Operations And Monitoring - Hitachi L100-M Series Addendum Manual

Operations and Monitoring

This section covers new or modified intelligent terminal functions for L100-M Series
inverters, corresponding to Chapter 4, "Operations and Monitoring," in the L100 Inverter
Instruction Manual. The additional functions include Run key routing via [FW] or [RV]
terminals, three-wire operation, remote control up and down functions, and force opera-
tion from a digital operator (keypad).
Wiring Diagram Conventions
The input wiring diagrams in this section are examples only. Default and non-default
input terminal assignments are noted throughout; your particular assignments may be
different. Input switch wiring for –xMFU2 models will connect the switch common
(return) to +24VDC, as shown below (left). Input switch wiring for –xMFR2 models will
connect the switch common (return) to Logic GND terminal [L], as shown below (right).
Wiring for -MFU2 versions
L 5 4
Each wiring example in this section shows
both the –xMFU2 and –xMFR2 input wiring
in the same diagram, as shown to the right.
DO NOT connect terminal [P24] to [L]. Be
sure the return terminal used matches your
inverter type.
NOTE: The input wiring diagrams in the L100 instruction manual match the -MFU2
models. If your inverter is the -MFR2 type, be sure to wire the inputs as instructed in this
addendum.
Waveform Diagram Conventions
The input signal waveform diagrams in this section (and in the L100 manual, Chapter 4)
assume the intelligent inputs are active high type (corresponds to -MFU2 inverter type).
If your inverter is the -MFR2 type, you must invert the ON/OFF logic sense when
observing or interpreting the input waveforms.
-MFU2 input terminal
-MFR2 input terminal
RV FW
3 2 1 P24
common
(return)
1
ON
0
1
ON
0
L100-M Inverter
Wiring for -MFR2 versions
RV FW
L 5 4 3 2
common
(return)
RV FW
L 5 4 3 2 1 P24
for
-MFR2
models
OFF
OFF
21
1 P24
for
-MFU2
models
t