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Induction motor & permanent magnetic motor control
with one inverter
(PM motor control : ordering production)
Details of enhancement (Comparison between SJ700-2 and SJ700D-3)
6
The SJ700D series
inverter can drive both
induction motors (IM)and
permanent magnetic
motors (PM).
IM
PM
PM
+Dedicated Controller
IM+Inverter
The Hitachi SJ700D-3 series
succeed the SJ700-2 series with the additional
and enhanced features
No. item Enhanced function, added parameters, etc. Remarks
1 Model SJ700D-004 to 550LFF3/LFEF3/LFUF3 SJ700D-007 to 1320HFF3/HFEF3/1500HFUF3
2
Added
function
Constant torque/
Variable torque
(CT/VT) selection
Constant torque / Variable
torque mode selectable
(b049)
Newly added parameter b049 to switch between
Constant torque mode and Variable torque mode.
In case of driving light load application, you can
choose one power size smaller inverter or one
frame size smaller inverter.
3
PM motor control
[ordering production]
Control mode (A044) PM motor control (06) is added to the selection in A044
PM motor control is only available in Variable torque
mode.
(note) The model supporting PM motor control is
ordering production.
4
PM motor control
parameters (H101~H134)
Parameters related to PM motor control are newly added
(same as WJ200 series)
5
Automatic return
to the initial display
Automatic return
to the initial display (b164)
Without operating for 10 minutes,
the display returns to the initial display automatically.
6
Data read and
write
Data Read/Write selection
(b166)
Selection of enabling or disabling data Read / Write from the
copy unit WOP for parameter setting protection and security
7 Inverter mode
Inverter mode monitor
(d060)
Displays currently selected inverter mode, IM motor
(induction motor) or PM motor mode.(IM mode or PM mode.)
8
Phase loss
protection
Phase loss output
protection (b141,b142)
The inverter detects motor output phase loss
9
Improvement
function
EzSQ
Improvement
Parallel processing of 5 tasks
10
EzSQ starting trigger terminal: changed from FW terminal to
PRG terminal which can be assigned any of input terminals.
11
Additional function
Always running mode is added to
selection of starting method for EzSQ.
12
Command to store changed data into EEPROM (eepwrt command)
13 Command to obtain clock data from WOP (rtcset command)
14
Part of EzSQ program variables (P129 (U29) to P131 (U31))
are automatically stored at power down (only when A017 is
other than 00)
15
WOP operator
[Option]
Full compatibility with the copy unit WOP(5 line display)
16 Real time clock function is available.
17
RS485
Communication speed
is improved.
2400/4800/9600/19.2k/38.4k/57.6k/76.8k/115.2k bps
18
Modbus RTU
Maximum data length is expanded.
03h (Read holding register) 10h (Write in holding resisters)
4 registers (8 byte) to 16 registers (32 byte)
19
Command to write into/read from multiple holding registers
is added (17h: Write/Read multiple holding registers)
Read and Write 16 registers (32 byte)
20 Broadcast communication function is added.
21 EEPROM storing mode is added.
22
Initializing
Initializing method Parameter setting (b180=01) triggers initialization Initialization method of SJ700-2 is also valid.
23 Initializing of EzSQ Parameter b084 range is expanded.
24 Initial value b037=00 (Full access)
25
Selection of
initial display
Selection of initial display is expanded
(all monitoring parameters, frequency command F001 (WOP monitor B)
26
Others
Warnings Warnings are organized. 47 warnings to 31 warnings
27
Run command in
case of warnings
At occurrence of warning, the inverter does not accept Run command.
2