Lenze 8400 protec - Electrical isolation; Device protection

Electrical installation − HighLine/StateLine version
Important notes
Electrical isolation
6
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76
EDS84DPS424 EN 5.0
6.1.1 Electrical isolation
The protective insulation of the "8400 Inverter Drives" controllers is implemented
according to EN 61800−5−1. The following illustration shows the insulation concept.
X10
X11
X20
X21
X21
X3x
X4x
X50
X70
X80X6x
X10
X11
(24 V)
(24 V)
(T1/T2)

X22
X20
(T1/T2)
E84DWPT005
Fig. 6−1 Electrical isolation between power terminals, control terminals and housing
Isolation by functional insulation
I
Isolation by basic insulation
II
Safe isolation by double or reinforced insulation
Protection against accidental contact is guaranteed without any further
measures.
 Power connections
X10, X11 Mains
X21 Motor
X20 Brake resistor
 Control terminals
X10 (24 V)
X11 (24 V)
24 V supply voltage
X20 (T1/T2) brake resistor temperature monitoring
X21 (T1/T2) Motor temperature monitoring
X22 Voltage supply of external fan − only for 7.5 kW devices
X3x Fieldbus communication
X4x Digital inputs/outputs
X50 Analog input
X6x Safety system
X70 Diagnostics
X80 SSI
6.1.2 Device protection
ƒ In case of condensation, do not connect the controller to the mains voltage before
the moisture has evaporated completely.
ƒ The controller must be protected by external fuses.
ƒ Unused control inputs and outputs must be closed according to the intended type of
protection.