Mitsubishi Electric FR-A820-00046 Instruction Manual page 67

Installation and wiring
Terminal
symbol
PC
10E
10
2
4
1
5
10
2
+24
Tab. 2-13:
Set Pr. 73, Pr. 267, and the voltage/current input switch correctly, then input an analog signal in
accordance with the setting.
Applying a voltage with the voltage/current input switch ON (current input is selected) or a current
with the switch OFF (voltage input is selected) could cause component damage of the inverter or
analog circuits of output devices. (For the details, refer to page 5-389.)
The sink logic is initially set for the FM-type inverter.
The source logic is initially set for the CA-type inverter.
FR-A800
Terminal name Terminal function description
Connect this terminal to the power supply common
External transistor
terminal of a transistor output (open collector output)
device, such as a programmable controller, in the sink
common (sink)
logic to avoid malfunction by undesirable currents.
Contact input
Common terminal for contact input terminal (source
logic).
common (source)
24 V DC power
Can be used as 24 V DC 0.1 A power supply.
supply
When connecting the frequency setting
potentiometer at an initial status, connect it to the
Frequency setting
terminal 10.
power supply
Change the input specifications of the terminal 2
using Pr. 73 when connecting it to the terminal 10E.
Inputting 0 to 5 V DC (or 0 to 10 V, 0 to 20 mA) provides
the maximum output frequency at 5 V (10 V, 20 mA)
and makes input and output proportional. Use Pr. 73
Frequency setting
to switch among input 0 to 5 V DC (initial setting), 0 to
(voltage)
10 V DC, and 0 to 20 mA. Set the voltage/current input
switch in the ON position to select current input (0 to
20 mA).
Inputting 4 to 20 mA DC (or 0 to 5 V, 0 to 10 V)
provides the maximum output frequency at 20 mA
and makes input and output proportional. This input
signal is valid only when the AU signal is ON (terminal
2 input is invalid).
Frequency setting
Use Pr. 267 to switch among input 4 to 20 mA (initial
(current)
setting), 0 to 5 V DC, and 0 to 10 V DC. Set the voltage/
current input switch in the OFF position to select
voltage input (0 to 5 V/0 to 10 V).
Use Pr. 858 to switch terminal functions.
Inputting 0 to ±5 V DC or 0 to ±10 V DC adds this
signal to terminal 2 or 4 frequency setting signal. Use
Frequency setting
Pr. 73 to switch between input 0 to ± 5 V DC and 0 to
auxiliary
±10 V DC (initial setting). Use Pr. 868 to switch terminal
functions.
Common terminal for frequency setting signal
Frequency setting
(terminal 2, 1 or 4) and analog output terminal AM, CA.
common
Do not earth (ground).
For receiving PTC thermistor outputs.
When PTC thermistor is valid (Pr. 561 ≠ "9999"), the
PTC thermistor input
terminal 2 is not available for frequency setting.
For connecting 24 V external power supply.
24 V external power
If the 24 V external power supply is connected, power
supply input
is supplied to the control circuit while the main power
circuit is OFF.
Input signals (2)
Control circuit
Refer
Rated
to
specification
page
Power supply
voltage range
19.2 to 28.8 V DC 2-41
Permissible load
current 100 mA
10 V DC ±0.4 V
5-389
Permissible load
current 10 mA
5 V DC ±0.5 V
5-389
Permissible load
current 10 mA
When voltage is
input:
Input resistance
10 kΩ ±1 kΩ
5-389
Maximum
permissible voltage
20 V DC
When current is
input:
Input resistance
245 Ω ± 5 Ω
Permissible
maximum current
30 mA
5-389
Voltage/current
input switch
Switch 2
Switch 1
2 4
Input resistance
10 kΩ ±1 kΩ
Permissible 5-389
maximum voltage
±20 V DC
⎯
5-389
Applicable PTC
thermistor
specification
Overheat detection 5-292
resistance:
0.5 Ω to 30 kΩ
(Set by Pr. 561)
Input voltage
23 to 25.5 V DC
2-51
Input current
1.4 A or less
2 - 37