Emotron EMX-D, Инструкция по эксплуатации, Страница: 43 / 53

36 Troubleshooting, Diagnoses and Maintenance Emotron AB 01-5016-01r0
The Trip Log can be useful for determining whether certain
trips occur at certain moments. The Trip Log also records
the time of the trip in relation to the run time counter.
8.2.1 Technically qualified personnel
Installation, commissioning, demounting, making measure-
ments, etc., of or at the variable speed drive may only be car-
ried out by personnel technically qualified for the task.
8.2.2 Opening the variable speed
drive
The connections for the control signals and the switches are
isolated from the mains voltage. Always take adequate pre-
cautions before opening the variable speed drive.
8.2.3 Precautions to take with a
connected motor
If work must be carried out on a connected motor or on the
driven machine, the mains voltage must always first be dis-
connected from the variable speed drive. Wait at least 5 min-
utes before continuing.
8.2.4 Auto reset Trip
If the maximum number of Trips during Auto reset has been
reached, the trip message hour counter is marked with an
“A”.
Fig. 35 Auto reset trip
Fig. 35 shows the 3rd trip memory menu [830]: Overvolt-
age G trip after the maximum Auto reset attempts took
place after 345 hours, 45 minutes and 12 seconds of run
time.
WARNING: If it is necessary to open the VSD
or any part of the system (motor cable
housing, conduits, electrical panels,
cabinets, etc.) to inspect or take
measurements as suggested in this instruction manual,
it is absolutely necessary to read and follow the safety
instructions in the manual.
WARNING: Always switch the mains voltage
off if it is necessary to open the VSD and wait
at least 5 minutes to allow the capacitors to
discharge.
WARNING: In case of malfunctioning always
check the DC-link voltage, or wait one hour
after the mains voltage has been switched
off, before dismantling the VSD for repair.
830 OVERVOLT G
Trp
A 345:45:12