Control Logic (Sink/Source) Change - Mitsubishi Electric 800 Series Hardware Instruction Manual

Terminal
Type Terminal name
symbol
24 V external power
+24
supply input
*1 Terminal functions can be selected using Pr.178, Pr.187, or Pr.189 (Output terminal function selection).
 Output signal
Terminal
Type Terminal name
symbol
A1,
Relay output 1 (fault
B1,
output)
*1
C1
88R,
For manufacturer setting. Do not use.
88S
Inverter operation
*1
RDA
enable (NO contact)
Inverter operation
*1
RDB
enable (NC contact)
*1
Inverter reset
RSO
Instantaneous power
*1
IPF
failure
*1
Cooling fan fault
FAN
Open collector output
SE
common
*1 Terminal functions can be selected using Pr.190 to Pr.195 (Output terminal function selection).
CAUTION
• Do not use the empty terminals (NC) of the control circuit. Doing so may lead to damage of the converter unit and the
inverter.
• Always connect the terminal RDA of the converter unit and the terminal MRS (X10) of the inverter, and the terminal SE
of the converter unit and the terminal SD (terminal PC in the source logic) of the inverter. Not doing so may lead to
damage of the converter unit.
2.6.3

Control logic (sink/source) change

Switch the control logic of input signals as necessary.
To change the control logic, change the jumper connector position on the control circuit board.
Connect the jumper connector to the connector pin of the desired control logic.
The control logic of input signals is initially set to the sink logic (SINK) for the type FM inverter.
The control logic of input signals is initially set to the source logic (SOURCE) for the type CA inverter.
Terminal function description
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.
Terminal function description
1 changeover contact output that indicates that the protective function of
the converter unit has been activated and the outputs are stopped.
Fault: discontinuity across B and C (continuity across A and C), Normal:
continuity across B and C (discontinuity across A and C)
Switched to LOW when the converter unit operation is ready.
Assign the signal to the terminal MRS (X10) of the inverter.
The inverter can be started when the RDA status is LOW.
Switched to LOW when a converter unit fault occurs or the converter is
reset.
The inverter can be started when the RDB status is HIGH.
Switched to LOW when the converter is reset (RES-ON).
Assign the signal to the terminal RES of the inverter.
The inverter is reset when it is connected with the RSO status LOW.
Switched to LOW when an instantaneous power failure is detected.
Switched to LOW when a cooling fan fault occurs.
Common terminal for terminals RDA, RDB, RSO, IPF, FAN
Connect this terminal to the terminal SD (sink logic) or PC (source logic)
of the inverter.
Rated specification
Input voltage: 23 to
25.5 VDC, input
current: 1.4 A or less
Rated specification
Contact capacity: 230
VAC 0.3 A
(power factor = 0.4),
30 VDC 0.3 A
Permissible load: 24
VDC (27 VDC at
maximum) 0.1 A
(The voltage drop is
2.8 V at maximum
while the signal is ON.)
The open collector
transistor is ON
(conductive) in LOW
state.
The transistor is OFF
(not conductive) in
HIGH state.
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2. INSTALLATION AND WIRING
2.6 Control circuit
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