Optidrive VTC – User Guide
4
www.invertek.co.uk
1.
Introduction
1.1.
Important safety information
Please read the IMPORTANT SAFETY INFORMATION below, and all Warning and Caution information elsewhere.
Indicates a potentially hazardous situation which, if not
avoided, could result in injury or death.
Indicates a potentially hazardous situation which, if not
avoided, could result in damage to property.
This variable speed drive product (Optidrive) is intended for professional incorporation into complete equipment or systems as part of
a fixed installation. If installed incorrectly it may present a safety hazard. The Optidrive uses high voltages and currents, carries a high
level of stored electrical energy, and is used to control mechanical plant that may cause injury. Close attention is required to system
design and electrical installation to avoid hazards in either normal operation or in the event of equipment malfunction.
System design, installation, commissioning and maintenance must be carried out only by personnel who have the necessary training
and experience. They must carefully read this safety information and the instructions in this Guide and follow all information regarding
transport, storage, installation and use of the Optidrive, including the specified environmental limitations.
The level of integrity offered by the Optidrive control functions – for example stop/start, forward/reverse and maximum speed, is not
sufficient for use in safety-critical applications without independent channels of protection. All applications where malfunction could
cause injury or loss of life must be subject to a risk assessment and further protection provided where needed.
Within the European Union, all machinery in which this product is used must comply with Directive 98/37/EC, Safety of Machinery. In
particular, the machine manufacturer is responsible for providing a main switch and ensuring the electrical equipment complies with
EN60204-1.
The driven motor can start at power up if the enable input signal is present.
The STOP function does not remove potentially lethal high voltages. ISOLATE the drive and wait 10 minutes before starting any work on
it.
Electric shock hazard! Disconnect and ISOLATE the Optidrive before attempting any work on it. High voltages are present at the
terminals and within the drive for up to 10 minutes after disconnection of the electrical supply.
Where supply to the drive is through a plug and socket connector, do not disconnect until 10 minutes have elapsed after turning off the
supply.
Ensure correct earthing connections. The earth cable must be sufficient to carry the maximum supply fault current which normally will
be limited by the fuses or MCB. Suitably rated fuses or MCB should be fitted in the mains supply to the drive.
Flammable material should not be placed close to the drive
Parameter P1-01 can be set to operate the motor at up to 120,000 rpm, hence use this parameter with care.
If it is desired to operate the drive at any frequency/speed above the rated speed (P1-09/ P1-10) of the motor, consult the
manufacturers of the motor and the driven machine about suitability for over-speed operation.
Carefully inspect the Optidrive before installation to ensure it is undamaged
The Optidrive VTC has an Ingress Protection rating of IP20 or IP)) depending on the model. Units should be installed in a suitable
enclosure.
Optidrives are intended for indoor use only.
Do not perform and flash test or voltage withstand test on the Optidrive. Any electrical measurements required should be carried out
with the Optidrive disconnected.
The entry of conductive or flammable foreign bodies should be prevented
Relative humidity must be less than 95% (non-condensing).
Ensure that the supply voltage, frequency and no. of phases (1 or 3 phase) correspond to the rating of the Optidrive as delivered.
Never connect the mains power supply to the Output terminals U, V, W.
Do not install any type of automatic switchgear between the drive and the motor
Wherever control cabling is close to power cabling, maintain a minimum separation of 100 mm and arrange crossings at 90 degrees
Ensure that all terminals are tightened to the appropriate torque setting
