Connection Of The Power Regeneration Converter (Mt-Rc) - Mitsubishi Electric FR-A800 Series Instruction Manual

*6 Use Pr.178 to Pr.189 (Input terminal function selection) to assign the terminals used for the X10 signal. (Refer to
*7 Be sure to connect the power supply and terminals R/L11, S/L21, and T/MC1. Operating the inverter without connecting them will damage the
power regeneration common converter.
*8 Always connect terminal RDY on the FR-HC2 to a terminal where the X10 signal or MRS signal is assigned on the inverter. Always connect
terminal SE on the FR-HC2 to terminal SD on the inverter. Not connecting these terminals may damage the FR-CV.
NOTE
• The voltage phases of terminals R/L11, S/L21, and T/MC1 and the voltage phases of terminals R2/L1, S2/L2, and T2/L3 must
be matched.
• Use the sink logic when the FR-CV is connected. It cannot be connected when the source logic is selected.
• Do not connect a DC reactor (FR-HEL) to the inverter when the FR-CV is connected.
2.10.8 Connection of the power regeneration converter
(MT-RC)
When connecting the power regeneration converter (MT-RC), perform wiring securely as follows. Incorrect connection will
damage the power regeneration converter and the inverter. The MT-RC is compatible with FR-A840-02160(75K) or higher.
After making sure that the wiring is correct and secure, set "1" in Pr.30 Regenerative function selection and "0" in Pr.70
Special regenerative brake duty.
Three-phase
AC power
supply
*1 Terminal P3 is equipped in the FR-A820-00770(15K) to 01250(22K), and FR-A840-00470(18.5K) to 01800(55K). Terminal P3 has the same
function as terminal P\+ on the inverter.
NOTE
• When using the inverter with the MT-RC, install a magnetic contactor (MC) at the input side of the inverter so that power is
supplied to the inverter after one second or more has elapsed after powering ON the MT-RC. When power is supplied to the
inverter prior to the MT-RC, the inverter and the MT-RC may be damaged or the MCCB may be shut off or damaged.
• When connecting the power coordination reactor and others, refer to Instruction Manual of the MT-RC for precautions.
108
2. INSTALLATION AND WIRING
2.10 Connection of stand-alone option units
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MCCB
MC1
Inverter input power supply (MC2)
MT-RC power supply (MC1)
search engine
Inverter
MC2
R/L1
S/L2
T/L3
R1/L11
S1/L21
DCL
P1
P1
P/+
*1
(P3)
N/-
P
MT-RCL
P
N
R
R2
R2
S
S2
S2
T T2
T2
R
S
T
R1
S1
MT-RC
ON
1s or more
page 521.)
U
M
V
W
Reset signal
RES
STF
SD
C
B
Alarm signal
A
RDY
Ready signal
SE
ON