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3. WIRING
3-7
3
NOTICE
When a transistor is used to input the signal of the contact input
terminal, make sure that the electrical characteristics of the
transistor used satisfy the following:
I
C
: Collector current, 10mA or more
V
CEX
: Open-time collector-emitter permissible voltage, 30V or
more
V
CE(sat)
: Conduction-time collector-emitter saturation voltage, 3V
or less
I
CEX
: Collector shutoff current (leakage current), 100uA or less
When a relay contact is used to input the signal of the contact input
terminal, use two faint signal contacts in parallel or use a twin
contact to prevent a contact fault.
(2) Speed command input terminals
Terminals used to vary the motor speed with analog signals.
The parameter function allows you to choose the analog speed command
specifications.
Refer to: Chapter 8, 8.3.1 Selection of the analog
speed command specifications
Symbol Name Rating Description
2
Voltage
input
Input resistance: 10
±
1k
Ω
Max. permissible voltage:
20VDC
You can perform operation at the
speed proportional to a 0 to 10VDC (or
0 to 5VDC) voltage signal.
4 Keep this terminal open.
5
Analog
common
Common to the speed command input
terminals. Do not earth.
10
Power
supply 5V
5V
±
0.2VDC
Permissible load current:
10mA
Can be used as a power supply for the
analog input signal, e.g. speed setting
potentiometer.
The common terminal is terminal 5.
(3) Transistor output terminals
When the function of any terminal is activated, the internal transistor (open
collector output) connected across that terminal and common terminal turns
ON (conducts).
You can set the parameter function to change the function of each terminal.
Refer to: Chapter 8, 8.7.2 Selection of the control
circuit output terminal functions
Chapter 8, 8.7.3 Detection of running speed
Symbol Name
Description
RUN Running
ON (conducts) while the drive unit is outputting a speed command
to the motor. OFF (does not conduct) during stop or coasting.
FU
Speed
detection
Turns ON (conducts) when the speed output by the drive unit
reaches or exceeds the preset value. OFF (does not conduct)
when the speed is less than that.
SE
Transistor
output
common
Common to the transistor output terminals. Isolated from the
terminals SD, 5.