B6: Dwell Function - Omron Q2V Series Technical Manual

12.2 b: APPLICATION
start operation again. When b5-09 = 1 [Reverse output], and the PID feedback is more than setting value of b5-
94 for a time longer than the setting value of b5-96, the drive will exit sleep and start operation again.
• When b5-95 = 0 [Setpoint Delta]:
When b5-09 = 0, and the PID feedback is less than the value of "PID setpoint value - b5-94" for a time longer
than the value of b5-96, the drive will exit sleep and start operation again. When b5-09 = 1, and the PID
feedback is more than the value of "PID setpoint value + b5-94" for a time longer than the setting value of b5-
96, the drive will exit sleep and start operation again.
■
b5-95: EZsleep Wake Mode
No.
Name
(Hex.)
b5-95 EZsleep Wake Mode
(0B95)
0 : Setpoint Delta
1 : Absolute
■
b5-96: EZsleep Wake Time
No.
Name
(Hex.)
b5-96 EZsleep Wake Time
(0B96)
RUN
When the PID feedback is less than the value of b5-94 [EZsleep Wake Level] continuously for the time set in b5-
96, the drive will exit sleep and start operation again.
◆

b6: DWELL FUNCTION

The Dwell function momentarily holds the output frequency at start and stop.
This prevents motor speed loss when you start and stop heavy loads. The Dwell function is also enabled when
backlash on the machine side causes sudden movement at the start of acceleration and deceleration.
At the start of acceleration, the drive uses the output frequency and acceleration time set for the Dwell function to
automatically operate at low speed to minimize the effects of backlash. Then, the drive can accelerate again. The
Dwell function operates the same for deceleration.
For conveyor applications, the Dwell function also lets the drive interlock the output frequency and a delay time
for the holding brake on the load side.
The Dwell function momentarily stops during acceleration to prevent a PM motor from stepping out.
shows how the Dwell function works.
Note:
When you use the Dwell function at stop, set b1-03 = 0 [Stopping Method Selection = Ramp->Stop].
■
b6-01: Dwell Ref.@Start
No.
Name
(Hex.)
b6-01 Dwell Ref.@Start
(01B6)
482
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the wake-up mode to use when exiting Sleep Mode.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the EZ Wake-up time.
Figure 12.34 Time Chart for the Dwell Function at Start/Stop
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the output frequency that the drive will hold momentarily when the motor starts.
Description
Description
Description
SIEPCYEUOQ2V01A Q2V Technical Manual
Default
(Range)
0
(0, 1)
Default
(Range)
1.0 s
(0.0 - 1000.0 s)
Figure 12.34
Default
(Range)
0.0
(Determined by A1-02)