Pixsys DRR460 Series, User Manual, Page: 19 / 72

User manual - DRR460 - 19
Modbus
address
Descrizione
Read
Write
Reset
value
1303 Latch on virtual zero calibration R/W 0
1400
Serial process reset. Write 1 to disable the serial process.
(process = AI1)
R/W 0
1401 Word serial process. AI1 is not considered R/W 0
1500 Process (if temperature, with tenth) RO ?
1501 CT instantaneous current (ampere with tenth) RO 0
1502 Current CT ON (ampere with tenth) RO 0
1503 Current CT OFF (ampere with tenth) RO 0
1504 Key status (0=rilasciato, 1=premuto) RO 0
1505 Dip 1 value RO 0
1506 Dip 2 value RO 0
1507
Digital output status (0=off, 1=on)
Bit 0 = OUT1
Bit 1 = OUT2
R/W 0
1508 Analogue output value R/W 0
2001 Parameter 1 R/W EEPROM
2002 Parameter 2 R/W EEPROM
... Parameter ... R/W EEPROM
2143 Parameter 143 R/W EEPROM
9 Regulation control
DRR460 integrates different types of control for the regulation of the command output, selecting
parameter 52
o.cL.t.
as follows:
9.a
0 Time control
For this type of control it is suggested to use a “zero-crossing” SSR.
Activation and deactivation of the output is related to the time selected on parameter 40
c.t.
. Ex.
selecting a time of 10 s and supposing a 30% percentage, the output will remain active for 3 s and
inactive for 7 s.
9.b
1 and 3 Burst fire control
For this type of control it is necessary to use a “Non zero-crossing” SSR.
The “Burst-fire” control (1 cycle) is a duty cycle mode which consists of supplying a series of complete
mains voltage cycles to the load.
t
Load voltage
TF
0
TM
TNF
t
TF
0
TM
TNF
t
TF
0
TM
TNF
50% power TF = TNF
25% power TNF = 3 TF
0
75% power TF = 3 TNF
At 50% power, the modulation time is 40ms:
• 1 firing cycle (20ms at 50Hz)
• 1 firing cycle (20ms at 50Hz)
For a setpoint less than 50%:
• The firing time remains constant (1 cycle)
• The non-firing and modulation time increases
For a setpoint greater than 50%:
• The non-firing time remains constant (1 cycle)
• The firing and modulation time increases.