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11.2 Hard Wire Base Block (HWBB and SBB)
11.2.3 Resetting the HWBB State
11-6
11.2.3
Resetting the HWBB State
Normally, after the Shutdown command is received and power is no longer supplied to the Ser-
vomotor, the /HWBB1 and /HWBB2 signals will turn OFF and the SERVOPACK will enter the
HWBB state. If you turn ON the /HWBB1 and /HWBB2 signals in this state, the SERVOPACK
will enter a base block (BB) state and will be ready to acknowledge the Servo ON command
(Enable Operation command).
If the /HWBB1 and /HWBB2 signals are OFF and the Servo ON command (Enable Operation
command) is received, the HWBB state will be maintained even after the /HWBB1 and
/HWBB2 signals are turned ON.
Send the Shutdown command to place the SERVOPACK in the BB state and then send the
Servo ON command (Enable Operation command).
Note: If the SERVOPACK is placed in the BB state while the main circuit power supply is OFF, the HWBB state will
be maintained until the Shutdown command is received.
Controlword
(6040 hex)
Statusword
(6041 hex)
Ready to Switch on
Operation enabled
Shutdown
0
0
1
Switch on +
Enable operation
Statusword
(6041 hex, bit 15)
/HWBB1
/HWBB2
OFF (motor current
shut-OFF request)
SERVOPACK
Status
HWBB state
BB state
Operating Status
ON (normal operation)
Statusword
(6041 hex, bit 15)
1
0
Controlword
(6040 hex)
Statusword
(6041 hex)
Ready to
Switch on
Ready to
Switch on
Enable
Operation
Shutdown
Switch on +
Enable operation
Operation
Enable
/HWBB1
/HWBB2
OFF (motor current
shut-OFF request)
SERVOPACK
Status
HWBB state
BB state
Operating
Status
ON (normal operation)