Moog G392-004, Руководство по эксплуатации

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MSD Servo Drive AC-AC Operation Manual
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24
Id. no.: CA65642-001 Date: 03/2012
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3.5 Connection PE conductor
Step Action
PE mains connection
acc. DIN EN 61800-5-1
1.
Ground each of the servo drives!
Connect terminal in star
configuration
and
amply
dimensioned with the PE bar
(main ground) in the control
cabinet.
The following applies for the PE connection
(because leakage current > 3.5 mA):
• Mains connection <10 mm² copper: use
PE-conductor cross-section minimum 10 mm²
copper or two cables with the cross-section of
the mains cables.
• Mains connection ≥10 mm² copper: use a
PE-conductor cross section complying with the
cross-section of the mains cables.
Apart from this, you must also consider
local and country specific regulations and
conditions.
2.
Also connect the PE-conductor
terminals of all other components,
such as mains choke, filter, etc.
in a
star configuration
and
amply dimensioned with the
PE bar (main ground) in the control
cabinet.
W 1 V 2 W 2 U 2 U 1 V 1 W 1 V 2 W 2 U 2 U 1 V 1 W 1 V 2 W 2 U 2 U 1 V 1
PE
PE
PE PE
Fig. 3.8 Star configuration layout of PE conductor
3.6 Electrical isolation concept
The control electronics with its logics (µP), the encoder terminals and the inputs and
outputs is galvanically isolated from the power section (mains supply/DC link). All control
terminals are designed as safety extra-low voltage (SELV/PELV) circuit and must only be
operated with SELV or PELV voltages complying with the corresponding specification.
This provides reliable protection against electric shock on the control side.
You therefore need a separate control supply, compliant with SELV/PELV requirements.
The opposite overview shows the potential supplies for the individual terminals in detail.
This concept additionally enhances the operational safety and reliability of the servo
drive.
ATTENTION! Terminal X5 (motor PTC) represents a special feature with
respect to insulation and isolation. In this respect follow the notes in section
3.14 "Motor connection" from page 36.
SELV = Safety Extra Low Voltage
PELV = Protective Extra Low Voltage
!