4. Insert the conductor into the wire insertion hole. Then, remove the Spring Opener or
flatblade screwdriver.
5. Make all other connections in the same way.
6. When you have completed wiring, attach the connectors to the SERVOPACK.
5.4.4 Power ON Sequence
Consider the following points when you design the power ON sequence.
n The ALM (Servo Alarm) signal is output for up to five seconds when the control power
supply is turned ON. Take this into consideration when you design the power ON
sequence, and turn ON the main circuit power supply to the SERVOPACK when the
ALM signal is OFF (alarm cleared).
Control power supply
/S_RDY (Servo Ready)
signal
Up to 5.0 s
ALM (Servo Alarm)
signal
Alarm cleared.Alarm
ONOFF
Main circuit power supply
ONOFF
ONOFF
Power ON
Motor power status
Power supplied.Power not supplied.
Controlword (6040h)
Disable
Operation
Enable
Operation
Fig. 50: Power ON Sequence
If the servo ON state cannot be achieved by inputting the Servo ON com-
mand (Enable Operation command), the /S_RDY signal is not ON. Check
the status of the /S_RDY signal. Refer to the following section for details.
Ä
Chap. 7.2.7 ‘/S-RDY (Servo Ready) Signal’ page 201
n If you use a DC power supply input with any of the following SERVOPACKs, use the
power ON sequence shown below: SGD7S-330A, -470A, -550A, -590A, or -780A.
Control power supply
ON
OFF
ONOFFMain circuit power supply
Motor power status
Power not
supplied. Power
supplied.
Inrush current suppression
resistor switch
Switch: Open
Switch: Closed (Resistance connected.)
0.5 s min. Approx. 2 times switch
operating time according
to switch specifications
Open switch 0.1 s or
longer after power is
not supplied to motor.
Fig. 51: Power ON Sequence - Using a DC power supply input
Sigma-7 Series SERVOPACKs
Wiring and Connecting SERVOPACKs
Wiring the Power Supply to the SERVOPACK > Power ON Sequence
| | PROFINET Communications - SIEP YEUOC7P 02A Revision 0 | en | 97
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