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MALOPERATION AND THE RESULTS
With maloperation, it is possible that power, voltage or current levels which are higher than planned
reach the Thyristor Power Controller or load. On principle, this can lead to the Power Controller or
load being damaged. It is important that preset parameters are not adjusted in any way that may
cause the Power Controller to overload.
TRANSPORT
Thyristor Power Controllers are only to be transported in their original packaging (protection
against damage, e.g. due to impact, being knocked, soiling).
INSTALLATION
• If the Thyristor Power Controller is brought into the operations room from a cold environment,
moisture can occur. Prior to it being commissioned, the Thyristor Power Controller must be
absolutely dry. For this reason, wait for a minimum period of two hours before commissioning.
• Install the device upright.
CONNECTION
• Prior to connection, it must be ensured that the voltage information on the type plate corres-
ponds with the mains voltage.
• The electrical connection is carried out at the designated points with the required cross section
and the appropriate screw cross sections.
OPERATION
• The Thyristor Power Controller may only be connected to the mains voltage if it has been ensured
that any hazard to people and system, especially in the load section, has been eliminated.
• Protect the device from dust and moisture.
• Do not block vents.
MAINTENANCE, SERVICE, MALFUNCTIONS
The icons used below are explained in the chapter safety regulations.
CAUTION
Should smoke, smell or fi re occur the Power Controller must be disconnected from the mains
immediately.
CAUTION
For maintenance and repair work, the Power Controller must be disconnected from all external vol-
tage sources and protected against restarting. Make sure to wait minimum 1 minute after switch-off
(discharge time of the attenuation capacitors). The voltage-free state is to be determined by means
of suitable measuring instruments. This work is only to be carried out by a skilled electrician. The
electrical regulations which are locally valid are to be adhered to.
CAUTION
The Thyristor Power Controller contains hazardous voltages. Repairs may generally only be perfor-
med by qualifi ed and trained maintenance personnel.