When Supplying 24 V External Power To The Control Circuit - Mitsubishi Electric FR-CC2-N Series Instruction Manual

Do not connect the power cable to incorrect terminals. Doing so may damage the converter unit.
Connection diagram
MC
Remove the jumper
(a) Remove the upper screws.
(b) Remove the lower screws.
(c) Pull the jumper toward you to remove.
(d) Connect the separate power supply cable for the control circuit to the upper terminals (R1/L11, S1/L21).
NOTE
• When using separate power supplies, always remove the jumpers connected to terminals R1/L11 and S1/L21. Failure to do
so may lead to damage of the converter unit.
• When the control circuit power is supplied from other than the input line of the MC, the voltage of the separate power supply
must be the same as that of the main control circuit.
• When using a separate power supply connected to terminals R1/L11 and S1/L21, the required power capacity is 80 VA.
• If the main circuit power is switched OFF (for 0.1 second or more) then ON again, the converter unit is reset and a fault output
will not be held.
2.6.6 When supplying 24 V external power to the control
circuit
Connect the 24 V external power supply across terminals +24 and SD to turn the I/O terminal ON/OFF operation, keep the
operation panel ON, and carry out communication during communication operation even at power-OFF state of converter unit's
main circuit power supply. When the main circuit power supply is turned ON, the power supply is switched from the 24 V
external power supply to the main circuit power supply.
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2. INSTALLATION AND WIRING
2.6 Control circuit
Converter unit
R/L1
S/L2
T/L3
R1/L11
S1/L21
(c)
Power supply terminal block
for the control circuit
R1/L11
(a)
(b)
(d)
Power supply
terminal block
for the control
circuit
S1/L21