Mitsubishi Electric F700 Instruction Manual page 133

Frequency setting by analog input (terminal 1, 2, 4)
CAUTION
⋅ The terminal 1 (frequency setting auxiliary input) signal is added to the main speed setting signal of the terminal 2 or 4.
⋅ When an override is selected, the terminal 1 or 4 is used for the main speed setting and the terminal 2 for the override
signal (50% to 150% at 0 to 5V or 0 to 10V). (When the main speed of the terminal 1 or terminal 4 is not input,
compensation by the terminal 2 is made invalid.))
⋅ Use Pr. 125 (Pr. 126) (frequency setting gain) to change the maximum output frequency at input of the maximum output
frequency command voltage (current). At this time, the command voltage (current) need not be input.
Also, the acceleration/deceleration time, which is a slope up/down to the acceleration/deceleration reference frequency, is
not affected by the change in Pr. 73 setting.
⋅ When Pr. 22 Stall prevention operation level = "9999", the value of the terminal 1 is as set to the stall prevention operation level.
Forward
STF
rotation
PC
0 to 5VDC
10
Frequency
2
setting
5
Connection diagram using
terminal 2 (0 to 5VDC)
Forward STF
rotation
PC
0 to 10VDC
10E
Frequency
2
setting
5
Connection diagram
using terminal 2 (0 to 10VDC)
Forward
rotation
4 to 20mADC
Current
Frequency
input
setting
equipment
Connection diagram using
terminal 4 (4 to 20mADC)
60
Forward
rotation
Not reversible
-5
0
(-10)
Reverse
rotation
60
Compensation input characteristic
when STF is on
♦ Parameters referred to ♦
Pr.22 Stall prevention operation level
Pr.125 Terminal 2 frequency setting gain frequency, Pr. 126 Terminal 4 frequency setting gain frequency
Pr. 252, Pr. 253 Override bias/gain
126
(2) Perform operation by analog input selection.
Inverter
⋅ The frequency setting signal inputs 0 to 5VDC (or 0 to 10VDC) to
across the terminals 2-5. The 5V (10V) input is the maximum output
frequency. The maximum output frequency is reached when 5V
(10V) is input.
⋅ The power supply 5V (10V) can be input by either using the internal
power supply or preparing an external power supply. The internal
power supply outputs 5VDC across terminals 10-5, or 10V across
terminals 10E-5.
Terminal
Inverter
10
10E
⋅ When inputting 10VDC to the terminal 2, set any of "0, 2, 4, 10, 12,
14" in Pr. 73. (The initial value is 0 to 5V)
⋅ Setting "1 (0 to 5VDC)" or "2 (0 to 10VDC)" in Pr. 267 changes the
terminal 4 to the voltage input specification. When the AU signal
turns on, the terminal 4 input becomes valid.
REMARKS
The wiring length of the terminal 10, 2, 5 should be 30m maximum.
(3) Perform operation by analog input current.
Inverter
⋅ When the pressure or temperature is controlled constant by a fan,
STF
pump, etc., automatic operation can be performed by inputting the
AU
output signal 4 to 20mA of the adjuster to across the terminals 4-5.
PC
⋅ The AU signal must be turned on to use the terminal 4.
⋅ Setting any of "6, 7, 16, 17" in Pr. 73 changes the terminal 2 to the
4
current input specification. At this time, the AU signal need not be
5
turned on.
(4) Perform forward/reverse rotation by analog input
(polarity reversible operation)
⋅ Setting any of "10 to 17" in Pr. 73 enables polarity reversible
operation.
+5
⋅ Providing ± input (0 to ±5V or 0 to ±10V) to the terminal 1 enables
(+10)
forward/reverse rotation operation according to the polarity.
terminal 1 input (V)
Reversible
Refer to page 56
Refer to page 127
Inverter Built-in Power Frequency Setting
Supply Voltage
DC5V
10VDC
Pr. 73 (terminal 2
Resolution input voltage)
0.024/50Hz 0 to 5VDC input
0.012/50Hz 0 to 10VDC input
Refer to page 129