Mitsubishi Electric FR-E8TR Instruction Manual page 15

Rs-485 2 port terminal block
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 Frequency setting
Terminal
Common
Terminal name
symbol
Power supply for a
10
SG
frequency setting
potentiometer
Frequency setting
2
SG
(voltage) /
common terminal
Frequency setting
4
SG
(current)
*1
For details of Pr.267, refer to the FR-E800 Instruction Manual (Function).
Terminal function description
Used as the power supply for an external frequency
setting (speed setting) potentiometer.
Inputting 0 to 5 VDC (or 0 to 10 VDC) provides the
maximum output frequency at 5 V (or 10 V) and makes
input and output proportional. Use Pr.73 to switch
between input 0 to 5 VDC (initial setting) and 0 to 10
VDC. This terminal can be used for voltage input only.
When a shielded wire is passed across terminal SG
during the RS-485 communication, terminal 2 can be
used as terminal SG by setting the terminal 2/SG switch
(refer to
page
9) to the SG position. In that setting, 0 V is
input to terminal 2.
Inputting 4 to 20 mADC (or 0 to 5 V, 0 to 10 V) provides
the maximum output frequency at 20 mA and makes input
and output proportional. This input signal is valid only
when the AU signal is ON (terminal 2 input is invalid). Use
*1
Pr.267
to switch among input 4 to 20 mA (initial setting),
0 to 5 VDC, and 0 to 10 VDC. Set the voltage/current
input switch to the "V" position to select voltage input (0 to
5 V or 0 to 10 V).
Rated specification
5 ±0.5 VDC
Permissible load current: 10 mA
Input resistance: 10 to 11 kΩ
Maximum permissible voltage:
20 VDC
When selecting SG:
Common terminal
Terminal 2
(Initial status)
SG
2
For current input,
Input resistance 245 ±5 Ω
Permissible maximum current:
30 mA
For voltage input,
Input resistance: 10 to 11 kΩ
Maximum permissible voltage:
20 VDC
Current input
(Initial status)
I
V
PRE-OPERATION INSTRUCTIONS
1
Terminal SG
SG
2
Voltage input
I
4
4
V
15

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