Filter
Top Products
3. WIRING
3-6
3.3 Wiring of the Control Circuit Terminals
CAUTION
Use shielded or twisted cables for wiring the control circuit input
terminals. Also run them away from the main circuit wiring and other
power cables. Not doing so can cause a malfunction due to noise.
3.3.1 Terminals
(1) Contact input terminals
Turning the signal across any terminal and common terminal "ON" (closing
those terminals)/"OFF" (opening those terminals) provides the corresponding
function as described below.
The shaded terminal symbols indicate that their functions can be changed.
Refer to: Chapter 8, 8.4 Selection of the Control
Circuit Contact Input Terminal Functions
S
y
mbol Name Description
STF
Forward
rotation start
Turn on this signal to start forward
rotation or turn it off to stop.
STR
Reverse
rotation start
Turn on this signal to start reverse
rotation or turn it off to stop.
Simultaneously
turning on these
signals gives a stop
command.
RES Reset
Turn on this signal (for more than 0.1s) to reset the protective
circuit activated. Turn it off after the protective circuit is reset.
MRS Output stop
Turn on this signal (for more than 0.1s) to stop the output and
separate the motor electrically, causing it to coast. Turing it off
with the start signal input will restart the motor at the starting
speed.
RH
High speed
RM Middle speed
RL Low speed
Combine on/off of these signals as appropriate to select
multiple speeds.
Refer to: Chapter 8, 8.3.2 Variable-speed
operation using contact input signals
SD
Contact input
common
Common to the contact input terminals. (Not isolated from
terminal 5.)
PC
External
transistor
common
Common terminal used when the contact input terminal is
connected to the transistor output (open collector output) of the
external controller. This terminal can prevent a malfunction
caused by a sneak current.
MEMO
Ratings of the contact input terminals
Input resistance: 4.7k
Ω
, open-time voltage: 24
±
3VDC,
short circuit-time current: 4 to 6mADC
Use the terminal PC as a power supply terminal.
Can be used as a power supply for a sensor or equivalent. The
common terminal is the terminal SD (digital common).
Power supply voltage range: 24
±
2VDC, max. permissible
current: 100mA
When the terminal is used as a power supply, it cannot be used as
an external transistor common terminal to prevent a sneak current.
The response time of the contact input terminal is 20ms
±
15ms.
(When the stall prevention function is activated, response may be
slower.)
Terminals SD and 5 are not isolated.