2-8
Control circuit terminals
Table 2.5 Names, Symbols and Functions of the Control Circuit Terminals
Analog setting voltage input
External voltage input that commands the frequency externally.
(1) Input voltage range : 0 to ±10VDC / 0 to ±100%
(2) Hardware specifications
・Input impedance : 22 kΩ
・The maximum input voltage is ±15VDC, however, more than ±
15VDC is regarded as ±10VDC.
Analog setting voltage input
Analog setting current input
External voltage input that commands the frequency externally.
(1) Input voltage range : 0 to ±10VDC / 0 to ±100%
(2) hardware specifications
・Input impedance : 22 kΩ
・The maximum input voltage is ±15VDC, however, more than ±
15VDC is regarded as ±10VDC.
External current input that commands the frequency externally.
(1) Input voltage range : 4 to 20mADC / 0 to 100%
(2) hardware specifications
・Input impedance : 250 Ω
・The maximum input current is 30mADC, however, more than
20mADC is regarded as 20mADC.
PTC/NTC thermistor input.
Connection of a PTC (Positive Temperature Coefficient) or NTC
(Negative Temperature Coefficient) thermistor for motor protection.
Common terminal for analog input signals.
Digital input 1 to
Digital input 8
[X1]
[X2]
[X3]
[X4]
[X5]
[X6]
[X7]
[X8]
(1) Various signals such as "Coast to a stop," "Enable external
alarm trip," and "Select multi-frequency" can be assigned to
terminals [X1] to [X8], [FWD] and [REV] by setting function
codes E01 to E08, E98, and E99.
(2) Input mode, i.e. SINK and SOURCE, is changeable by using
the slide switch SW1.
(3) The logic value (1/0) for ON/OFF of the terminals [X1] to [X8],
[FWD], or [REV] can be switched. If the logic value for ON of
the terminal [X1] is "1" in the normal logic system, then OFF is
"1" in the negative logic system and vice versa.
(Digital input circuit specifications)
Operating voltage
(SOURCE)
Operating current at ON
(Input voltage is at 27 V)
Allowable leakage current at OFF
[X1] to [X8],
[FWD],[REV]