Mitsubishi Electric FR-CC2-N Series, Инструкция по эксплуатации

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39
2. INSTALLATION AND WIRING
2.6 Control circuit
1
2
3
4
5
6
7
8
9
10
2.6
Control circuit
2.6.1 Details on the control circuit terminals
 Input signal
*1 Terminal functions can be selected using Pr.178, Pr.187, or Pr.189 (Input terminal function selection) . (Refer to page 95 .)
Type
Terminal
symbol
Terminal name Terminal function description Rated specification
Contact input
RES
*1
Reset
Use this signal to reset a fault output provided when a protective function
is activated. Turn ON the RES signal for 0.1 second or longer, then turn
it OFF.
In the initial setting, reset is always enabled. Setting
Pr.75 makes reset
possible only after the occurrence of a converter unit fault. The converter
unit will restart about 1 second after reset.
Input resistance: 4.7
k
Ω ,
voltage when contacts
are open: 21 to 27
VDC,
current when contacts
are short-circuited: 4 to
6 mADC
OH
*1
External thermal relay
input
The External thermal relay input (OH) signal is used when using the
external thermal relay or the thermal protector built into the motor to
protect the motor from overheating.
When the thermal relay is activated, the inverter output is shut off by the
external thermal relay operation (E.OHT).
RDI
*1
Contact input
No function is assigned in the initial setting.
Use
Pr.178 to assign a function to the terminal.
SD
Contact input
common (sink)
Common terminal for the contact input terminal (sink logic).
—
External transistor
common (source)
Connect this terminal to the power supply common terminal of a
transistor output (open collector output) device, such as a
programmable controller, in the source logic to avoid malfunction by
undesirable current.
24 VDC power supply
common
Common terminal for the 24 VDC power supply (terminal PC, terminal
+24).
Isolated from terminals 5 and SE.
PC
External transistor
common (sink)
Connect this terminal to the power supply common terminal of a
transistor output (open collector output) device, such as a
programmable controller, in the sink logic to avoid malfunction by
undesirable current.
Power supply voltage
range: 19.2 to 28.8
VDC, permissible load
current: 100 mA
Contact input
common (source)
Common terminal for contact input terminal (source logic).
24 VDC power supply Can be used as a 24 VDC 0.1 A power supply.
Power
supp
ly in
put
+24
24 V external power
supply input
For connecting a 24 V external power supply.
If a 24 V external power supply is connected, power is supplied to the
control circuit while the main power circuit is OFF. Input voltage: 23 to
25.5 VDC, input
current: 1.4 A or less