<3> Self-cooled motors do not require separate cooling fan motor wiring.
<4>
Connected using sequence input signal (S1 to S5) from NPN transistor; Default: sink mode (0 V com).
<5> Use only a +24 V internal power supply in sinking mode; the source mode requires an external power supply. Refer
to I/O Connections on page 47.
<6> Minimum load: 5 Vdc, 10 mA (reference value).
<7> Monitor outputs work with devices such as analog frequency meters, ammeters, voltmeters and wattmeters; they are
not intended for use as a feedback-type of signal.
WARNING! Sudden Movement Hazard. Do not close the wiring for the control circuit unless the multifunction input terminal parameter is
properly set (S5 for 3-Wire; H1-05 = “0”). Improper sequencing of run/stop circuitry could result in death or serious injury from moving
equipment.
WARNING! Sudden Movement Hazard. Ensure start/stop and safety circuits are wired properly and in the correct state before energizing
the drive. Failure to comply could result in death or serious injury from moving equipment. When programmed for 3-Wire control, a momentary
closure on terminal S1 may cause the drive to start.
WARNING! When 3-Wire sequence is used, set the drive to 3-Wire sequence before wiring the control terminals and ensure parameter
b1-17 is set to 0 (drive does not accept a run command at power up (default). If the drive is wired for 3-Wire sequence but set up for 2-Wire
sequence (default) and if parameter b1-17 is set to 1 (drive accepts a Run command at power up), the motor will rotate in reverse direction
at power up of the drive and may cause injury.
Figure 3.2 illustrates an example of a 3-Wire sequence.
Drive
Sequence input common
Run relay (N.O.)
Stop relay (N.C.)
Run command (run on momentary close)
Stop command (stop on momentary open)
Foward/reverse command
(multi-function input: H1-05 = 0)
S1
S2
S5
SC
Figure 3.2 3-Wire Sequence
3.2 Standard Connection Diagram
YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual
35
3
Electrical Installation
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