~ 12 ~
NOVATEK-ELECTRO
PEF-
321АВР
Table 7 (continued)
Failure in phase sequence
41:6
41:7
Phase breakage
41:8
41:9
Phase sticking
41:10
41:11
Failure of generator start
---
41:13
Failure in generator stoppage
---
41:15
42:0
Failure in automatic re-closure ratio
42:1
42:2
Failure in frequency
42:3
42:4
Voltage goes beyond the lower limit set by the User
42:5
42:6
Voltage goes beyond the higher limit set by the User
42:7
42:8
If a failure occurs at
input 1
, then the LED
«
» of input 1 will light up
,
if at
input 2
, then the LED
«
»
of
input 2 will light up.
6.2.2.5
External indication
The 321
АВР has 4 outputs to the terminal for connecting an external indication. Table 8 shows the
connections for external displays.
Table 8
- External Indication
Terminals
Type of
thermocouple
Name
Explanation of operation of the indicator
connected to respective terminals in series
with the source of power supply
Max. duration of
allowable AC/DC
voltage, V
12
– 13
Triacoutput
photocoupler
The state of
voltage at input
1
Lighting up
– voltage is within the norm;
Is flashing
– voltage is beyond the limits set
by the User;
Is not lighting
– no voltage
400 AC
14
– 15
Triacoutput
photocoupler
The state of
voltage at input
2
Lighting up
– voltage is within the norm;
Is flashing
– voltage is beyond the limits set
by the User;
Is not lighting
– no voltage
400 AC
16
– 17
Optotransistor
Availability of
the battery
Is not lighting
– the battery is disconnected;
Is lighting
– the battery is connected
280 AC /
400 DC
18
– 19
Optotransistor
The state of
generator
operation
Duplicates LED "
"
6.2.3
MODBUS parameters
The parameters available for reading upon the MODBUS protocol are shown in Table 9. The parameter sets
available upon the MODBUS protocol are shown in Table 10.
Table 9
- Parameters accessible for reading upon MODBUS protocol
Parameter
Address
Type of the device Code, defining the device of MODBUS for a manufacturer (25 321
АВР)
0
Firmware version
Firmware version for the built-in software (firmware version, for example
«2.3»,
is transmitted upon MODBUS as
«0x0203»)
1
Time account for switching over to another input
26
Time account for return to the foreground input
27
Time account for waiting for generator start
29
Time account for generator idle work before switching off
30
The state of input 1 relay
1
– normally-open contacts are closed;
0
– normally-open contacts are open
43:0
The state of input 2 relay
43:1
The state of the generator relay
43:2
The state of the battery relay
43:3
Availability of voltage at the load, phase 1
1
– voltage is present at the load;
0
– no voltage at the load
44:1
Availability of voltage at the load, phase 2
44:2
Availability of voltage at the load, phase 3
44:3
Table 10
– Parameters available upon the MODBUS protocol
Access
Addresses
Reading and writing
100
– 250
Only reading
0
– 99
