YASKAWA iQpump Micro CIMR-PW Series User Manual page 167

Output Frequency
NOTICE: Rapid deceleration can trigger an overvoltage fault. When faulted, the drive output shuts off, and the motor coasts. To avoid this
uncontrolled motor state and to ensure that the motor stops quickly and safely, set an appropriate Fast Stop time to C1-09.
Setting 18: Timer Function Input
This setting configures a digital input terminal as the input for the timer function. Use this setting combination with the timer
function output (H2-oo = 12).
Setting 19: PID Disable
Close a digital input to indefinitely disable the PID function. When the input is released, the drive resumes PID operation.
Setting 1B: Program Lockout
Parameter values cannot be changed when an input is programmed for Program Lockout and the input is open. It is still possible,
however, to view and monitor parameter settings.
Setting 1E: Reference Sample Hold
This function allows the user to sample an analog frequency reference signal being input to terminal A1, A2, or A3 and hold
the frequency reference at the sampled level. When the Analog Frequency Reference Sample/Hold function is held for at least
100 ms, the drive reads the analog input and changes the frequency reference to the newly sampled speed as illustrated in
Figure 5.45.
When the power is shut off and the sampled analog frequency reference is cleared, the frequency reference is reset to 0.
An oPE03 error will occur when one of the following functions is used simultaneously with the Analog frequency reference
sample/hold command:
• Hold accel/decel stop (setting: A)
• Up command, Down command (setting: 10, 11)
• Up or Down functions (setting: 75, 76)
Settings 20 to 2F: External Fault
The External fault command stops the drive when problems occur with external devices.
To use the External fault command, set one of the multi-function digital inputs to a value between 20 and 2F. The digital
operator will display EFo where o is the number of the terminal to which the external fault signal is assigned.
For example, if an external fault signal is input to terminal S3, "EF3" will be displayed.
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
Run/Stop
Fast-Stop
H1- = 17
ON
Figure 5.44 Fast Stop Sequence
Reference
Sample Hold Input
Figure 5.45 Analog Frequency Reference Sample/Hold
ON
ON
Decelerates at C1-09
OFF ON
100 ms 100 ms
5.7 H: Terminal Functions
ON
TIME
Frequency
Reference
Time
5
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