User Manual for PuraLev
®
iF100SU
www.levitronix.com
PL-4079-00, Rev00, DCO# 21-271
4.2.3 Installation Instructions for Power Supply
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
Table 4).
2. For other power supplies an open wire power cable for connection to the driver is specified in Table 4
(cable type ICP-1.1). Depending on the required hydraulic operational point (see Figure 8), the flow control
system requires 24 VDC with a maximum power of 100 W. At a lower performance power supplies with
smaller power or bigger supplies to supply several flow control systems simultaneously may be used.
Consult Figure 15 to get the power consumption depending on the flow and speed. 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 the flow or speed. The
digital and analog outputs can be used to monitor the pump status and operating parameters (see Table 14).
The analog inputs and outputs are not galvanically isolated
from the controller electronics. To avoid ground loops and
malfunctions, use floating analog signals.
1. Power off the system.
2. A signal cable with driver connector is available to simplify PLC wire connections (see Table 4 cable type
ICS-2.1). Connect the designated PLC wires according to Table 14.
3. Follow Figure 24 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
according to Figure 22 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 Table 4. Do not use multiple master
devices at the same time.
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