Mitsubishi Electric FR-A700 EC, Instruction Manual

Page: 90 / 826

Connection of stand-alone option units Wiring
3 - 52
Connection with the MT-HC (02160 or more)
Remove the jumper across terminals R-R1, S-S1 of the inverter, and connect the control
circuit power supply to the R1 and S1 terminals. The power input terminals R/L1, S/L2, T/L3
must be open. Incorrect connection will damage the inverter. (E.OPT (option alarm) will
occur. (Refer to page 7-17.)
Do not insert the MCCB between terminals P/+-N/
−
(P/+-P/+, N/
−
-N/
−
). Opposite polarity of
terminals N, P will damage the inverter.
Use Pr. 178 to Pr. 189 "Input terminal function selection" to assign the terminals used for
the X10 (X11) signal. (Refer to section 6.14.1.)
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 section 6.13.2.)
Connect the power supply to terminals R1 and S1 of the MT-HC via an insulated transformer.
I001351E
Fig. 3-40: Connection with the MT-HC
NOTES
The voltage phases of terminals R/L1, S/L2, T/L3 and terminals R4, S4, T4 must be
matched.
Use sink logic when the MT-HC is connected. The MT-HC cannot be connected when
source logic (factory setting) is selected.
When connecting the inverter to the MT-HC, do not connect the DC reactor provided to the
inverter.
3-phase AC
power supply
Inverter
Insulated transformer