Yaskawa iQpump Programming Manual - Manual (Page 15)

YASKAWA TM.iQp.02 iQpump Drive Programming Manual 15
To issue the Run command via a network option card: Set b1-02 = “3: Option PCB,” and plug a network option board (p/n SI/J) into
the 2CN port on the Control PCB. Consult the manual supplied with the option board for instructions on integrating the iQpump drive
into your network system.
Important: If b1-01 = “3: Option PCB” but a network card is not installed in 2CN, an “OPE05” operator programming error will be
displayed on the digital operator and the iQpump drive will not run.
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b1-03 Stopping Method
There are four methods of stopping the iQpump drive when the Run command is removed.
0: Ramp to stop: When the Run command is removed, the iQpump drive will decelerate the motor to 0 rpm. The rate of deceleration is
determined by the active deceleration time. The factory default Decel Time is in parameter C1-02.
When the output frequency has dropped below the DC Injection Start Frequency in b2-01 (Default = 0.5 Hz) DC current will be injected
in the motor at a level determined by b2-02 (50% Default). The DC Injection condition will occur for the time specified by b2-04 (0.0
Default), to establish the end point of the ramp. DC injection can be used to insure the motor is at zero rpm prior to the iQpump drive
shutting off.
Figure 1.9
Figure 9 Deceleration to Stop
The actual deceleration time can be determined by the following formula.
If S-Curve characteristics are specified by the iQpump drive programming, they will add to the total time to stop.
1: Coast to stop: When the Run command is removed, the iQpump drive will turn off its output and the motor will coast (uncontrolled
deceleration). The friction of the driven equipment will eventually overcome any residual inertia of the system and the rotation will stop.
Setting Description
0 Ramp to Stop (factory default)
1 Coast to Stop
2 DC Injection to Stop
3 Coast w/Timer
ON
OFF
Run Command
Output Frequency Deceleration Time (C1-02)
DC Injection Brake
100 %
0 %
TIME
| b2-04 |
b2-01
(CLOSED)
(OPEN)
Time to Stop
Output Freq. at time of stop command
Maximum Frequency (E1-04)
------------------------------------------------------------------------------------------- Setting of active Decel Time (C1-02 or C1-04) × =