Moog DS2100 - Manual (Page 22)

DS2100 User's Manual (Preliminary)
SECTION 3: WIRING AND INSTALLATION
PAGE 3-16
3.2.1 CE Items for Mechanical Installation
Additional electromagnetic compatibility (EMC) measures must be installed
on equipment associated with the DS2100 Servo-drive. The following
measures must be implemented:
· All external Regen (Regenerative circuit) resistors used with the DS2100
must be installed in enclosures which provide a degree of ingress
protection against liquids and objects of at least IP22 and which are
accessible to technically qualified service or maintenance persons only.
Protection against electric shock must be maintained when installing
these resistors.
· Use shielded cable to connect the external regen resistor (if installed) to
the DS2100 power supply. The length of this cable should be as short as
possible. The shields of these cables should be earthed to Chassis Earth
using the optional EMC Bracket kit or the panel earth bar. Alternatively,
if the cable is required to pass through an enclosure panel earthed to
Chassis Earth, the shield may be earthed to the panel by use of a 360
degree metal cable gland.
· Cables supplying external d.c. supply voltages to the DS2100 Series
Servo-drives (for example, the 24 Vd.c. supply) must be as short as
possible. The supply wires should be twisted together or alternatively
shielded cable should be used.
· Cables connecting the D.C. Bus from the DS2100 Power Supply to other
DS2100 Servo-drives must be as short as possible. The supply cables
should be shielded.
· Motor power cables must be shielded with the cable shield securely
connected to Chassis Earth at both ends of the cable. At the DS2100
Servo-drive end of the cable, the shield should be earthed using the EMC
Bracket.
· Motor feedback & signal cables must be shielded with the cable shield
securely connected to Chassis Earth at both ends of the cable.
· Signal cables must be shielded with the cable shield securely connected
to make a good HF earth bond to Chassis Earth at both ends of the cable.
Further details for the correct installation and shielding of cables and
conductors are given in Section 2.
Required for
CE-Compliance
CAUTION - Enclosure or cabinet temperature control is critical for
performance, reliability and life of electrical components. Maintaining a
uniform temperature (check for hot spots) within the specified values for the
equipment will prevent premature failure due to temperature stress.