YASKAWA F7 Programming Manual page 82

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Accel/decel Time Selection 1
Multi-function Input
Open or not set
Open or not set
Accel Time 1
(C1-01)
Output
Frequency
FWD (REV) Run Command
Accel/Decel Time Selection 1
(Terminals S3 to S8, H1-0x = "7")
Accel/Decel Time Selection 2
(Terminals S3 to S8, H1-0x = "1A")
* When "deceleration to stop" is selected (B1-03 = "0")
Function: External Baseblock N.O.
Setting: 8
Function: External Baseblock N.C.
Setting: 9
When the Drive is commanded into baseblock, gating of the output transistor stops and output voltage/frequency drops to zero
(motor coasts). The Drive can be forced into a baseblock state by either closing a digital input configured for Ext Baseblk N.O.
(H1-0x= 8) or opening a digital input configured for Ext Baseblk N.C. (H1-0x= 9).
When the baseblock state is removed the speed search function is used to catch the coasting motor and ramp it back to the
commanded speed.
The method of speed search, Current Detection or Speed Estimation, that is utilized when the baseblock input is removed
depends on the setting of parameter b3-01:
If b3-01= "0: SpdsrchF Disable" or "1: SpdsrchF Enable"; Speed Estimation is used
If b3-01= "2: SpdsrchI Disable" or "3: SpdsrchF Enable"; Current Detection is used
Accel/decel Time Selection 2
Setting = "7"
Closed
Closed
Decel Time 1* (C1-02)
Accel Time 2 (C1-03)
ON OFF ON
Fig. 45 Timing Diagram of Accel / Decel Time Change
Multi-function Input
Setting = "1A"
Open or not set
Open or not set
Closed
Closed
Decel Time 2*
Accel Time 3
(C1-04)
(C1-05)
Decel Time 1*
(C1-02)
ON OFF
Programming 74
Accel Time Decel Time
C1-01 C1-02
C1-03 C1-04
C1-05 C1-06
C1-07 C1-08
Decel Time 3* (C1-06)
Accel Time 4 (C1-07)
ON OFF ON
ON
ON
Decel Time 4*
(C1-08)
Decel Time 1*
(C1-02)
Time