Pump Solutions Group Neptune Solenoid-driven Diaphragm Metering Pump ARPZ-31_61_12 - Manual (Page 24)

23
Installation
AC200V
3-phase
GFCI : Ground fault circuit interrupter
CB
: Circuit breaker
MC1, 2 : Electromagnetic contactor
TH :
Thermal relay
CP : Circuit protector
SS1, 2 : Selector switch
OL :
Overload relay
PL : Pilot lamp
Irrigation
pump
P
GFCI CB MC1 TH
U
V
W
PE
CP MC2
CB
PE
PZ/ARPZ
SS1
SS2
Automatic
Off
Manual
Automatic
Off
Manual
X
OL
MC1
MC2
PL1
PL2
Irrigation
pump
TH
Operation signals
PZ/ARPZ
Power supply
GFCI CP
Power supply
AC100~240V
PE
PZ/ARPZ
Electrical wiring
WARNING !
• This pump cannot be used in explosion-proof regions or in explosive or combustible atmospheres.
• Take steps to ensure that the power will not be turned on during the course of work. Hang a sign on the
power switch indicating that work is in progress.
• Do not operate the pump with wet hands. Doing so may result in electric shocks.
• Securely ground the protective earth terminal, and be absolutely sure to install a ground fault circuit
interrupter. Otherwise, you may receive electric shocks.
• Do not attempt to disassemble the pump body or the circuit parts.
! CAUTION
• The wiring must be done by a qualified electrician or somebody with electrical knowledge.
• Connect the wires after checking the supply voltage. Do not connect the wires to a power supply that is
not within the rated voltage range.
Example of wiring
● When operating the pump in tandem
with an irrigation pump, etc.
●When running the pump on its own
IMPORTANT
• Be absolutely sure to use a commercial power source (the power
supplied by an electric power company) for supplying the power.
Power sources in which an AC power regulator is installed
Power sources on the output side of an inverter
• Since a high voltage is generated when the power is cut off or in
other such circumstances and this may result in trouble, do not
take the power from the same terminals as the induction motor of
an irrigation pump, etc.
NOTE
• A circuit protector (CP) is ideal as the injection pump’s overcurrent protection device from the
standpoint of its operating duration and breaking current characteristics. (5A, medium-speed type)
• The circuit protector (CP) shown as the recommended protection device can also be used as the power
switch, thus simplifying the wiring connections.
• The thermal relay (TH) used for the motor is not appropriate for protecting the pump from the standpoint
of its characteristics.
P
Irrigation
pump, etc. U
V
W
PZ/ARPZ
PE
Power supply
Power cable (2m) is already attached.
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