Lenze 8400 protec Manual - Manual (Page 108)

Electrical installation − EMS version
Important notes
Electrical isolation
7
l
108 EDS84DPS424 EN 5.0
7.1.1 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
X70
X8x
X10
(24 V)
(T1/T2)
 ‚
X50
E84DWPT006
Fig. 7−1 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 terminals
X10, X11 Mains
X21 Motor
X20 Brake resistor
‚ Control terminals
X10 (24 V) 24 V supply voltage for the motor holding brake
X21 (T1/T2) Motor temperature monitoring
X3x Fieldbus communication, CAnopen Master PLC
X4x Digital inputs/outputs
X50 Analog input
X70 Diagnostics
X8x SSI, RS485/422
7.1.2 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.