Lenze 9300 vector - Application as Directed; Transport, Storage, and Installation

Safety instructions
Residual hazards
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EDKVF93−05 EN 1.0
1.2 Residual hazards
Protection of persons
ƒ Before working on the controller, check that no voltage is applied to the power
terminals:
– The power terminals U, V, W, +U
G
, −U
G
, BR1, BR2 and 101 ... 104 remain live for at
least five minutes after disconnecting the mains.
– The power terminals L1, L2, L3, U, V, W, +U
G
, −U
G
, BR1, BR2 and 101 ... 104 remain
live with the motor stopped.
ƒ The leakage current to earth (PE) is > 3.5 mA. According to EN 50178 a fixed
installation is required.
ƒ The heatsink of the controller has an operating temperature of > 80 °C:
– Contact with the heatsink results in burns.
ƒ If you use the "flying−restart circuit" function (C0142 = 2, 3) for machines with a low
moment of inertia and minimum friction:
– After the controller is enabled at standstill, the motor can start briefly or change
briefly the direction of rotation since the flying restart process is executed at zero
speed as well.
ƒ During parameter set transfer, the control terminals of the controller can have
undefined states!
– Therefore the plugs X5 and X6 must be pulled off before the transfer is executed.
This ensures that the controller is inhibited and all control terminals have the
specified "LOW" state.
Device protection
ƒ Frequent mains switching (e.g. inching mode via mains contactor) can overload and
destroy the input current limitation of the controller.
– Thus, at least five minutes have to pass between two switch−on processes.
– In case of frequent, safety−related disconnections use the "safe torque off" safety
function (STO).
Motor protection
ƒ Certain drive controller settings can overheat the connected motor:
– E. g. long−time operation of the DC injection brake.
– Long−time operation of self−ventilated motors at low speeds.
Protection of the machine/system
ƒ Drives can reach dangerous overspeeds (e. g. setting of high output frequencies in
connection with motors and machines not suitable for this purpose):
– The drive controllers do not provide protection against such operating conditions.
For this purpose, use additional components.
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