Publicidad
Idiomas disponibles
Idiomas disponibles
• During Run
If you trigger the Safe Disable function during run, clear the Up/Down command, then close the circuit between
terminals H1-HC and H2-HC to disable "Safe Torque Off". Enter the Stop command, then enter the Up/Down
command when terminals H1 and H2 are activated.
To release the "Safe Torque Off" state, activate (close) terminals H1 and H2.
When you enter the Up/Down command before terminals H1 and H2 are activated, drive operation is different for
different L8-88 [Safe Disable Operation Mode] settings:
• When L8-88 = 0 [Mode 0 (Alarm-On, Ready-Off)], you must cycle the Up/Down command to start the motor.
• When L8-88 = 1 [Mode 1 (Alarm-Off, Ready-On)] (default), the drive starts the motor immediately after the
"Safe Torque Off" state releases.
When L8-88 = 1, you can use S6-16 [BaseBlock (BB) Restart Selection] to set how the drive behaves when
terminals H1 and H2 are activated and deactivated while the Up/Down command stays active.
• When S6-16 = 0 [Disabled] (default), the drive will not restart and you must cycle the Up/Down command.
• When S6-16 = 1 [Enabled], the drive will restart immediately when terminals H1 and H2 are activated.
Safe Disable Monitor Output Function and Keypad Display
Refer to
Table 1.17
for information about the relation between the input channel status, Safety monitor output
status, and drive output status.
Table 1.17 Safe Disable Input and External Device Monitor (EDM) Terminal Status
Input 1 (H1-HC)
Input Channel Status
Input 2 (H2-HC)
MFDO Terminal
MFDO Terminal
(H2-xx = 21)
MFDO Terminal
(H2-xx = 121)
MFDO Terminal
MFDO Terminal
(H2-xx = 58)
MFDO Terminal
(H2-xx = 158)
Drive Output Status
Keypad Display
LED Status Ring
MEMOBUS Register
0020 (Hex.)
Safety Function Status Monitor
The drive Safety monitor output sends a feedback signal about the status of the Safety function. The Safety
monitor output is one of the possible settings available for the MFDO terminals. If there is damage to the Safe
Disable circuit, a controller (PLC or safety relay) must read this signal as an input signal to hold the "Safe Torque
Off" status. This will help verify the condition of the safety circuit. Refer to the manual for the safety device for
more information about the Safety function.
You can use the MFDO function settings to switch the polarity of the Safety monitor output signal. Refer to
1.17
for setting instructions.
Keypad Display
If the two input channels are OFF (Open), the keypad will flash STo [Safe Torque OFF].
If there is damage to the Safe disable circuit or the drive, the keypad will flash SToF [Safe Torque OFF
Hardware] when one input channel is OFF (Open) and the other is ON (Close the circuit). When you use the Safe
disable circuit correctly, the keypad will not show SToF.
If there is damage to the drive, the keypad will show SCF [Safety Circuit Fault] when the drive detects a fault in
the Safe disable circuit. Refer to the chapter on Troubleshooting for more information.
Validating the Safe Disable Function
After you replace parts or do maintenance on the drive, first complete all necessary wiring to start the drive, then
test the Safe Disable input with these steps. Keep a record of the test results.
Note:
This validation should be performed at least once every three months in order to guarantee the specification values of the safety
parameters.
YASKAWA TOMPYEULA7002A LA700 Series Installation and Operation Instruction
ON (Close the circuit)
ON (Close the circuit)
OFF
(H2-xx = 21)
ON
OFF
(H2-xx = 58)
ON
Baseblock (Drive ready)
Normally displayed
Ready: Illuminated
bit C: 0
bit D: 0
ON (Close the circuit)
OFF (Open)
OFF (Open)
ON (Close the circuit)
OFF
ON
ON
OFF
Safety status (STo)
Safety status (STo)
SToF (Flashing)
SToF (Flashing)
ALM/ERR: Flashing
ALM/ERR: Flashing
bit C: 1
bit D: 0
1 English
OFF (Open)
OFF (Open)
OFF
ON
ON
OFF
ON
ON
OFF
OFF
Safety status (STo)
STo (Flashing)
Ready: Flashing
bit C: 1
bit C: 0
bit D: 0
bit D: 1
Table
45
Publicidad
