Moog G393-004, Руководство по эксплуатации

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MSD Multi-Axis System Operation Manual DC-AC Servo Drive
4.5 Electrical isolation concept
The control electronics, with their logic (µP), the encoder terminals and the inputs and
outputs, are electrically isolated from the power section (power supply/DC link). All
control terminals are designed as safety extra low voltage/protective extra low voltage
(SELV/PELV) circuits and must only be operated with such SELV/PELV voltages, as per
the relevant specification. This p ovides reliable protection against electric shock on the
control side.
The control electronics therefore require a separate control supply that corresponds to
the requirements of a SELV/PELV.
The overview opposite shows the potential references for the individual connections in
detail.
This concept also delivers higher operational safety and reliability of the DC-AC Servo
Drive.
NOTE
The terminal X5 (terminal assignment) represents a special case in relation to
insulation and isolation. On this topic follow the instructions in
chapter 4.14,
page 49 .
SELV = Safety Extra Low Voltage
PELV = Protective Extra Low Voltage
4.4 Protective earth conductor connection
1.
Earth each of the DC-AC Servo Drives!
The following applies for the PE connection according to IEC/EN 61800-5-1
(as leakage current >3.5 mA):
• Use a protective earth conductor with the same cross-section as the mains cables, however at
least 10 mm² (0.016 in²) copper.
Also take into account the local and national regulations and conditions.
On operation with a Power Supply Unit:
• G393-004 (Size 1) to G393-072/G397-084 (Size 5)
− Connect the PE connections on the DC-AC Servo Drives and the Power Supply Unit together
using the pre-assembled cables.
− Connect the Power Supply Unit to the PE rail (main earth) in the switch cabinet.
• G393-090/G397-110 (Size 6A) to G397-450 (Size 7)
− Connect each DC-AC Servo Drive directly to the PE rail (main earth) in the switch cabinet.
− Connect the Power Supply Unit directly to the PE rail (main earth) in the switch cabinet.
On operation with an AC-AC Servo Drive as the supply:
• G393-004 (Size 1) to G393-072/G397-084 (Size 5)
− Connect the PE connections on the DC-AC Servo Drives together using the pre-assembled
cables. Do NOT connect the PE connection on a DC-AC Servo Drive to the PE connection
on the supplying AC-AC Servo Drive, instead directly to the PE rail (main earth) in the switch
cabinet.
− Connect the AC-AC Servo Drive directly to the PE rail (main earth) in the switch cabinet.
• G393-090/G397-110 (Size 6A) to G397-450 (Size 7)
− Connect each DC-AC Servo Drive directly to the PE rail (main earth) in the switch cabinet.
− Connect the AC-AC Servo Drive directly to the PE rail (main earth) in the switch cabinet.
2.
Also connect the protective earth conductor connections on all other components, such as mains
filter 1) etc. in a star topology to the PE rail (main earth) in the switch cabinet.
1) The components are only required for the Power Supply Unit.
You will find an example for the p otective earth conductor connections in Figure 4.17,
page 41 .
moog
Id. no.: CA97554-001 0 5 /2017
4 Electrical installation