User Manual for PuraLev
®
iF30SU
www.levitronix.com
PL-4078-00, Rev00, DCO# 20-228
23
4.2.3 Installation Instructions for Power Supply
!
WARNING
Hazardous voltage may be present.
Always isolate the electrical power supply before making or changing
connections to the unit.
In case of the usage of an inadequate AC/DC power supply, mains
voltages may be present (even if the system is designed for 24 VDC).
The usage of a galvanic separated power supply, which is certified by a
3
rd
party (UL or CE), is highly recommended.
1.
Certified and tested power supplies (desktop and DIN rail version) are available as an accessory
(see
).
2.
For other power supplies an open wire power cable for connection to the driver is specified in
ICP-1.1
). Depending on the required hydraulic operational point (see
), the flow control system requires 24 VDC with a maximum power of 35 W. At a lower
performance power supplies with smaller power or bigger supplies to supply several flow control
systems simultaneously may be used.
Consult
to get the power consumption depending
on the flow.
If other power supplies are used than the one recommended by
Levitronix
®
, it is highly
recommended to test these under dynamic conditions (acceleration and braking of the pump rotor
speed).
3.
Make sure that the polarity is correct and that AC/DC power supply is off.
4.2.4 Installation of Flow Sensor
See
Section 4.4
4.2.5 Installation PLC Interface Signals
To operate the flow control system with a PLC the analog input can be used to set either the speed or the
process value (flow or pressure). The digital and analog outputs can be used to monitor the pump status and
operating parameters (see
).
CAUTION
The analog inputs and outputs are not galvanically isolated from
the controller electronics. To avoid ground loops and mal-
functions, use floating analog signals.
1.
Power off the system.
2.
A signal cable with driver connector is available to simplify PLC wire connections (see
cable type
ICS-2.1
). Connect the designated PLC wires according to
3.
Follow
of the OEM model as reference for hardware configuration of the PLC in/outputs.
4.
Protect the un-used wires against short-circuit to each other.
4.2.6 Installation Fieldbus Interfaces
For usage of the
RS485
(
Fieldbus IN
) as a control or service interface, an initialization resistor network
shall be used to have a stable communication and avoid disturbance effects. The
RS485
Modbus RTU
protocol for master communication is available at
Levitronix
®
on request. The
Fieldbus
OUT
interface can be used to feed through the
RS485
bus to other devices.
For
Service
and
Debugging
purposes with the
Levitronix
®
Service Software
and PC a USB/RS485 converter
cable with integrated initialization resistors can be ordered according to
. Do not use multiple master
devices at the same time.
