B6: Dwell Function - YASKAWA GA700 Technical Manual

11.3 b: Application
■
b5-93: EZ Sleep Time
No.
Name
(Hex.)
b5-93 EZ Sleep Time
(0B93)
RUN
■
b5-94: EZ Wake-up Level
No.
Name
(Hex.)
b5-94 EZ Wake-up Level
(0B94)
RUN
Note:
The unit of measure is determined by the settings of b5-20 [PID Setpoint Scaling], b5-38 [PID Setpoint User Display], and b5-39 [PID
Setpoint Display Digits]. This parameter is not automatically updated when b5-20, b5-38, and b5-39 are changed. Make sure to
reconfigure this parameter if the setting values of b5-20, b5-38, and b5-39 are changed.
• When b5-95 = 0 [EZ Wake-up Mode = Absolute]:
The drive resumes operation from the sleep state when the CASE AI 1 [H3-xx = 20] drops below the setting
value of b5-94 for a time longer than the setting value of b5-96 [EZ Wake-up Time] while b5-09 = 0 [PID
Output Level Selection = Normal output (direct acting)]. The drive resumes operation from the sleep state when
the PID feedback rises above the setting value of b5-94 for a time longer than the setting value of b5-96 while
b5-09 = 1 [PID Output Level Selection = Reverse output (reverse acting)].
• When b5-95 = 1 [Setpoint Delta]:
The drive resumes operation from the sleep state when the PID feedback drops below the setting value of b5-94
for a time longer than the setting value of b5-96 while b5-09 = 0 [PID Output Level Selection = Normal output
(direct acting)]. The drive resumes operation from the sleep state when the PID feedback rises above the setting
value of b5-94 for a time longer than the setting value of b5-96 while b5-09 = 1 [PID Output Level Selection =
Reverse output (reverse acting)].
■
b5-95: EZ Wake-up Mode
No.
Name
(Hex.)
b5-95 EZ Wake-up Mode
(0B95)
0 : Absolute
1 : Setpoint Delta
■
b5-96: EZ Wake-up Time
No.
Name
(Hex.)
b5-96 EZ Wake-up Time
(0B96)
The drive resumes operation from the sleep state when the PID feedback has dropped below the value of b5-94
[EZ Wake-up Level] continuously for the time configured with b5-96.
◆

b6: Dwell Function

The Dwell function briefly maintains the output frequency at start and stop.
This prevents motor speed loss when stopping and starting heavy loads. The Dwell function is also enabled when
shock occurs at the beginning of acceleration and deceleration due to backlash on the machine side.
At the start of acceleration, the drive automatically operates at low speed using the output frequency and
acceleration time set for the Dwell function to minimize the effects of backlash. Afterwards, the drive can
accelerate again. The Dwell function is used in the same way for deceleration.
634
V/f CL-V/f OLV CLV AOLV
The drive enters the sleep state when the output frequency or motor speed
drops below the value of b5-92 [EZ Sleep Level] for a time longer than the
setting value of b5-93.
V/f CL-V/f OLV CLV AOLV
Configures the level at which the drive resumes operation from the Sleep
mode.
V/f CL-V/f OLV CLV AOLV
Selects the wake-up mode used when resuming operation from the Sleep
mode.
V/f CL-V/f OLV CLV AOLV
Configures the EZ Wake-up time.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Default Setting
(Range)
5.0 s
(0.0 - 1000.0 s)
Default Setting
(Range)
0.00%
(0.00 - 600.00%)
Default Setting
(Range)
0
(0, 1)
Default Setting
(Range)
1.0 s
(0.0 - 1000.0 s)