4 Chapter 1 Safety Information
EV1000 Series General Purpose Variable Speed Drive User Manual
or damage to components may occur as shown in
Fig.1-1.
M
U
V
W
EV1000
Drive
Fig. 1-1 Capacitors at output are prohibited
Circuit breakers connected to the output of
the drive
If circuit breaker or contactor needs to be
connected between the drive and the motor, be
sure to operate these circuit breakers or contactor
when the drive has no output to avoid damaging
of the drive.
Using host communication function
When frequently modifying the parameters
through host communication function, improper
command will cause physical damage to the
EEROM inside the drive. Please refer to
Appendix 2.
Using outside the range of rated voltage
The drive is not suitable to be used out of the
specified range of operation voltage. If needed,
please use suitable voltage regulation device.
Protection against lightning strike
There are transient surge suppressors inside the
Drive which protects it against lighting strike.
Derating due to Altitude
Derating must be considered when the drive is
installed at high altitude, greater than 1000m.
This is because the cooling effect of the Drive is
less effective in the thin air. Fig.1-2 that shows the
relationship between the altitude and rated
current of the Drive.
100%
90%
80%
1000
4000
3000
2000
(m)
Iout
Fig. 1-2 Drive Derating at different altitudes.
1.4 Disposing Unwanted Drive
When disposing the Drive, pay attention to the
following factors:
The capacitors may explode when they are burnt.
Poisonous gas may be generated when the
plastic parts like front covers are burnt.
Disposing method: Please dispose the Drive as
industrial waste.
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