Standard connection diagram – Yaskawa AC Drive-L1000E Safety Precautions User Manual
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5 Electrical Installation
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YASKAWA TOEP YAIL1E 02A YASKAWA AC Drive - L1000E Safety Precautions
Standard Connection Diagram
WARNING! Sudden Movement Hazard. Holding brake circuits.
• Ensure holding brake circuits are properly configured, load equipment may fall or drop during power loss
or drive fault, which could result in death or serious injury. Provide a separate holding brake if necessary.
• Always construct the external sequence to confirm that the holding brake is activated in the event of an
emergency, a power failure, or an abnormality in the drive.
• When using the drive with an elevator, provide safety measures on the elevator to prevent the elevator
from dropping.
• 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.
NOTICE: When the input voltage is 440 V or higher or the wiring distance is greater than 100 meters (328 ft.), pay special attention to
the motor insulation voltage or use a drive rated motor. Failure to comply could lead to motor insulation breakdown.
Connection Diagram Notes
<1> Remove the jumper when installing a DC link choke. Models 2A0106 through 2A0432 and 4A0056 through
4A0260 come with a built-in DC link choke.
<2> Set L8-55 to 0 to disable the protection function of the built-in braking transistor of the drive when using an
optional regenerative converter or dynamic braking option.
<3> Set up a thermal relay sequence to disconnect drive main power in the event of an overheat condition on the
dynamic braking option.
<4> Self-cooling motors do not require the same wiring necessary for motors with separate cooling fans.
<5> Supplying power to the control circuit separately from the main circuit requires a 24 V power supply (option).
<6> For control modes that do not use a motor speed feedback signal, PG option card wiring is not necessary.
<7> This figure illustrates an example of a sequence input to S1 through S8 using a non-powered relay or an NPN
transistor. Install the wire link between terminals SC-SP for Sink mode, between SC-SN for Source mode, or
leave the link out for external power supply. Never short terminals SP and SN, as it will damage the drive.
<8> The maximum output current capacity for the +V and -V terminals on the control circuit is 20 mA. Never short
terminals +V, -V, and AC, as it can cause erroneous operation or damage the drive.
<9> Set DIP switch S2 to the ON position to enable the termination resistor in the last drive in a MEMOBUS/
Modbus network.
<10>The sink/source setting for the Safe Disable input is the same as with the sequence input. Jumper S3 has the
drive set for an external power supply. When not using the Safe Disable input feature, remove the jumper
shorting the input and connect an external power supply. Refer to
Setting Sink/Source for Safe Disable
for instructions.
<11> Disconnect the wire jumper between H1 - HC and H2 - HC when utilizing the Safe Disable input.
<12>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.
<13>When the drive is set to trigger a fault output upon activation of the fault reset function (L5-02 = 1), a
sequence to interrupt power when a fault occurs will shut off the power to the drive when the drive attempts a
reset. The default setting for L5-02 is 0 (fault output not active during reset attempt).
<14>Wire fault contact outputs MA, MB, and MC. Wire so that a fault will open the safety circuit and interrupt
drive output.
<15>When using the Programming Mode to edit parameter settings, the drive will not accept an Up/Down
command. If the drive still will not run when an Up/Down command has been entered and no fault is present,
then use the "Drive ready" signal (the default setting for terminal M5-M6) to interlock components.