screws, cable residues or other foreign bodies dropping into the device;
− penetration of damp into the device
DANGER FROM ELECTRICAL TENSION!
•
Danger of life!
− Never wire or disconnect electrical connections while they are live!
Disconnect the device from the mains supply (230/400/460/480 V AC or
565/650/678/770 V DC) before working on it. Dangerously high voltages
of ≥ 50 V may still be present 10 minutes after the power is cut (capacitor
charge). Work on the device must only be carried out when the DC link
voltage has dropped below a residual voltage of 50V (measured on
Size 1 - Size 4 at terminals X11 and X12/L- / L+, on Size 5 and Size 6A on
terminals X11 and X12/ZK- / ZK+).
− Even if the device does not emit any visual or audible signals or show
other indications, dangerous voltage may be connected to the device
(such as with mains voltage to terminal X11 switched on) and no control
supply (+24 V DC on X9, X10)!
NOTE:
For installation of the servo drive within a MSD Servo Drive multi-axis
system, be sure also to refer to the Operation Manual for the
MSD Power Supply Unit or the supplying MSD Servo Drive AC-AC.
!
•
Compliance with EMC product standard
Commissioning (i.e. starting intended operation) is only permitted when strictly
complying with EMC product standard EN 61800-3:2004. The installer/operator of
a machine and/or item of plant must provide proof of compliance with the protec-
tion targets stipulated in the standard.
•
Cable type
− Use shielded mains, motor and signal cables with double copper braiding, pro-
viding 60 to 70 % coverage.
− Always route the motor cable without interruptions and by the shortest route
out of the switch cabinet. If a motor contactor or motor choke is used, the com-
ponent should be directly mounted to the DC-AC servo drive and the shield of
the motor cable should not be stripped too soon.
− If very large cable cross-sections have to be installed, shielded single wires may
also be used instead of shielded cables.
!
ATTENTION!
Use the supplied ready made-up cables for the electrical con-
nections between the devices. If extending the DC link is unavoidable, be
sure to comply with the rules set out in section B.5 (page 79). If cables not
conforming to the stipulated rules are used, Moog GmbH can provide no
guarantee of stable and safe operation.
•
Cable laying
− Lay mains, motor and signal cables isolated from each other. Maintain a mini-
mum clearance of 0.2 metres wherever possible. Use separators as necessary.
− Always route the motor cable without interruptions and by the shortest route
out of the switch cabinet. If a motor contactor or motor choke is used, the
component should be directly mounted to the servo drive and the shield of the
motor cable should not be stripped too soon.
− As far as possible route signal cables into the switch cabinet from one side only.
− Cables of the same circuit must be twisted.
− Avoid unnecessary cable lengths and loops.
•
Shielding
Do not strip the cable shields too soon, and lay them across wide areas both on
the component and on the backing plate and PE rail (main ground) of the backing
plate.
