Safety instructions
Residual hazards
2
Ò
13
EDSMDAG EN 2.0
2.2 Residual hazards
Protection of persons
ƒ Switch off the high voltage on−board voltage completely before working on the
devices.
ƒ Before working on the device, check whether all power terminals are deenergised
because
– after disconnection, the power terminals U, V and W remain live for at least 5
minutes depending on the system.
– the power terminals +UG, −UG, U, V and W remain live while the motor is rotating.
– Batteries and energy storages can carry hazardous voltage over a longer period of
time.
Device protection
ƒ Connect/disconnect all pluggable terminals only in deenergised condition!
ƒ Detach the controllers from the installation, e.g. from the motor or mounting wall,
only in deenergised condition!
Motor protection
ƒ With some settings of the controller, the connected motor can be overheated.
– E.g. longer operation of the DC injection brake.
– Longer operation of self−ventilated motors at low speed.
– Wrong frequency or voltage settings in the motor parameters (especially with
120 Hz motors).
Protection of the machine/system
ƒ Drives can reach dangerous overspeeds (e.g. setting of high output frequencies in
connection with motors and machines unsuitable for such conditions):
– The controllers do not offer any protection against such operating conditions. Use
additional components for this purpose.
Symbol Description
Þ
Long discharge time: All power terminals remain live for a few minutes after mains disconnection!
The duration is given under the warning symbol on the device.
}
High leakage current: Carry out fixed installation and PE connection according to EN 6180051!
'
Electrostatic sensitive devices: Before working on the device, the personnel must be free of
electrostatic charge!
|
Hot surface: Risk of burns! Hot surfaces should not be touched without wearing protective gloves.
}
¶
Read the documentation: Before working on the device, the personnel must read and act in
accordance with the documentation supplied with the product, especially the warnings and the
safety instructions!
{
Dangerous voltage: Before working on the device, switch off the HV on−board voltage completely!
To Next Page
Loading...
