6
Electrical installation
Installation instructions for fieldbus interfaces, field distributors
Manual – PROFINET IO Interfaces, Field Distributors
43
6.2.4
Residual current device
WARNING
No protection against electric shock if an incorrect type of residual current device is
used.
Severe or fatal injuries.
•
Use only universal current sensitive residual current devices of type B for invert-
ers.
•
Inverters generate a DC current component in the leakage current and can signi-
ficantly reduce the sensitivity of a residual current device of type A. A type A resid-
ual current device is thus not permitted as protection device.
•
If the use of a residual current device is not mandatory according to the standards,
SEW‑EURODRIVE recommends not to use a residual current device.
6.2.5
Line contactor
NOTICE
Damage to the MOVIMOT
®
inverter when using the line contractor K11 for jog mode.
Damage to the MOVIMOT
®
inverter.
•
Do not use the K11 line contactor (see wiring diagram) for jog mode, but only for
switching the inverter on and off. For jog mode, use the commands "CW / Stop"
or "CCW / Stop".
•
Observe a minimum switch-off time of 2 s for the input contactor K11.
•
Only use a contactor of utilization category AC3 (EN 60947-4-1) as a line con-
tactor.
6.2.6
Installation above 1000 m amsl
MOVIMOT
®
drives with mains voltages of 200 – 240 V or 380 – 500 V can also be op-
erated at an altitude of 1000 – 4000 m amsl. To do so, you must observe the following
basic conditions.
•
At heights above 1000 m amsl, the nominal continuous power is reduced due to
reduced cooling: I
N
reduction by 1% per 100 m.
•
At altitudes of 2000 – 4000 m amsl you must take limiting measures which reduce
the line side overvoltage from category III to category II for the entire system.
22870857/EN – 12/2016
