~ 24 ~
UBZ-304
NOVATEK-ELECTRO
–
to connect “RS232” connector
on the top panel of UBZ to RS-232 connector of PC using the cable KC-01;
–
to set the parameter of
“Communication” = “RS232”
.
N o tes
:
1) The unit is completed with the cable
КС
-01 when ordering. It is possible to manufacture the cable
independently by the user in accordance with Fig.5.12.
2) Programs developed by the user are allowed to be used for operation with UBZ.
5.1.5.6 In case of MODBUS usage, connect the communication lines to terminals
10 (GND), 11 (line B RS-485),
12
(line A RS-485)
of UBZ. Set the parameter of
“Communication” = “RS485”
.
5.1.5.7 Energize UBZ-304
ATTENTION
–
UBZ is supplied with set rated current of motor equal to zero. In this case, UBZ load relay
will not be enabled until the rated current of the motor. Motor rated current should be at least 3 A.
The enabling sequence for the load relay after energizing is determined by the values of the parameters
“AR time”
and
“Start>Power” (
it.5.3.1.1).
5.1.5.8 In the course of first starting in accordance with factory settings UBZ is in the mode of MNS in which it is
possible to set the following parameters:
–
CT rated current (parameter of
“CT nom i“);
–
motor rated current (parameter of
“Rated Inom”).
For normal operation of UBZ it is enough to set these parameters according to used CT and the motor.
5.1.5.9 Disable power of UBZ;
5.1.5.10 Connect the magnetic starter (hereinafter referred as MS) of the motor in accordance with Fig.5.2.
N o te
–
When load relay is enabled, the contacts
17-18
and
19-20
are closed; when relay is off, the contacts
16-
17
and
20-21
are closed
5.2 UBZ CONTROL
5.2.1 Modes of UBZ control and status
UBZ has five control modes:
–
Keyboard blocking
;
–
MNS
;
–
User level
;
–
Advanced user level
;
–
Remote control
.
All the modes of control have possibility to switch UBZ in the state:
–
Viewing the measured and calculated parameters
(Table 3.5);
–
Viewing the faults logbook
(it. 5.6).
5.2.2 Measured and calculated parameters view state
Measured and calculated parameters view state is the principal state. From all other modes UBZ returns to this
mode automatically (if after 30 s, no button is pressed).
In this mode the first three lines of the indicator displays a group of three functionally close settings (when adding
the values of temperature transmitters or analog inputs
–
a group of two parameters) (Fig.5.3).
N o te
–
If any temperature transmitter is disabled by software, then instead of the temperature (resistance) value
the indicator displays
“Off”.
The information displayed in the fourth line of the indicator depends on the state of UBZ.
If the load relay is enabled, then the fourth line of the display shows the current time (Fig.5.3).
If the load relay is off, then the fourth line of the indicator can display the following:
1) "AR=NOT Ir=0 15:30:17" in case if the motor start is impossible as the motor rated current is not set
(parameter of "Rated Inom" =0);
2) "AR=NOT 15:30:17" in case if the fault occurred after which ARS is disabled;
3) "AR=350 15:30:17" in case if the fault occurred and ARS is possible (ARS time account is on
–
350 s left to
ARS).
The display shows:
–
In line 1
–
current in phase L1
–
345 А;
–
In line 2
–
current in phase L2
–
350
А;
–
In line 3
–
current in phase L3
–
342
А;
–
In line 4
–
current time.
