Mitsubishi Electric FR-F720P-0.75K to 110K Instruction Manual page 50

(2) Connection with the MT-HC (75K or higher)
MCCB MC
Three-phase
AC power
supply
*1 Remove the jumper across terminals R and R1, S and S1 of the inverter, and connect the control circuit
power supply to the R1 and S1 terminals. Do not connect anything to the power input terminals R/L1, S/
L2, and T/L3. Incorrect connection will damage the inverter. (E.OPT (option fault) will occur. (Refer to page
318.)
*2 Do not insert the MCCB between terminals P/+ and N/- (P/+ and P/+, N/- and N/-). Opposite polarity of
terminals N, P will damage the inverter.
*3 Use Pr. 178 to Pr. 189 (input terminal function selection) to assign the terminals used for the X10 (X11) signal.
(Refer to page 133.) For communication where the start command is sent only once, e.g. RS-485
communication operation, use the X11 signal when making setting to hold the mode at occurrence of an
instantaneous power failure. (Refer to page 125.)
*4 Connect the power supply to terminals R1 and S1 of the MT-HC via an isolated transformer.
*5 Be sure to connect terminal RDY of the MT-HC to the X10 signal or MRS signal assigned terminal of the
inverter, and connect terminal SE of the MT-HC to terminal SD of the inverter. Without proper connecting,
MT-HC will be damaged.
CAUTION
⋅ The voltage phases of terminals R/L1, S/L2, T/L3 and terminals R4, S4, T4 must be matched.
⋅ Use sink logic (initial setting) when the MT-HC is connected. The MT-HC cannot be connected when source logic is
selected.
⋅ When connecting the inverter to the MT-HC, do not connect the DC reactor provided to the inverter.
♦ Parameters referred to ♦
Pr.30 Regenerative function selection
MT-HCL01 MT-HCB
R R2
R2 R3
S S2
S2 S3
T T2
T2 T3
88R
88S
R1 S1
Refer to page 125
Connection of stand-alone option units
MT-HCL02 MT-HC
R3 R4 R4
S3 S4 S4
T3 T4 T4
88R P
88S N
RDY
R
RSO
S
SE
T
R1 S1
MT-HCTR
Isolated transformer
Inverter
Motor
R/L1 U
M
*1
S/L2 V
T/L3 W
P/+
*2
N/
*5
X10
*3
RES
SD
*1
R1/ S1/
L11 L21
*4
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