5.7 H: Terminal Functions
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 247
Setting 1: Zero Speed
Terminal closes whenever the output frequency or motor speed (CLV, CLV/PM) becomes less than the minimum output
frequency set to E1-09 or b2-01.
Note: When using CLV or CLV/PM control modes, the output terminal will close when the motor speed becomes less than the zero
speed level set for b2-01. In all other control modes, the output terminal will close when the output frequency becomes less than
the minimum output frequency set for E1-09.
Figure 5.69
Figure 5.69 Zero-Speed Time Chart
Setting 2: Speed agree 1 (f
ref
/f
out
Agree 1)
Closes whenever the actual output frequency or motor speed (CLV, CLV/PM) is within the Speed Agree Width (L4-02)
of the current frequency reference regardless of the direction.
Note: Detection works in both directions, forward and reverse.
Figure 5.70
Figure 5.70 Speed Agree 1 Time Chart
Refer to L4-01, L4-02: Speed Agreement Detection Level and Detection Width on page 288 for more details.
Status Description
Open Output frequency is more than or equal to the minimum output frequency set to E1-09 or b2-01
Closed Output frequency becomes less than the minimum output frequency set to E1-09 or b2-01
Status Description
Open Output frequency or motor speed does not match the frequency reference while the drive is running.
Closed Output frequency or motor speed is within the range of frequency reference ±L4-02.
OFF
Output frequency
or
motor speed
Zero Speed
ON
E1-09 (Min. Output Frequency) or
b2-01 (Zero Speed Level)
L4-02
L4-02
Frequency
reference
Speed agree 1
ON
OFF
Output Frequency
or Motor Speed
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