Contents
BU1100 GB
3
Special safety and operating instructions for the SK 1000E
NORDAC SK 1000E servo controllers are equipment for use in industrial high voltage
systems and are operated at voltages that could lead to severe injuries or death if they
are touched.
•
The equipment continues to carry hazardous voltages for up to 5 minutes after being switched off at the
mains. The equipment may only be opened or the cover or control element removed 5 minutes after the
equipment has been disconnected from the power supply. All covers must be put back in place before
the line voltage is switched back on again.
•
Even during motor standstill (e.g. caused by a release block, blocked drive or output terminal short
circuit), the line connection terminals, motor terminals and braking resistor terminals may still conduct
hazardous voltages. A motor standstill is not identical to galvanic isolation from the mains.
•
Warning
: even parts of the control card and, in particular, the connection plug for Flash-JTAG program
programming can conduct hazardous voltages. When programming the DSP via the JTAG plug, a
specially available opto-isolator must be used. The external control terminals are line potential-free. The
JTAG interface is a non-proprietary standardised programming interface for DSP and controller for
which several companies, e.g. Spectrum Digital, offer suitable connection adapters. The internal safety
covers on these items must not be removed.
•
Warning
, under certain settings the servo controller can start automatically after the mains are switched
on.
•
The circuit boards contain highly-sensitive MOS semiconductor components that are particularly
sensitive to static electricity. Avoid touching circuit tracks and components with the hand or metallic
objects. Only the terminal strip screws may be touched with insulated screwdrivers when connecting the
cables.
•
The servo controllers are only intended for permanent connection and may not be operated without
effective earthing connections that comply with local regulations regarding large leak currents (> 3.5
mA). VDE 0160 requires the installation of a second earthing conductor or an earthing conductor cross-
section of at least 10 mm
2
.
•
Normal FI circuit breakers are generally not suitable as the sole protection in servo controllers when the
local regulations do not permit a possible DC proportion in the faulty current. The standard FI circuit
breaker must comply with the new design as per VDE 0664.
•
NORDAC SK 1000E servo controllers are maintenance-free when used correctly. The cooling surfaces
must be regularly cleaned with compressed air if the ambient air is dusty.
ATTENTION! DANGER TO LIFE!
The power unit can continue to carry voltages for up to 5 minutes after being switched off at the mains. Terminals,
motor cables and motor terminals may be live! Touching open or free terminals, cables and equipment components
can lead to severe injury or death!
CAUTION
•
Children and the general public must be kept away from the equipment!
•
The equipment may only be used for the purpose intended by the manufacturer. Unpermitted
modifications and the use of spare parts and additional equipment that has not be bought from or
recommended by the equipment manufacturer can lead to fire, electric shock and injury.
•
Keep these operating instructions in an accessible location and ensure that every operator uses them!
European EMC guideline
When the NORDAC SK 1000E is installed according to the instructions in this manual, it
will meet all requirements in the EMC guideline, as per the EMC product standard for
motor-operated systems EN 61800-3 (see also the chapter Electromagnetic
compatibility [EMC]).
Utilisation in North America,
UL and CSA authorisation
“Suitable for use on a circuit capable of delivering not more than 5000 rms symmetrical amperes, up to
460 Volts (three phase)” and “when protected by J class fuses.” as indicated.
In preparation
