Wiring Control Circuit Terminals
2-21
Control Circuit Terminal Functions
The functions of the control circuit terminals are shown in Table 2.11. Use the appropriate terminals for the
correct purposes.
Table 2.11 Control Circuit Terminals with default settings
Type
No. Signal Name Function Signal Level
Digital
input
signals
S1 Forward run/stop command Forward run when ON; stopped when OFF.
24 VDC, 8 mA
Photocoupler isolation
S2 Reverse run/stop command Reverse run when ON; stopped when OFF.
S3
External fault input
*1
Fault when ON.
Functions are
selected by set-
ting H1-01 to
H1-05.
S4
Fault reset
*
Reset when ON
S5
Multi-step speed reference
1
*1
(Master/auxiliary switch)
Auxiliary frequency ref-
erence when ON.
S6
Multi-step speed reference
2
*1
Multi-step setting 2 when
ON.
S7
Jog frequency reference
*1
Jog frequency when ON.
SC Digital input common – –
SN Digital Input Neutral – –
SP Digital Input Power Supply +24VDC power supply for digital inputs
24 VDC, 250 mA max.
*2
Analog
input
signals
+V 15 V power output 15 V power supply for analog references
15 V
(Max. current: 20 mA)
A1 Frequency reference 0 to +10 V/100% 0 to +10 V(20 kΩ)
A2 Multi-function analog input
4 to 20 mA/100%
0 V to +10 V/100%
0 to 20 mA/100%
Function is
selected by set-
ting H3-09.
4 to 20 mA(250Ω)
0 V to +10 V(20kΩ)
0 to 20 mA (250Ω)
AC Analog reference common – –
E(G)
Shield wire, optional ground
line connection point
––
Se-
quence
output
signals
M1
Running signal
(1NO contact)
Operating when ON.
Multi-function
contact outputs
Dry contacts
Contact capacity:
1 A max. at 250 VAC
1 A max. at 30 VDC
*3
M2
M3
Zero speed
Zero level (b2-01) or
below when ON
M4
MA
Fault output signal
Fault when CLOSED across MA and MC
Fault when OPEN across MB and MC
–MB
MC
Analog
output
signals
FM
Multi-function analog output
(frequency output)
0 to +10 V/100% fre-
quency
Multi-function
analog output 1
0 to +10 V max. ±5%
2 mA max.
AC Analog common –
AM
Multi-function analog output
(current monitor)
5 V/Inverter's rated cur-
rent
Multi-function
analog output 2
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