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Product Introduction
Basic Functions - 18K & 24K 230 volt
3. Reducing frequency at normal speed and stopping machine: If [Tfrequency reducing temperature at normal speed
during discharging]≤TDischarge<
[Tfrequency reducing temperature at high speed during discharging] you should adjust the compressor frequency by
reducing 8Hz/90s till the lower limit; After it was running 90s at the lower limit, if [Tfrequency reducing temperature
at normal speed during discharging]≤TDischarge, you should discharge to protect
machine stopping;
4. Reducing frequency at high speed and power turn-off: If [Tfrequency reducing temperature at high speed during
discharging]≤TDischarge<
[TStop temperature during discharging] you should adjust the compressor frequency by reducing 30Hz/90s till the
lower limit; After it was running
90s at the lower limit, if [Tfrequency reducing temperature at normal speed during discharging]≤TDischarge, you
should discharge to protect machine stopping;
5. Power turn-off:If the [TPower turn-off temperature during discharging]≤TDischarge, you should discharge to
protect machine stopping; If TDischarge<
[TLimited frequency temperature during discharging] and the compressor has been stopped for 3 minutes, the
machine should be allowed to operate.
6. If the discharging temperature protection of compressor continuously occurs for six times, it should not be
resumed automatically, and you should press the ON/OFF button to resume. During the process of running, if the
running time of compressor exceeds the
[tProtection times clearing of discharge], the discharge protection is cleared to recount. Stopped or transferred to
supply air mode will clear the trouble times immediately (if the trouble cannot be resumed, mode transferring also
will not clear it).
7. Frequency limited
If [ILimited frequency when overcurrent]≤IAC Electric current <[Ifrequency reducing when overcurrent], you
should limit the frequency raising of compressor.
8. Reducing frequency:
If [IFrequency reducing when overcurrent]≤IAC Electric current<[IPower turn-off when overcurrent], you should
reduce the compressor frequency till the lower limit or exit the frequency reducing condition;
9. Power turn-off: If [IPower turn-off machine when overcurrent]≤IAC Electric current , you should carry out the
over current stopping protection; If
IAC Electric current<[TLimited frequency when overcurrent] and the compressor has been stopped for 3 minutes,
the machine should be allowed to operate.
10. If the overcurrent protection continuously occurs for six times, it should not be resumed automatically, and you
should press the
ON/OFF button to resume. During the process of running, if the running time of compressor exceeds the
[tProtection times clearing of overurrent], the discharge protection is cleared to recount.
(6)Voltage sag protection
After start the compressor, if the time of DC link Voltage sag [USagging protection voltage] is measured to be less
than [tVoltage sag protection time], the machine should be stop at once, hand on the voltage sag trouble, reboot
automatically after 30 minutes.
(7) Communication fault
When you have not received any correct signal from the inner machine in three minutes, the machine will stop
for communication fault. When you have not received any correct signal from driver IC (aim to the controller
for the separating of main control IC and driver IC), and the machine will stop for communication fault. If the
communication is resumed, the machine will be allowed to operate.
