B4: Timer Function - YASKAWA Z1000U Series Programming Manual

1.2 b: Application
Momentary power loss time t
0
Figure 1.13 Speed Search in Direction Opposite to Direction Command (b3-51 ≤ t)
n b3-52: Backspin Search Deceleration Time 1
Sets the search frequency deceleration rate when searching from the direction command when momentary power loss time t
is shorter than the time set in b3-50.
Set the value lower than the motor deceleration rate during coasting.
No.
b3-52
n b3-53: Backspin Search Deceleration Time 2
Sets the search frequency deceleration rate for a Speed Search from the opposite direction of the direction command when
momentary power loss time t is equal to or longer than the time set in b3-51.
No.
b3-53
u

b4: Timer Function

The timer function is independent of drive operation and can delay the switching of a digital output triggered by a digital input
signal and help eliminate chattering switch noise from sensors. An on-delay and off-delay can be set separately.
To enable the timer function, set a multi-function input to "Timer Function Input" (H1-oo = 18) and set a multi-function
output to "Timer output" (H2-oo = 12). Only one timer can be used.
n
b4-01, b4-02: Timer Function On-Delay, Off-Delay Time
b4-01 sets the on-delay time for switching the timer output. b4-02 sets the off-delay time for switching the timer output.
No.
b4-01
b4-02
n Timer Function Operation
The timer function switches on when the timer function input closes for longer than the value set to b4-01. The timer function
switches off when the timer function input is open for longer than the value set to b4-02.
function operation:
30
Power supply voltage
Forward operation
Normal operation b3-50
b3-51
Search in progress
Name
Backspin Search Deceleration Time 1
Name
Backspin Search Deceleration Time 2
Name
Timer Function On-Delay Time
Timer Function Off-Delay Time
b3-53
t
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
Setting Range
0.1 to 10.0 s
Setting Range
0.1 to 10.0 s
Setting Range
0.0 to 3000.0 s
0.0 to 3000.0 s
Figure 1.14 illustrates the timer
Default
2.0 s
Default
2.0 s
Default
0.0 s
0.0 s