Changing The Control Logic - Mitsubishi Electric FR-S500E Instruction Manual

1.3.3

Changing the control logic

The input signals are set to source
logic.
To change the control logic, the
jumper connector under the setting
dial must be moved to the other
position.
Change the jumper connector
position using tweezers, a pair of
long-nose pliers etc.
Change the jumper connector
position before switching power on.
CAUTION
Make sure that the front cover is installed securely.
The front cover is fitted with the capacity plate and the inverter unit with the
rating plate. Since these plates have the same serial numbers, always replace
the removed cover onto the original inverter.
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
inverter may be damaged.
1) Source logic type
In this logic, a signal switches on when a current flows into the corresponding signal
input terminal.
Terminal PC is common to the contact input signals. For the open collector output
signals, terminal SE is a positive external power supply terminal.
PC
Power
supply STF
STR
Connecting the 0V terminal of the
external power supply for transistor
output to terminal SD prevents a
malfunction caused by an undesirable
current.
R
R
21
How to use the control circuit terminals
Inverter
RUN
SE
24VDC
AY80
transistor
output module
9
PC
STF
1
2 STR
10 SD
Current flow
AX80
1
R
R
9
Inverter
24VDC
(SD)
1