Mechanical & Electrical
Installation
2
2.14 Control Circuit Wiring
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 105
NOTICE: Do not close the circuit between terminals SC and SN. Failure to obey will cause damage to the drive.
• Sourcing Mode: Install a jumper between terminals SC and SN.
NOTICE: Do not close the circuit between terminals SC and SP. Failure to obey will cause damage to the drive.
• External power supply: Remove the wire jumper between terminals SC-SN and terminals SC-SP.
*3 The output current capacity of the +V and -V terminals on the control circuit is 20 mA.
NOTICE: Do not install a jumper between terminals +V, -V, and AC. Failure to obey can cause damage to the drive.
*4 Set DIP switches S1-1 to S1-3 to select between a voltage or current input signal to terminals A1 to A3. The
default setting for S1-1 and S1-3 is voltage input (“V” side). The default setting for S1-2 is current input (“I”
side).
*5 Do not ground the control circuit terminals AC or connect them to the drive.
WARNING! Do not ground the control circuit terminals AC or connect them to the drive. Failure to comply may cause
malfunction or failure.
*6 Make sure that you connect terminals PS and AC correctly. Failure to obey will cause damage to the drive.
*7 Set DIP switch S2 to the ON position to enable the termination resistor in the last drive in a MEMOBUS/
Modbus communications.
*8 To use the internal power supply with the Safe Disable input, use sourcing mode.
*9 Disconnect the wire jumper between H1 and HC, and H2 and HC to use the Safe Disable input.
*10 Use multi-function analog monitor outputs with analog frequency meters, ammeters, voltmeters, and
wattmeters. Do not use monitor outputs with feedback-type signal devices.
◆ Control Circuit Terminal Block Functions
Hx-xx parameters set functions for the multi-function input and output terminals.
WARNING! Sudden Movement Hazard. Correctly wire the control circuits and make sure that control circuits operate correctly
after connecting the wires. Drives with untested control circuits can cause death or serious injury.
WARNING! Sudden Movement Hazard. Make sure that the drive I/O signals and external sequence are correct before doing a
test run. The I/O terminal function can automatically change from the factory setting when the setting for A1-06 [Application
Preset] changes. Failure to obey can cause death or serious injury.
NOTICE: Turn the drive ON (Run) and OFF (Stop) a maximum of one time each 30 minutes with the MC on the power source
side to extend the service life of the relay contacts and electrolytic capacitors in the drive. Run and Stop the motor as much as
possible with the drive. The drive can fail if users frequently turn the drive ON and OFF with the MC on the power source side to
Run and Stop the drive. Incorrect operation can decrease the service life of the relay contacts and electrolytic capacitors.
■ Input Terminals
Refer to Table 2.20 for a list of input terminals and functions.
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