User Manual for BFS-i06
www.levitronix.com
PL-3502-00, Rev00, DCO# 21-249
13
4
Installation
4.1 Electrical Installation
!
WARNING
Protective Earth on Ex-Model
Bearingless Fans placed in Ex classified locations must be connected to
protective earth, which must be done with the earth wire according to Table 5.
4.1.1 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 usage of an inadequate AC/DC power supply, mains voltages
may be present (even if the system is designed for 48 VDC). The usage
of a galvanically separated power supply, which is certified by a 3
rd
party
(UL or CE), is required.
•
Power requirement:
See section 3.1 for the power consumption of the bearingless fan. Depending
on the operating point, one power supply may be used to power several bearingless fans
simultaneously, or a supply with a lower power rating may be used. If other power supplies are used
than the ones tested by
Levitronix
®
, it is highly recommended to test these under dynamic conditions
(acceleration and deceleration of the fan up to maximum rotational speed).
•
Connection:
Make sure the AD/DC power supply is off before connecting the fan (see also
section
). Connector type
TE D3200 1-178128-3
is used as the power connector of the fan. Use
TE D3200 1-179553-3
to connect the power supply (cable adapter available as accessory). Make sure
pin allocation is according to
and connect the cable shield to earth.
Pin
Wire Color
Description
Levels
Notes
1
Red
Power +
+ 48 VDC ± 10 %
24 VDC ± 5 % (reduced performance)
2
Black
Power -
GND / earth
Internally connected to cable shield
3
Yellow-green
Cable shield
GND / earth
To be connected to earth
Table 5: Configuration of power connector
Connector type: TE D3200 1-178128-3
4.1.2 Installation of PLC Interface Signals
To operate the bearingless fan with a PLC, a minimum set of one digital input and one analog input is needed
for speed control, or a set of two digital inputs and two analog inputs for process (pressure or flow) control.
The digital and analog outputs can be used to monitor system status and operating parameters (see
CAUTION
The analog inputs and analog and digital outputs are not
galvanically isolated from the motor electronics.
•
Connection:
Connector type
TE D1200 1-1827864-6
is used as the PLC connector of the fan. Use
TE D1200 1-1903131-6
to connect the tool control (cable adapter available as accessory). Connect
the desired interfaces to the respective pins according to
hardware configuration of the PLC inputs and outputs.
