2-21
Chapter 2
Installation and Wiring
■
Analog input/output
(Wiring example)
■
External thermistor
(Wiring example)
•
When variable resistor is connected on H-Ai1-L terminal, voltage
input is given to inverter, Sw1 for analog input 1 (Ai1) is to be set
on "voltage" side therefore.
•
If a frequency meter connected in left example is current type (4
to 20mA), set SW3 for analog output 1 (Ao1) as current output.
•
Twist the cables connected from a thermistor to the TH terminal
only between TH+ and TH-, and separate the twisted cables from
other cables.
•
Since very low current flows through the cables connected to the
thermistor, separate the cables from those (power line cables)
connected to the main circuit.
•
The length of the cables connected to the thermistor must be 20 m
or less.
Terminal
label
Terminal name
Description
Electric characteristics
V
o
lt
a
g
e
/c
u
rr
e
n
t
sw
it
ch
a
b
le
a
n
a
lo
g
i
n
p
u
t/
o
u
tp
u
t
te
rm
in
a
l
P
o
w
e
r
su
p
p
ly
L
COM for analog
power supply
COM terminals for analog input terminals (Ai1,Ai2,Ai3) and
analog output terminals (Ao1,Ao2). Two L terminals are
available.
H
Speed setting
power supply
DC10V power supply. Used for voltage input with analog
input terminals (Ai1,Ai2,Ai3) using a variable resister.
Max. allowable input current 20mA
A
n
a
lo
g
i
n
p
u
t
Ai1
Analog input
terminal 1
(Voltage/current
selector SW1)
Either Ai1 or Ai2 can be used by switching the selector
switch to DC0 to 10V voltage input or 0- to 20
ｍ
A current
input. Used as speed input and feedback input.
For voltage input:
• Input impedance Approx.10kΩ
•
Allowable input voltage DC-0.3V to
12V
For current input:
• Input impedance Approx.100Ω
•
Max. allowable input current 24mA
Ai2
Analog input
terminal 2
(Voltage/current
selector SW2)
Ai3
Analog input
terminal 3
DC-10 to 10V voltage input is available.
Used as speed input and feedback input.
Voltage input only:
• Input impedance Approx.10kΩ
•
Allowable voltage input DC-12V to
12V
A
n
a
lo
g
o
u
tp
u
t
Ao1
Analog output
terminal 1
(Voltage/current
selector SW3)
Either Ao1 or Ao2 can be used as an output for inverter
monitoring data by switching the selector switch to DC0 to
10V voltage output or 0 to 20
ｍ
A current output.
For voltage output:
• Max. allowable output current 2mA
•
Output voltage accuracy ±10%
(Ambient temperature: 25±10
degrees C)
For current input:
•
Allowable load impedance
250Ω or less
•
Output current accuracy ±20%
(Ambient temperature: 25±10
degrees C)
Ao2
Analog output
terminal 2
(Voltage/current
selector SW4)
Terminal
label
Terminal
name
Description
Electric characteristics
T
h
e
rm
is
to
r
te
rm
in
a
l
A
n
a
lo
g
i
n
p
u
t
TH+
External
thermistor
input
Connect to an external thermistor to make the inverter trip if an
abnormal temperature is detected.
Connect the thermistor to TH+ and TH-. The impedance to detect
temperature errors can be adjusted within the range 0Ω to
9,999Ω.
[Recommended thermistor properties]
Allowable rated power: 100 mW or more
Impedance at temperature error: 3kΩ
DC0 to 5V
[Input circuit]
TH-
Common
terminal for
external
thermistor
input
TH-
TH+
External thermistor
terminals
Thermistor
DC5V
1k
Ω
2k
Ω
TH-
TH
+
Thermistor
Control circuit terminal
Ao2
Ao1
Analog input/output
H
Ai1
Ai2
Ai3
L
L
Potentiometer for frequency source
(0.5kΩ to 2kΩ)
* 1kΩ, 1W or more recommended
Frequency
meter
SW4 SW3 SW2 SW1
Control circuit terminal
Summary of Contents for P1-00041HFEF
Page 6: ...0 5 Contents Contents Memo ...
Page 42: ...2 26 Chapter 2 Installation and Wiring Memo ...
Page 129: ...Index Index 3 memo ...
Page 130: ...Index Index 4 memo ...
