Safety instructions
Residual hazards, layout of safety instructions
1
EDK82MV371 DE/EN/FR 6.0
75
L
Residual hazards
Protection of persons
l Disconnect the controller before you start working on it/open it and
wait for at least 3 minutes since the power terminals U, V, W; BR1,
BR2 and pins of the FIF interface remain live for this time.
– After you have opened the motec check whether the power
terminals L1, L2; U, V, W; BR1, BR2, relay outputs K11, K12, K14
and pins of the FIF interface are not live any more.
– Even if the controller is disconnected from the mains, the relay
outputs K11, K12, K14 can carry dangerous voltage!
l If you use the not open−circuit protected function Selection of
direction of rotation" via the digital signal CW/CCW (C0007 = −0− ...
−13−, C0410/3 255):
– In the event of an open circuit or failure of the control voltage, the
drive can change its direction of rotation.
l If you use the function "Flying−restart circuit" (C0142 = −2−, −3−) with
machines with a low moment of inertia and a minimum friction:
– After controller enable in standstill, the motor can start for a short
time or change its direction of rotation for a short time.
l The motec heatsink temperature is > 60 °C:
– Direct skin contact with the heatsink results in burnings.
Motor protection
l Depending on the controller settings, the connected motor can be
overheated:
– For instance, longer DC−braking operations.
– Longer operation of self−ventilated motors at low speed.
Controller/system protection
l Drives can reach dangerous overspeeds (e.g. setting of
inappropriately high field frequencies):
– The controllers do not offer any protection against these operating
conditions. For this, use additional components.
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