Chapter 3: Wiring
Firmware – S1043
Revision: 2 (9/98)
40
© Saftronics, Inc.
3.5.2
Control Circuit Terminal Functions
The functions of the control circuit terminals are shown in
Table 3.9
. Use the appropriate terminals for the correct
purposes.
Table 3.9
Control Circuit Terminals
Type
No.
Signal Name
Function
Signal Level
1
Forward run/stop command
Forward run when CLOSED; stopped when OPEN.
2
Reverse run/stop command
Reverse run when CLOSED; stopped when OPEN.
3
External fault input
Fault when CLOSED;
normal when OPEN
4
Fault Reset
Reset when CLOSED.
5
Multi-step speed reference 1
(Master/auxiliary switch)
Auxiliary frequency
reference when
CLOSED.
6
Multi-step speed reference 2
Multi-step Setting 2
when CLOSED.
7
Jog frequency reference
Jog run when CLOSED.
8
External baseblock
Inverter output stopped
when CLOSED.
Multi-function contact inputs
(Command signals can be
selected by Setting H1-01 to
H1-06.)
Sequence
input
signals
11
Sequence input common
−
24 VDC, 8 mA Photocoupler
isolation
15
15 V power output
15 V power supply for analog reference
15 V
(Maximum current: 20 mA)
33
−
15 V power output
−
15 V power supply for analog references
−
15 V
(Maximum current: 20 mA)
−
10 to 10 V/
−
100% to 100%
0 to 10 V/100%
−
10 to 10 V (20 k
Ω
),
0 to 10 V (20 k
Ω
)
13
Master speed frequence
reference
4 to 20 mA/100%,
−
10 to
+
10 V/
−
100% to 100%
0 to
+
10 V/100%
4 to 20 mA (250
Ω
)
16
Multi-function analog input
−
10 to 10 V/
−
100% to
100%
0 to 10 V/100%
Auxiliary analog input (H3-05)
−
10 to 10 V (20 k
Ω
),
0 to 10 V (20 k
Ω
)
17
Control common
−
−
Analog
input
signals
12
Shield wire, optional ground
line connection point
−
−
9
10
Running signal (1 NO contact)
Operating when CLOSED
25
Zero Speed detection
Zero level (b2-01) or below
when CLOSED
Dry contacts
Contact capacity:
1 A maximum at 250 VAC
1 A maximum at 30 VDC
26
Speed agree detection
Within
±
2 Hz of set
frequency when CLOSED
Multi-function outputs
27
Open-collector output
common
−
Open-collector output
50 mA maximum at 48 V*
18
19
Sequence
output
signals
20
Fault output signal (SPDT)
Fault when CLOSED across 18 and 20
Fault when OPEN across 19 and 20
Dry contacts
Contact capacity:
1 A maximum at 250 VAC
1 A maximum at 30 VDC
21
Frequency output
0 to 10 V/100% frequency
Multi-function analog
monitor 1
(H4-01, H4-02)
22
Common
−
Analog
output
signals
23
Current monitor
5 V/Inverter’s rated current
Multi-function analog
monitor 2
(H4-04m H4-05)
0 to
±
10 V maximum
±
5%
2 mA maximum
*
When driving an inductive load, such as a relay coil, always insert a flywheel diode as shown in
Figure 3.18.
Figure 3.18
Flywheel Diode Connection
