Sumitomo SF-320 - Explanation of Functions; Terminal Command Functions; Output Terminal and Monitor Signal Selection

10
Explanation of Functions
Explanation of Functions
Common
Output current
(%)
Time (sec)
50 100 150 200
60
Output frequency
(Hz)
Output current (%)
5 20 60 120
60
80
100
〈Electronic thermal level〉
〈Electronic thermal characteristics〉
Constant torque characteristics
Reduced torque characteristics
50 120
Overload restriction
Overload restriction peration mode selection
Overload restriction level setting
Overload restriction deceleration rate
• The level at which the overload restriction function is
activated, details of operation, and deceleration rate for
overload restriction can be set.
• * When this function is used for a load with a large moment
of inertia, the overload restriction level will extend the
deceleration time.
Software lock (data change prevention)
Lock selection
• When set data should not be changed, use this software
lock function.
• The software lock function is enabled by code setting or by
a control terminal.
No-load reactive current setting
Reactive current setting
• The no-load (reactive) current of the motor is set.
Note: is only for SF-320.
Analog meter adjustment
Analog meter adjustment
•
The scale of an analog frequency counter and ammeter
connected to the inverter can be adjusted.
Set value
00*
01*
02
03
Function
[When software lock terminal is ON] Change of any function
other than software lock is impossible.
[When software lock terminal is ON] Change of any function
other than software lock and frequency setting is impossible.
[Whether software lock terminal is ON or OFF] Change of
any function other than software lock is impossible.
[Whether software lock terminal is ON or OFF] Change of any function
other than software lock and frequency setting is impossible.
* When the control terminal is used
Starting frequency adjustment
Starting frequency adjustment
• The starting frequency output from the inverter can be
adjusted. Increase the starting frequency to increase the
starting torque. (Higher values will reduce the soft start and
increase the inrush current.)
Low High
Large Small
Small Large
Carrier frequency setting
Carrier frequency setting
• The carrier frequency can be changed. When the carrier
frequency is lowered, the motor noise increases, but
generated high-frequency noise and leakage current can be
reduced.
(The carrier frequency is held at 1 kHz automatically when
DC braking is working.)
(Note) The table is not quantitative.
Data/trip history initialization
Initialization mode selection
Initialization data selection
• Data on all the functions can be returned to the initial set
values. In addition, the trip history can be cleared.
Setting the frequency conversion scale display func-
tion
Frequency conversion value setting
• The monitor permits monitoring of the frequency after
scale conversion. The line speed and speed of rotation can
be displayed.
Displayed value = Output frequency ×
(Example) When the line speed is 6 m/min at 60 Hz
0.1 is set to .
〈Display〉
At 20 Hz: (2 m/min)
At 40 Hz: (4 m/min)
Carrier frequency
Motor noise
Leak current
Output voltage
f
100%
b82
V
Output frequency
Starting frequency
Adjustment range
0.5-9.9Hz
(Note) Contact the technical staff at our factory when the electronic
thermal level is to be set below 50%.