YASKAWA L1000A Technical Manual page 185

Setting 7: Accel/decel ramp selection 1
Switches between accel/decel times 1 (C1-01 and C1-02) and 2 (C1-03 and C1-04). Refer to
Decel Ramps 1 to 4 on page 154
Setting 8, 9: Baseblock command (N.O., N.C.)
When the drive receives a baseblock command, the output transistors stop switching, the motor coasts to stop, and a bb
alarm flashes on the digital operator to indicate baseblock.
DIgital Input Function
Setting 8 (N.C.)
Setting 9 (N.O.)
WARNING! Sudden Movement Hazard. When using a mechanical holding brake with the drive in a lifting application, close the brake
when the drive output is cut off by a baseblock command triggered by one of the input terminals. Failure to comply will result in a
slipping load from the motor suddenly coasting when the baseblock command is entered and may cause serious injury or death.
Setting F: Not used (Through mode)
Select this setting when using the terminal in a pass-through mode. When set to F, an input does not trigger any function
in the drive. Setting F, however, still allows the input status to be read out by a PLC via a communication option or
MEMOBUS/Modbus communications.
Setting 14: Fault reset
When the drive detects a fault condition, the fault output contact closes, the drive output shuts off, and the motor coasts to
stop (specific stopping methods can be selected for some faults such as L1-04 for motor overheat). After removing the
Up/Down command, clear the fault either by pressing the RESET key on the digital operator or closing a digital input
configured as a Fault Reset (H1-
Note: Remove the Up/Down command prior to resetting a fault. Fault Reset commands are ignored while the Up/Down command is
present.
Setting 15, 17: Fast Stop (N.O., N.C.)
The Fast Stop function operates similar to an emergency stop input to the drive. If a Fast Stop command is input while the
drive is running, the drive decelerates to a stop in the deceleration time set to C1-09
page 155). The drive can only be restarted after bringing the drive to a complete stop, turning off the Fast Stop input, and
switching off the Up/Down command.
• To trigger the Fast Stop function with a N.O. switch, set H1-
• To trigger the Fast Stop function with a N.C. switch, set H1-
Figure 5.16 shows an operation example of Emergency Stop.
Figure 5.16
Up/Down/Stop
NOTICE: Rapid deceleration can trigger an overvoltage fault. When faulted, the drive output shuts off, and the motor coasts. To avoid
this uncontrolled motor state and to ensure that the motor stops quickly and safely, set an appropriate Fast Stop time to C1-09.
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
for details.
Baseblock (Interrupt output)
= 14).
Fast Stop
H1- = 17
ON
Output Speed
Figure 5.16 Fast Stop Sequence
Drive Operation
Input Open
Normal operation
= 15.
= 17.
ON
ON
Decelerates at C1-09
5.7 H: Terminal Functions
C1-01 to C1-08: Accel,
Input Closed
Normal operation
Baseblock (Interrupt output)
(Refer to C1-09: Fast Stop Ramp on
ON
common_
TMonly
TIME
5
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