System Manual – MOVIDRIVE® compact Drive Inverters
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Installation instructions for the basic unit
Installation
Separate cable
ducts
•
Route power cables and electronics cables in separate cable ducts.
Fuses and earth-
leakage circuit
breakers
•
Install the fuses at the beginning of the supply system lead after the supply bus
junction (
→
Wiring diagram for basic unit, power section and brake).
•
SEW-EURODRIVE recommends that you do not use earth-leakage circuit breakers.
However, if an earth-leakage circuit breaker is stipulated for direct or indirect protec-
tion against contact, observe the following information in accordance with
EN 61800-5-1:
Mains and brake
contactors
•
Only use contactors in utilization category AC-3 (IEC 60947-4-1) as mains and
brake contactors.
More than four
units
•
With more than four units on an input contactor configured for the total current:
Insert a 3-phase line choke in the circuit to limit the inrush current.
PE power supply
connection
(
→
EN 61800-5-1)
•
For a supply system lead < 10 mm
2
: Route a second PE conductor with the
cross section of the supply system lead parallel to the protective earth via sepa-
rate terminals or use a copper protective earth conductor with a cross section
of 10 mm
2
.
•
For a supply system lead 10 mm
2
... 16 mm
2
: Route a copper protective earth
conductor with the cross section of the power supply line.
•
For a supply system lead 16 mm
2
... 35 mm
2
: Route a copper protective earth
conductor with the cross section of 16 mm
2
.
•
For a supply system lead > 35 mm
2
: Route a copper protective earth conductor
with half the cross section of the power supply line.
IT systems
•
SEW-EURODRIVE recommends using earth-leakage monitors with pulse-code
measurement for voltage supply systems with a non-grounded star point (IT sys-
tems). Using such devices prevents the earth-leakage monitor mis-tripping due to
the ground capacitance of the inverter. No EMC limits are specified for interfer-
ence emission in voltage supply systems without grounded star point (IT sys-
tems).
WARNING!
Incorrect earth-leakage circuit breaker installed.
Severe or fatal injuries.
MOVIDRIVE
®
can cause direct current in the protective earth. In cases where an earth-
leakage circuit breaker is used for protection against direct or indirect contact, only in-
stall a type B earth-leakage circuit breaker on the power supply end of the
MOVIDRIVE
®
unit.
NOTES
•
Only use the mains contactor K11 (
→
Sec. "Wiring diagram for basic unit") to
switch the inverter on and off. Do not use it for jog mode. Use the commands
"Enable/Stop", "CW/Stop" or "CCW/Stop" for jog mode.
•
Observe a minimum switch-off time of 10 s for the input contactor K11.
Summary of Contents for MOVIDRIVE compact MCH41A
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