11.2 Hard Wire Base Block (HWBB and SBB)
11.2.2 Hard Wire Base Block (HWBB) State
11-5
11
Safety Functions
•
If a failure occurs such as a Power Module failure, the Servomotor may move within an elec-
tric angle of 180
°
. Ensure safety even if the Servomotor moves.
The rotational angle or travel distance depends on the type of Servomotor as follows:
•
Rotary Servomotor: 1/6 rotation max. (rotational angle calculated at the motor shaft)
•
Linear Servomotor: 50 mm max.
•
The HWBB does not shut OFF the power to the SERVOPACK or electrically isolate it. Imple-
ment measures to shut OFF the power supply to the SERVOPACK before you perform main-
tenance on it.
11.2.2
Hard Wire Base Block (HWBB) State
The SERVOPACK will be in the following state if the HWBB operates. If the /HWBB1 or
/HWBB2 signal turns OFF, the HWBB will operate and the SERVOPACK will enter a HWBB
state.
Statusword
(6041 hex)
Controlword
(6040 hex)
Disable Operation
Enable
Operation
0
1
Digital inputs
(60FD hex, bits 24 and 25)
0
1
Statusword
(6041 hex, bit 15)
Switched on
Switched on
Disabled
Operation
enabled
Statusword
(6041 hex)
Controlword
(6040 hex)
Enable Operation
Operation enabled
Switched on Disabled
/HWBB1
/HWBB2
/HWBB1
/HWBB2
• When HWBB Operates after Servo OFF (Power Not Supplied to Motor)
• When HWBB Operates While Power Is Supplied to Servomotor
ON (normal
operation)
SERVOPACK
Status
Operating Status
HWBB state
OFF (motor current shut-OFF request)
ON (normal operation)
SERVOPACK
Status
Operating
Status
BB state
HWBB state
OFF (motor current
shut-OFF request)
