MicroCool IBEX 1000, Installation & Maintenance Manual

Page: 9 / 41

IBEX 8 Nozzle
SMALL FRAME_June 2020
June 20 Page 9 of 41
208-240 volt 3 phase 50/60 Hz systems connect to:
Connections:
1: Zero Voltage Remote Start (cable must be shielded)
2: Zero Voltage Remote Start (cable must be shielded)
3: Zero Voltage Fault output
4: Zero Voltage Fault output
5: 208-240 Volt 3 phase 50/60 Hz power supply- L1
6: 208-240 Volt 3 phase 50/60 Hz power supply- L2
7: 208-240 Volt 3 phase 50/60 Hz power supply- L3
Ground grnd(grn/yel)
See note 4.5
380-575 volt 3 phase systems connect to:
PD1 - Connections:
L1: 380-575 Volt 3 phase 50/60 Hz power supply- L1
L2: 380-575 Volt 3 phase 50/60 Hz power supply- L2
L3: 380-575 Volt 3 phase 50/60 Hz power supply- L3
TB1 - Connections:
1: Zero Voltage Remote Start (cable must be shielded)
2: Zero Voltage Remote Start (cable must be shielded)
3: Zero Voltage Fault output
4: Zero Voltage Fault output
Ground grnd(grn/yel)
24V DC VOLTAGE FROM PUMP CONTROLLER
External (remote) start connections must be made to TB1 Terminals 1 & 2. Note that this connection is powered by
a 24V DC voltage from the pump controller . Adequate care must be taken NOT to connect a different or separate
power supply to these terminals as serious damage could occur. If in doubt – please contact the factory for a
suitable relay or conditioner.
WARNING: The control box is completely wired for immediate operation. After high voltage wiring is connected
and the unit is supplied with proper water pressure, pressing F1 will immediately
activate the pump operation.
5. Standard wiring diagrams for MicroCool

IBEX pump modules
An as-built wiring diagram has been added to the back of this manual.
6. Principle of the VFD system on the IBEX pump unit
VARIABLE FREQUENCY DRIVE
6.1.1 A VFD (Variable Frequency Drive) controls the speed of the electrical motor (and subsequently the pump
head) by changing the Frequency (Hertz). The IBEX pump module has a Pressure Transducer unit mounted on the
high-pressure (discharge) side of the pump that transmits the water pressure back to the control unit.
6.1.2 The controller is pre-set to maintain a pressure of 1,000 psi (70 Bar) at the discharge of the pump.
6.1.3 As the water flow rate of the system changes (for example with more or less nozzles in operation) the
controller will increase or decrease the motor speed to maintain the required pressure (1,000 psi / 70 Bar).