Changing The Control Logic - Mitsubishi Electric FR-E700 Series Instruction Manual

Control circuit specifications
3.4.4

Changing the control logic

FR-E700SC frequency inverters offer the possibility of choosing between two types of control logic.
Depending on the direction of the flowing current, one distinguishes between:
● 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
Fig. 3-16: Changing the control logic
The input signals are set to source logic (SOURCE) when shipped from the factory. To change the con-
trol logic, the jumper connector above the control circuit terminal block must be moved to the other
position.
(The output signals may be used in either the sink or source logic independently of the jumper con-
nector position.)
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signals when sink logic is selected
Current
FR-E700SC
DC input (sink type)
Example: AX40
RUN
Current
Current flow concerning the input/output
signals when source logic is selected
Current
SINK
+
–
FR-E700SC
Current
Fig. 3-17:
Changing the control logic
Wiring
+
SOURCE
DC input (source type)
Example: AX80
RUN
I001029E
I002127E