Lenze 8200 motec frequency inverter 0.25kW-7.5kW - Manual (Page 14)

Safety instructions
Residual hazards, Layout of the safety instructions
2−5
L
EDB82MV752 EN 5.2
2.3 Residual hazards
Protection of
persons
·
Deenergise the motec before you start working on it or open the housing. Wait for at least one minute since the power terminals U, V, W; BR0,
BR1, BR2 and the pins of the FIF interface remain live after switching off the mains.
– After opening the motec, check if the power terminals L1, L2, L3; U, V, W; BR0, BR1, BR2, the relay outputs K11, K12, K14, and the pins of
the FIF interface are dead.
– Even if the motec is disconnected from the mains, the relay outputs K11, K12, K14 can be live!
·
If you do not use the fail−safe function selection of direction of rotation" via the digital signal DCTRL1−CW/CCW (C0007 = −0− ... −13−, C0410/3
¹ 255):
– In case of open circuit or failure of the control voltage, the drive may change the direction of rotation.
·
If you use the "flying restart circuit" function (C0142 = −2−, −3−) for machines with a low moment of inertia and low friction:
– After controller enable has been effected in the standstill status, the motor may temporarily start up, or change direction of rotation.
·
The motec heatsink has an operating temperature > 60 °C:
– Skin contact with the heatsink causes burns.
Device
protection
·
8200 motec 3 ... 7.5 kW (E82MV302_4B, E82MV402_4B, E82MV552_4B, E82MV752_4B):
Frequent mains switching (e.g. inching mode via mains contactor) may overload and destroy the input current limitation of the controller:
– Thus, at least three minutes have to pass between two switch−on processes.
·
Depending on the controller settings, the connected motor can be overheated:
– e. g. long−time operation of the DC injection brake.
– long−time operation of self−ventilated motors at low speeds.
Overspeed
·
Drives can attain dangerous overspeeds (e. g. setting of high output frequencies with regard to motors and machines not qualified for this
purpose):
– The drive controllers do not provide protection against such operating conditions. For this purpose, apply additional components.
2.4 Layout of the safety information
All safety information given in these Operating Instructions has the same layout:
Signal word (characterises the severity of danger)
Note (describes the danger and gives information how to avoid it)
Icons used Signal words
Warning of danger
to persons Warning of hazardous
electrical voltage Danger! Warns of impending dange r.
Consequences if disregarded:
Death or most severe injuries
Warning of a general
danger Warning! Warns of potential, very hazardous situations.
Possible consequences if disregarded:
Death or most severe injuries
Caution! Warns of potential, hazardous situations.
Possible consequences if disregarded:
Light or minor injuries
Warning of damage
to material Stop! Warns of potential damage to material.
Possible consequences if disregarded:
Damage of the controller/drive system or its environment
More information Tip! Designates a general, useful note.
If you observe it, handling of the controller/drive system is made easier.