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11.2 Hard Wire Base Block (HWBB)
11.2.3 Resetting the HWBB State
11-6
11.2.3
Resetting the HWBB State
Normally, after the SV_OFF (Servo OFF: 32h) command is received and power is no longer sup-
plied to the Servomotor, 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 SV_ON
(Servo ON: 31h) command.
If the /HWBB1 and /HWBB2 signals are OFF and the SV_ON (Servo ON: 31h) command is
received, the HWBB state will be maintained even after the /HWBB1 and /HWBB2 signals are
turned ON. Send the SV_OFF (Servo OFF: 32h) command to place the SERVOPACK in the BB
state and then send the SV_ON (Servo ON: 31h) 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 SV_OFF (Servo OFF: 32h) command is received.
/HWBB1
/HWBB2
1
0
0
0
1
OFF (motor current
s
hut-OFF reque
s
t)
MECHATROLINK-III
command
S
ervo command
s
tatu
s
S
V_ON
S
ervo command
input
s
ignal monitor
E
S
TP
S
ERVO-
PACK
S
tatu
s
HWBB
s
tate
BB
s
tate
Operating
S
tatu
s
S
MON or
other command
S
V_ON command
ON (normal operation)
/HWBB1
/HWBB2
0
1
0
0
0
1
OFF (motor current
s
hut-OFF reque
s
t)
MECHATROLINK-III
command
S
ervo command
s
tatu
s
S
V_ON
S
ervo command input
s
ignal monitor
E
S
TP
S
ERVOPACK
S
tatu
s
HWBB
s
tate
BB
s
tate
Operating
S
tatu
s
S
V_ON command
S
V_OFF
command
S
V_ON
command
ON (normal operation)