Residual Hazards; Layout Of The Safety Information - Lenze Global Drive 8200 vector Instructions De Montage

Safety information
Residual hazards, Layout of the safety instructions
1.2

Residual hazards

•
Protection of Before working on the controller check that no voltage is applied to the power terminals, the relay output and the pins of the FIF
persons interface.
– because the power terminals U, V, W, +UG, -UG remain live for at least 3 minutes after mains switch-off.
– because the power terminals L1, L2, L3; U, V, W, +UG, -UG remain live after the motor is stopped.
– because the relay outputs K11, K12, K14 und K21, K22, K24 can remain live when the controller is disconnected from the mains.
•
If you use the not open-circuit protected function "Selection of direction of rotation" via the digital signal DCTRL1-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.
•
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.
•
The heatsink of the controller has an operating temperature of > 80 °C:
– Direct skin contact with the heatsink results in burnings.
Variant E82EVxxxK4B241 (Safe standstill):
•
In the event of a short circuit of two power transistors, a residual movement of up to 180°/pole pair number can occur at the motor!
– Example 4-pole motor: residual movement max. 180°/2 = 90°
– This residual movement must be taken into account for the risk analysis, e.g. safe standstill for main spindle drives.
•
Controller protection All pluggable connection terminals must only be connected or disconnected when no voltage is applied!
•
Cyclic connection and disconnection of the controller supply voltage with L1, L2, L3 can exceed the input current limit:
– Allow at least 3 minutes between disconnection and reconnection.
•
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.
•
Overspeeds 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.
1.3

Layout of the safety information

All safety information given in these Operating Instructions has the same layout:
Signal word
Note (describes the danger and gives information how to avoid it)
Icons used
Warning of danger
to persons
Warning of damage
to material
More information
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(characterises the severity of danger)
Signal words
Warning of hazardous Danger!
electrical voltage
Warning of a general Warning!
danger
Caution!
Stop!
Tip!
EDK82EV903 DE/EN/FR 2.2
Warns of impending danger.
Consequences if disregarded:
Death or most severe injuries
Warns of potential, very hazardous situations.
Possible consequences if disregarded:
Death or most severe injuries
Warns of potential, hazardous situations.
Possible consequences if disregarded:
Light or minor injuries
Warns of potential damage to material.
Possible consequences if disregarded:
Damage of the controller/drive system or its environment
Designates a general, useful note.
If you observe it, handling of the controller/drive system is made easier.
L