Fuji Electric FRENIC MEGA G2 Series - Page 70

2.2 Wiring
2-32
Digital input terminals
Table 2.2-10 Description of control circuit terminal functions
Classification
Terminal
symbol
Terminal
command
Function description
Digital input
[X1]
Digital
input 1
(1) Various signals (coast to stop command, external alarm, multi-speed selection, etc.) can
be set with function codes E01 to E09, E98, E99. Refer to Chapter 5 "FUNCTION
CODES" for details.
(2) The input mode and SINK/SOURCE can be switched using SW1. (See 2.2.7 Switching
switches.)
(3) The operating mode between each digital input terminal and terminal [CM] can be
switched to "ON when shorted (active ON)" or "OFF when shorted (active OFF)".
(4) Digital input terminals [X6] and [X7] can be set up as a pulse train input terminal by
changing the function code
Maximum wire length: 20 m
Maximum input pulse
30 kHz: When connected to open collector output pulse generator
(A pull-up resistor and pull-down resistor are required. Refer to ■When inputting pulse
train with terminals [X6] and [X7].
100 kHz: When connected to complementary output pulse generator
Refer to Chapter 5 "FUNCTION CODES" for details on function code settings.
<Digital input circuit specifications>
[X2]
Digital
input 2
[X3]
Digital
input 3
[X4]
Digital
input 4
[X5]
Digital
input 5
[X6]
Digital
input 6
[X7]
Digital
input 7
[X8]
Digital
input 8
Fig. 2.2-17 Digital input circuit
Table 2.2-11
Item
Min.
Max.
Operating
voltage
(SINK)
ON level
0 V
2 V
OFF level
20 V
27 V
Operating
voltage
(SOURC
E)
ON level
20 V
27 V
OFF level
0 V
2 V
Operating current when
ON
(when input voltage 0 V)
(for [X6] [X7] input
terminal)
2.5 mA
5 mA
(3 mA)
(16 mA)
Permissible leakage
current when OFF
-
0.5 mA
[X9]
Digital
input 9
[FWD]
Forward
rotation
run/stop
command input
[REV]
Reverse
rotation
run/stop
command input
[EN1]
[EN2]
Enable
input
(1) When terminals [EN1]-[PLC] or terminals [EN2]-[PLC] are OFF, the inverter output
transistors stop switching (safe torque off: STO).
Be sure to operate terminals [EN1] and [EN2] simultaneously; otherwise an ecf alarm is
issued and the operation of the inverter will be disabled.
(2) The input mode for terminals [EN1] and [EN2] is fixed to source. The mode cannot be
switched to sink.
(3) This function can be enabled and disabled with SW7. If using this function, set the
respective SW7 switches to the OFF side.
<Terminal [EN1], [EN2] circuit specifications>
PLC
フォトカプラ
CM
<制御回路部>
5.4kΩ
DC+24V
EN1
5.4kΩ
EN2
SW7
OFF
Item
Min.
Max.
Operating
voltage
(SOURCE)
ON level
20 V
27 V
OFF level
0 V
2 V
Operating current when ON
(when input voltage 27 V)
2.5 mA
10 mA
Permissible leakage
current when OFF
−
0.5 mA
[X6, X7])
Photo coupler
<Control circuit block>