Operation Example For The Hard Wire Base Block; Hwbb Status Monitor; Restoring Operation From A Hwbb State; Error Detection In Hwbb Signal - YASKAWA UAK series User Manual

8 Operation

8.8.2 Operation Example for the Hard Wire Base Block

8.8.2

Operation Example for the Hard Wire Base Block

An operation example of the HWBB function is shown below.
If the /HWBB signal is received (OFF) while power is being supplied to the motor, power to the motor will be
shut OFF and the Statusword (Object 6041h) will change to the Switch on Disabled state.
[Operation when /HWBB Signal Is Received (OFF) during Motor Operation]
/HWBB signal
Controlword
Digital inputs
(60FDh bit 24, 25)
SERVOPACK state
8.8.3

HWBB Status Monitor

The status of HWBB function execution can be monitored using the following objects.
Statusword (6041h)
Bit
15
8.8.4

Restoring Operation from a HWBB State

Restoring operation from a HWBB state are as follows.
(1) Conditions for Restoring Operation
Satisfy all of the following conditions to return to normal operation.
• The input states of all HWBB signals must be ON.
• The servo ON command must be OFF.
• If the SigmaWin for Σ-V-SD (MT) is connected, the Servo ON command from the SigmaWin for Σ-V-SD
(MT) must not be active.
(2) Procedure to Return to Normal Operation
1. Specify a Shutdown command in the Controlword (Object 6040h bits 0 to 3) to reset the drive state.
2. Specify a Switch on + Enable operation command in the Controlword (Object 6040h bits 0 to 3).
Power will be supplied to the motor.
8.8.5

Error Detection in HWBB Signal

If only the /HWBB1 or /HWBB2 signal is input, an A.Eb1 alarm (HWBB Function Signal Input Timing Error)
will occur unless the other signal is input within 10 seconds. This makes it possible to detect failures, such as
disconnection of the HWBB signals.
8-38
ON
Enable operation
(6040h)
Statusword
Operation enabled
(6041h)
0
Motor power ON
State
HWBB active
OFF
Shutdown
Switch on
Ready to Switch on
Disabled
1
Motor power OFF
0: –
1: The HWBB function is operating.
ON
Switch on +
Enable operation
Operation enabled
0
Motor power ON
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