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6.6.7 Operation procedure
6.6.7.1 Preparation
・ After installation, cabling, and switch setting have been done, check the following before powering on the
inverter:
(1) Cabling is correct.
(2) No wire dust or screw is left.
(3) Screws and terminals are not loose.
(4) Wire of the press-fit terminal does not contact other terminals.
Refer to Chapter 3 "Preparation and Test Run" for preparation.
(1) Power on
If any one of the inverter units within a multi-winding system is not powered on and operation is started, the
inter-inverter link error "
erb
" occurs. However, no alarm will be indicated until you start operation (FWD,
REV).
It is not required to power on the inverters simultaneously or power them on in a particular sequence.
Since no alarm will be indicated until you start operation (FWD, REV), you can power them on in an
arbitrary order.
(2) Setting before operation
Some function code settings need to be the same between the master and slave(s). If they differ, normal
operation is not possible.
Set the following function codes to the same values for the master and slave(s) before operation. While
they are set to the same values at factory, you need to check them again.
Table 6.6.7
Codes set to be same Function Remarks
F03 - F05, P, A all codes Motor parameters Be sure to set them correctly.
F14
Restart Mode after
Momentary Power Failure
(Mode selection)
Be sure to set them correctly.
F36 30Ry mode Required to design a failure sequence externally.
F60 Output Unit (HP/kW) Be sure to set them correctly.
F79
Motor Selection
(M1, M2, M3)
Be sure to set them correctly.
F80 Current rating switching Be sure to set them correctly.
o33 and o34
Multiplex system dedicated
codes
Be sure to set them correctly.
H30
Communications Link
Function
(Link operation)
Be sure to set them correctly.
H106 to H111
Light Alarm Object
Definition 1 to 6
Be sure to set them correctly.
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