Hitachi SH1 Series Basic Manual page 28

Chapter 2
2.10 Wiring of the control circuit
 An example for sink logic.
24V power
supply terminal
Sink or source logic
24V power
for input terminal is
supply terminal
switched by SW6.
24V power
Input terminals
supply terminal
24V power
supply terminal
24V power
Analog
supply terminal
input 1
Analog
24V power
(+)
input 2
supply terminal
(-)
Analog
(±)
(+)
input 3
(0)
24V power
(-)
supply terminal
(±)
(+)
(0)
Thermistor
(-)
24V power
(±)
(+)
supply terminal
(0)
(-)
(±)
(+)
24V power
(0)
(-)
supply terminal
(±)
(+)
(0)
(-)
24V power
Switch configuration
Label Switch Name
Ai1 Analog input 1
(SW1) switch
Ai2 Analog input 2
(SW2) switch
Ao1 Analog output 1
(SW3) switch
Ao2 Analog output 2
(SW4) switch
P.SEL Power supply
(SW5) input switch
Input terminal
SRC/SINK
Sink/Source
(SW6)
logic switching
P+
P-
1/RS
2/SCHG
3/JG
4/FRS
5/2CH
6/CF1
7/CF2
8/RV
9/FW
A/EXT
B/USP
COM
(SW1)
H
Ai1
20mA
Ai2
Ai3
L
TH+
TH-
Description
It changes the input specification of Analog input 1
(Ai1 terminal).
10V: Voltage input is available.
20mA: Current input is available.
It changes the input specification of Analog input 2
(Ai2 terminal).
10V: Voltage input is available.
20mA: Current input is available.
It changes the output specification of Analog output 1
(Ao1 terminal).
10V: Voltage output is applied.
20mA: Current output is applied.
It changes the output specification of Analog output 2
(Ao2 terminal).
10V: Voltage output is applied.
20mA: Current output is applied.
It changes the power source for input terminals.
IN: Internal power source.
EX: External power source.
(While setting EX, it requires an external power supply
between input terminals and COM terminal)
It changes the sink or source logic for input terminal.
Is enabled when SW5 is in IN position.
SINK: Switch to Sink logic.
SRC: Switch to Source logic.
P24
Control circuit terminal
section
(SW6)
P24
(SW5)
Sink
IN
Source
EX
CM1
(SW3)
10V
Voltage input
Current input
10V
Voltage input
Current input
20mA
(SW2)
DC24V
(SW4)
Ao2
20mA
10V

Make sure to power-off previous to change any
switches. Otherwise, may damage the inverter.
2-15
Installation and Wiring
AL0
AL1 Alarm relay
1C contact points
AL2
11/RUN
12/FA1
Output terminals
13/FA2
*Sink/source supported
14/IRDY
15/OL
CM2
10V
Ao1
20mA
10V
L
Ao2
L
20mA
L
L
(SW4)
P24
P24
Interface
L
24V power source terminal
L
FM
L
L
CM1
CM1
SP
L
L
SN
SP
SN
L
L
RP
L
L
L
L
(SW3) (SW2) (SW1) (SW5)
Ao1 Ai2 Ai1
20mA 20mA 20mA
10V
10V 10V
Control circuit terminal
RS485
(SW6)
P.SEL
SRC
EX
SINK
IN