Safety instructions
Residual hazards
2
83
EDKCSEX064 DE/EN/FR 6.0
2.3 Residual hazards
Protection of persons
ƒ Before working on the axis module, check that no voltage is applied to the
power terminals, because
– the power terminals +UG, −UG, U, V and W remain live for at least 3
minutes after mains switch−off.
– the power terminals +UG, −UG, U, V and W remain live when the motor
is stopped.
ƒ The heatsink has an operating temperature of > 70 °C:
– Direct skin contact with the heatsink results in burns.
ƒ The discharge current to PE is > 3.5 mA AC or. > 10 mA DC.
– EN 61800−5−1 requires a fixed installation.
– The PE connection must comply with EN 61800−5−1.
– Comply with the further requirements of EN 61800−5−1 for high
discharge currents!
Device protection
ƒ All pluggable connection terminals must only be connected or
disconnected when no voltage is applied!
ƒ The power terminals +UG, −UG, U, V, W and PE are not protected against
polarity reversal.
– When wiring, observe the polarity of the power terminals!
ƒ Power must not be converted until all devices of the power system are
ready for operation. Otherwise, the input current limitation may be
destroyed.
Frequent mains switching (e.g. inching mode via mains contactor) can overload
and destroy the input current limitation of the axis module, if
ƒ the axis module is supplied via the ECSxE supply module and the input
current limitation is activated depending on the DC−bus voltage
(C0175 = 1 or 2).
ƒ the axis module is not supplied via a supply module delivered by Lenze.
ƒ the low−voltage supply (24 V) is switched off.
For this reason allow a break of at least three minutes between two starting
operations!
Use the safety function ˜Safe torque off˜ (STO) for frequent disconnections for
safety reasons.
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