~ 23 ~
NOVATEK-ELECTRO
UBZ-304
A
–
UBZ;
F1- F3
–
Fusible element for 1
А (or
its equivalent);
K
–
Magnetic starter (MS);
R1
–
Temperature transmitter (for example: PTC1000, EKS111 made by DANFOSS);
R2
–
Temperature transmitter (for example: PT100);
Q1, Q2
–
automatic breaker;
T1-T3
–
Current transformer (output 5 A);
T4
–
Differential transformer.
Figure 5.2
–
UBZ-304 Connection Diagram
5.1.5 UBZ-304 connect
5.1.5.1 Connect the current transformers in accordance with Fig.5.2;
5.1.5.2 Pass through a differential current transformer (zero sequence transformer) all three phase wires and
connect it to UBZ;
5.1.5.3 To monitor and measure the motor insulation, connect the control terminal of the insulation
23
to one of
output contacts of MS. If the motor housing is not grounded, or network with isolated neutral is used, or neutral wire
is not connected to UBZ terminal, it is necessary to connect electrically the motor housing to the terminal
24
of UBZ.
5.1.5.4
Connect the motor to UBZ in accordance with Fig.5.2. When using the motor with the switching over the
windings during star-delta starting-up, perform the connection in accordance with Appendix
В
.
5.1.5.5
To work with UBZ from personal computer as the control or supervising using the program of “UBZ
-
304/305
Control Panel” it is necessary
:
- download
the program of “UBZ
-
304/305 Control Panel”
from the manufacturer's web-site
http://novatek-electro.com/eu/software.html
–
to install on the PC the program of “UBZ Control Panel”, starting the program
"Setup_cplubz304(Х.Х).exe" (X.X
–
number of software version);