Changing The Control Logic - Mitsubishi Electric FR-E700EX Instruction Manual

2.3.2

Changing the control logic

The input signals are set to sink logic (SINK) when shipped from the factory.
To change the control logic, the jumper connector above the control terminal must be moved to the other position.
 To change to source logic, change the jumper connector in the sink logic (SINK) position to source logic (SOURCE) position
using tweezers, a pair of long-nose pliers etc. Change the jumper connector position before switching power ON.
NOTE
 Fully make sure that the front cover has been reinstalled securely.
 The capacity plate is placed on the front cover and the rating plate is on the drive unit. Since these plates have the
same serial numbers, always reinstall the removed cover onto the original drive unit.
 The sink-source logic change-over jumper connector must be fitted in only one of those positions. If it is fitted in both
positions at the same time, the drive unit may be damaged.
(1) Sink logic type and source logic type
 In sink logic, a signal switches ON when a current flows from the corresponding signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output signals.
 In source logic, a signal switches ON when a current flows into the corresponding signal input terminal.
Terminal PC is common to the contact input signals. Terminal SE is common to the open collector output signals.
Current flow concerning the input/output signal when sink logic is
selected
Sink logic
Current
STF
R
STR
R
SD
Drive unit
RUN
SE
24VDC
Current flow
Current flow concerning the input/output signal when source logic is
Sink
connector
DC input (sink type)
<Example: QX40>
TB1
R
R
TB17
Control circuit specifications
selected
Source logic
PC
Current
STF
R
STR
R
Drive unit
RUN
TB1
TB18
SE
24VDC
Current flow
Source
connector
DC input (source type)
<Example: QX80>
R
R
21
2