12
Input Voltage and Input Current
The drives are designed for rated AC power
supply: 50/60Hz, 380-480V on EV20XXM
KX-XXX models and 208-240V on
EV20XXM-JX-XXX drive models.
Drive
AC Input Overcurrent
Protection
EV2080J
24A RMS
EV2080K
15A RMS
EV2055J
18A RMS
EV2055K
12A RMS
Power Factor Correction
Drive has passive power factor correction,
which is capable of improving efficiencies.
Speed Control
The frequency range of the drive is from
15Hz to 120Hz. If the frequency set by unit
controller is less than 15Hz but not zero,
then the compressor will work at 15Hz.
Similarly, if the frequency set by unit
controller is greater than 120Hz, then the
compressor will work at 120Hz.
There are three cases for unit shut down.
Case I (Controlled shut down): Unit shut
down the compressor.
Case II (Faulted condition): When drive
faults occur, the drive will shut down the
compressor. Major and minor faults have
different shutdown sequences. For major
faults, the drive trips the compressor
immediately (from running frequency to
zero frequency). For minor faults, it has the
same sequence as Case I. As mentioned
above clear faults using the 'Fault Clearing'
method shown below.
Case III: Loss of power shut down, this
control procedure is the same as major fault
shut down.
Fault Clearing
Faults are cleared through unit controls
interface.
Status Indication
There are two control chips on the drive
board and all of them have their own LED
for status display. COMMS MCU has three
LED indicators, DSP has one LED indicator.
LED for COMMS MCU
Operation Indicating LED
(Green LED805)
When the drive is in normal state (no
protection and fault), the drive is in standby
state and the compressor does not work, the
LED will blink every 2 seconds. If the
compressor is running, the LED will always
be on.
Protection Indicating LED
(Yellow LED804)
When the drive is under protection, the
yellow LED will blink. Refer to
Troubleshooting Table
more information.
Hardware Fault Indicating LED
(Red LED803)
When the drive is under hardware fault, the
red LED will blink. Refer to
Troubleshooting Table
for more
information.
LED for Drive Control DSP Chip
(Green LED802)
When the drive is in normal state, whether
the compressor is running or standby, the
LED will blink every 1 second. When the
drive is under protection or hardware fault,
the LED will blink every 1/8 of a second.
Содержание RQ SERIES
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