41
INSTALLATION
Before installing and using STEADYPRES:
-
read this manual thoroughly and carefully and refer to the Safety Standards.
-
Before making the connections, make sure that the ends of the line wires are not live.
-
Make sure also that the electric power supply network is protected by thermal magnet and
differential protections according to the applicable Standard in force. The differential switch
must be high-sensitivity type
(30 mA in class A for domestic application, class B for industrial
applications)
-
Ground connections must be in compliance with Standards.
-
Check that the plate data is that required and suitable for the system
-
The cable section (power supply cable and connection cable between the inverter and the
motor) must be dimensioned according to:
o
Voltage (230 V single-phase, 230 V three-phase, 400 V three-phase)
o
Pump power
o
Cable lenght
-
The power supply cable and the motor cable must be sized to curb any power voltage drop
within 3%.
-
The power supply cable and the motor cable must be suitably shielded to comply with EMC
standards.
-
In case of long cables between Inverter and pump motor, evaluate the application of inverter
output sinusoidal filter. It aids smooth running of motors eliminating negative effect of voltage
peaks
For CONNECTIONS see
QUICK INSTALLATION GUIDE
.
SELF-LIMITING OVERLOAD
If the
current
detected by
the inverter
Or the
temperature
of the
inverter
Exceed
the
safety
limits
STEADYPRES
proceeds to a
progressive reduction
in the frequency of
operation
As long as the
values are
returned within
the limits
While operating in self-limitation, DISPLAY and LED flash to indicate the fault status
STARTING UP
-
Before running, this Manual must have been carefully read and the instructions followed;
wrong settings and operations are thus prevented that could cause operating faults
-
Before starting the system, the pumps must be primed (filling and air bleeding)
-
After performing the operations described in the INSTALLATION chapter, the inverter can be
started.
-
When STEADYPRES is switched on, it enters the STARTING phase, which lasts 10
seconds, after which STEADYPRES returns to the same operating conditions in which it
was when it was last switched off:
o
in WORK mode if at the time of the last shutdown was IN SERVICE
