YASKAWA L1000V Technical Manual page 129

Figure 5.15
Speed
detection 1
Refer to L4-01, L4-02: Speed Agreement Detection Level and Detection Width on page 140
Setting 5: Speed Detection 2
Output closes whenever the output speed or motor speed is above the detection level set in L4-01. The terminal remains
closed until the output speed or motor speed falls below L4-01 minus the setting of L4-02.
Status
Open Output speed or motor speed is below L4-01 minus L4-02 or has not exceeded L4-01.
Closed Output speed or motor speed exceeded L4-01.
Note: Detection works in both forward and reverse. The value of L4-01 is used as the detection level for both directions.
Figure 5.16
Speed
Detection 2
Refer to L4-01, L4-02: Speed Agreement Detection Level and Detection Width on page 140
Setting 6: Drive ready
Output closes whenever the drive is ready to operate the motor. The terminal will not close under the conditions listed
below, and any Up/Down commands will be disregarded.
• When the power is shut off
• During a fault
• When the internal power supply of the drive has malfunctioned
• When a parameter setting error makes it impossible to run
• Although stopped, an overvoltage or undervoltage situation occurs
• While editing a parameter in the Programming Mode (when b1-08 = 0)
• When parameter L8-88 = 0 and at least one Safe Disable input is open
Setting 7: DC bus undervoltage
Output closes whenever the DC bus voltage or control circuit power supply drops below the trip level set in L2-05. A
fault in the DC bus circuit will also cause the terminal to set for "DC bus undervoltage" to close.
Status
Open DC bus voltage is above the level set to L2-05
Closed DC bus voltage has fallen below the trip level set to L2-05.
YASKAWA EUROPE SIEP
Output speed
or motor speed
OFF
ON
Figure 5.15 Speed Detection 1 Time Chart
Output Speed
or motor speed
OFF
ON
Figure 5.16 Speed Detection 2 Time Chart
YASKAWA AC Drive L1000V Technical Manual
L4-02
L4-01
Description
L4-02
L4-01
Description
5.7 H: Terminal Functions
L4-01
L4-02
common_
TMonly
for more details.
L4-01
L4-02
common_
TMonly
for more details.
5
129