2.7  H: Terminal Functions
YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide  183
Setting 1: Zero Speed
Terminal closes when the output frequency or motor speed (CLV) falls below the minimum output frequency set in 
E1-09 or b2-01.
Note: When using CLV control mode, the zero speed level is defined by b2-01. In all other control modes, the zero speed level is the 
minimum output frequency set in E1-09.
Figure 2.52  
Figure 2.52  Zero-Speed Time Chart
Setting 2: Speed Agree 1 (f
ref
 /f
out
 Agree 1)
Closes when the actual output frequency or motor speed (CLV) is within the Speed Agree Width (L4-02) of the current 
frequency reference regardless of the direction.
Note: 1. Detection works in both directions, forward and reverse. 
2. When using the CLV control mode, it is the motor speed ± L4-02 that is considered.
Figure 2.53  
Figure 2.53  Speed Agree 1 Time Chart
Refer to L4-01, L4-02: Speed Agreement Detection Level and Detection Width on page 210 for more details.
Status Description
Open Output frequency is above the minimum output frequency set to E1-09 or b2-01.
Closed Output frequency is 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 (open)
Output frequency
 or
motor speed
Zero Speed
ON (closed)
E1-09 (Minimum Output Frequency) or 
b2-01 (Zero Speed Level)
L4-02
L4-02
Frequency 
reference
Speed agree 1
ON
OFF
Output Frequency 
or Motor Speed
MV1000ParameterGuide_E_conditional.book  183 ページ  2013年10月11日 金曜日 午後8時18分