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BOOSTER PUMP SYSTEM
BOOSTER PUMP SYSTEM N747D
Operation of ON-OFF control method is carried on by Max/Min set
value of pressure switch. As it is under control of controller, general
functions such as shift operation can be carried out. Also water is
supplied continuously, however, the pipe pressure is little bit unstable
than RPM control due to the characteristics of ON/OFF of pressure
switch. Therefore, in case of sequential 2 operation, please call our
A/S team immediately to get support.
3. sequential 3 operation
Reason :
This is the last emergent operation method to be carried when
normal operation is unavailable due to the failure of most of core
components such as inverter, pressure transmitter, pressure switch,
controller and etc.
Starting method:
Minimal water can be supplied through operation with #1 pump only
by pressure switch, if the “operation select” switch of the panel is set
at emergency position manually. In this case, please call our A/S
team immediately to get support.
Occurrence frequency : It is very rare to operate by the emergency
switch.
5. RS-485
Communication specification
Item Specification
Com Speed 1200/2400/4800/9600/19200 bps
Control procedure Async communication
Communication system Half duplex system
Bit 8 bit
Stop bit 1 bit
Error Check(CRC16) 2 byte
Parity check None