Operation Without A Host Controller; S-Rdy (Servo Ready Output) Signal - YASKAWA SGD7S Product Manual

11.2 Hard Wire Base Block (HWBB)

11.2.7 Operation without a Host Controller

11.2.7 Operation without a Host Controller

The HWBB will operate even for operation without a host controller.
However, if the HWBB operates during execution of the following functions, leave the execution
mode for the function and then enter it again to restart operation. Operation will not be
restarted simply by turning OFF the /HWBB1 and /HWBB2 signals.
Applicable Functions
• Jogging
• Origin search
• Program jogging
• Automatic adjustment without
host reference
• Easy FFT
• Adjustment of motor current
detection signal offset
11.2.8

/S-RDY (Servo Ready Output) Signal

The SV_ON (Servo ON: 31 hex) command will not be acknowledged in the HWBB state. There-
fore, the Servo Ready Output Signal will turn OFF.
The Servo Ready Output Signal will turn ON if both the /HWBB1 and /HWBB2 signals are ON
and the servo is turned OFF (BB state).
An example is provided below for when the main circuit power supply is ON and the SENS_ON
(Turn Sensor ON) command is input when there is no servo alarm. (An absolute encoder is
used in this example.)
/HWBB1
/HWBB2
Servo ON
SERVOPACK
Status
/S-RDY (Servo
Ready Output
Signal)
11-8
Function
execution
status
/HWBB1
/HWBB2
SERVOPACK
Status
OFF (motor current
ON (normal
shut-OFF request)
operation)
ON
Operating
HWBB state
Status
OFF
ON
Resetting the HWBB State
After you turn ON the /HWBB1 and
/HWBB2 signals, leave the execution mode
for the function and then enter it again.
Function
execution mode
OFF (motor
current
shut-OFF
ON (normal
ON (normal
request)
operation)
operation)
Operating
HWBB state
Status
ON (normal
operation)
OFF
BB state
ON
Not function
Function
execution mode
execution mode
Operating
BB state
Status