CIRCUTOR EMF-EMB Series - Manual (Page 10)

----- Static switching modules EM ---------- M98116701-20 Pág: 9
• During the normal operation , the number of connected steps can be seen by the indication
LED in the front panel of COMPUTER...f. Check that the number of connected steps
conforms with the Nr. of steps shown by the COMPUTER..f LEDs.
• To see whether a step is connected or not, see the green LED at the CPCm card. The green
LED and the three red LEDs must light simultaneously , otherwise indicates that there is one
of the phases which does not work properly.
• If one of the steps is never connected, try to force its connection by jumping the terminals A
and C in the corresponding EM module. If the step connects in the forced mode (check the
current in each phase with a current clamp) , then the fault is probably in the COMPUTER...f
or in the wiring.
• If there are some inactive steps and the COMPUTER...f shows a lack of compensation ,
check the settings of such COMPUTER...f.
• Once the normal operation is achieved , check if the current consumption of each step is
correct, according to its rated power (Current is shown in the capacitor label). An excess of
consumption may be due to an excess of supply voltage or to the presence of harmonics.
• In case of a faulty operation which may not be solved with the above indications , contact the
CIRCUTOR S.A. technical service.
¡IMPORTANT!
After one hour in normal operation , check the temperature of the heat sinks. It must be
below 80 ºC. In case of higher temperature check the cooling conditions.
8
MAINTENANCE.
Yearly inspection:
• Inspect the equipment visually and check the temperature of the capacitors and the thyristor
heat sinks.
• Check that all the steps operate when necessary. Otherwise check the fuses.
• Check that the supply voltage is within the limits.
• Check that the current of each step is in accordance with its labelled value. A higher current
may be due to the presence of harmonics. A low current may indicate a faulty capacitor.
• Check that there are not loose connections at the terminals.
9
TECHNICAL SERVICE AND WARRANTY
All CIRCUTOR products are covered by a warranty of 1 year in case of any manufacturing
default . The warranty does not cover the protection elements like fuses or other, neither the
elements subject to ageing in normal service.
This warranty will not be applicable in case of wrong manipulation or in case that the rules of
installation have not been respected.
CIRCUTOR offers to all its customers the assistance of its TECHNICAL AND ENGINEERING
DEPARTMENTS.