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System Manual – MOVIDRIVE® compact Drive Inverters
4
Permitted voltage supply systems for MOVIDRIVE®
Project Planning
4.10
Permitted voltage supply systems for MOVIDRIVE
®
4.11
Mains contactors and input fuses
Mains contactor
•
Use only mains contactors in utilization category AC-3 (EN60947-4-1).
•
Do not use the K11 mains contactor for jog mode, but only for switching the inverter
on and off. Use the commands "Enable/Stop," "CW/Stop" or "CCW/Stop" for jog
mode.
Input fuse types
Line protection types in the operating classes gL, gG:
•
Rated fusing voltage
≥
Rated supply voltage
•
Depending on the inverter utilization, rated fusing currents have to be designed for
100 % or 125 % of the rated inverter currents.
Line protection switches with characteristics B, C:
•
Line protection rated voltage
≥
rated supply voltage
•
Rated line protection currents must be 10 % above the rated inverter current.
NOTE
MOVIDRIVE
®
is intended for operation on voltage supply systems with a directly
grounded star point (TN and TT power systems). Operation on voltage supply systems
with a non-grounded star point (for example IT power systems) is also permitted. In
such a case, SEW-EURODRIVE recommends using earth-leakage monitors employ-
ing pulse-code measurement. Using such devices prevents the earth-leakage monitor
mis-tripping due to the ground capacitance of the inverter.
STOP!
Activating the mains contactor K11 within 10 s (e.g. in jog mode), can damage the
MOVIDRIVE
®
unit.
•
Do not use the mains contactor K11 (
→
MOVIDRIVE
®
compact
operating instruc-
tions, section "Wiring diagram for basic unit") for jog mode but only to switch the
inverter on and off. For jog mode, use the commands "Enable/Stop," "CW/Stop"
or "CCW/Stop."
•
Observe a minimum switch-off time of 10 s for the mains contactor K11.
Summary of Contents for MOVIDRIVE compact MCH41A
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