3.4 Installation and Wiring Conditions on CE Marking
25
3.4 Installation and Wiring Conditions on CE Marking
To adapt a combination of a SJME servomotor and a SJDE SERVOPACK to EMC Directives (EN55011,
group 1, class A and EN61000-6-2), the following conditions must be satisfied. After installing the SER-
VOPACK, do a test run to make sure that the machine operates correctly.
The actual EMC level may differ depending on the actual system's configuration, wiring, and
other conditions.
2. The ground protection circuit is designed for ground fault inside the motor windings while the
motor is running. Therefore, it may not protect the system under the following conditions.
• A low-resistance ground fault occurs between the main circuit cable and connector for
the servomotor.
• The power supply is turned ON during a ground fault.
To configure a safer system, install an earth leakage breaker for protection against overloads and
short-circuiting, or install an earth leakage breaker combined with a wiring circuit breaker for
ground protection.
* Prepare a 24 VDC power supply for sequence separately from the 24 VDC power supply for brake.
Symbol Cable Name Specifications
c
I/O Signals cable Shield cable
d
Servomotor Main Circuit cable Shield cable
e
Encoder cable Shield cable
f
AC Line cable Shield cable
NOTE
Power Supply
Single-phase
200 VAC
U, V, W
L1, L2
CN2
CN1
Ground Plate
PE
Encoder
Servo-
motor
Brake
Clamp
Noise
filter
Ferrite
core
Clamp
Surge
protector
Brake power
supply
Host controller
SERVOPACK
Ferrite
core
Ferrite
core
Ferrite
core
Ferrite
core
+, −
Regenerative
unit
Cable joint
Cable joint
TOEP_C710806_01A_0_0.book Seite 25 Montag, 2. Juli 2007 4:24 16
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