Yaskawa P1000 Series AC Drive for PID Control

Yaskawa P1000 Series AC Drive for PID Control


Welcome to G-TV! Today I will be showing you
how to set up the Yaskawa P1000 Series AC Drive for PID control. The P1000 series of
Drives is an industrial fan and pump drive. The demonstration today will show how to set
up PID for a fan. When programming, values for the parameters should be specific to the
application and may differ upon application and intended use. For PID control, there must
be some form of feedback device such as a sensor in order for proper operation. Wiring
should also be verified by a qualified electrician before operating the drive. For understanding
how to use the P1000 for motor applications and how to use the keypad, check out our other
videos on the P1000. To begin, I will push the local/remote key to put the drive into
local operation. Next, I will push the arrow key down a few times until I get to the programming
mode. I will push enter to access the parameter’s menu. I can also use the arrow keys to scroll
up or down to access my desired parameter. The parameter A1-03 is the initialization
mode that defines the application from general, pump, pump with PI control, fan, and fan with
PI control. To set up a fan with PID control, I will scroll to 8011 and hit enter to save.
The B parameters are application-related settings and are also where I will be setting my parameters
for PID control. For B1-01 to B1-04, I can change the frequency reference, run command,
stopping method, and reverse operation selection. Scrolling to B5-12 is the PID feedback loss
detection parameter. This allows me to determine how the drive will notify the user when PID
feedback level is either lower or higher than the desired setting. This can be done with
a digital output, feedback loss alarm, or feedback loss fault. Next I can scroll to
B5-18 to enable PID set points. I will push enter to change the default value of zero
to a one and then push save. Now I can go to B5-19 to set the value in terms of percent.
I will adjust this to 80 and then push enter. The next parameter to change is B5-20 for
PID set point scaling. If I would like to set this of a user defined display for PID
setpoint and feedback monitors, I will change this to a 3 and hit enter. Next is B5-38,
which is the set point user display that can be set from 1 to 60,000. This scales the PID
units to the maximum output frequency. I will keep this at 10,000. The next parameter is
B5-39 for setting the setpoint display digits. I can pick how many decimal points with the
number here. I will keep this at two and move on to the next parameter, which is B5-46.
This parameter sets the PID units. Currently PSI is the unit. I will hit enter and scroll
to the number 4 for CFM or cubic feet per minute. I will then hit enter to save. Next
I will go over the sets of parameters used for setting EZ sleep and wake up functions.
These can be turned on by setting B5-89 from a zero to one. B5-90 sets the EZ sleep unit
in terms of frequency or RPM. B5-91 sets the EZ minimum speed, which is the PID minimum
speed and integral lower limit. I can set this up to 400 Hz or 24,000 RPM, depending
on the setting I set for B5-90. I will set this to 50 hertz. Next is B5-92 for EZ sleep
level. When the drive’s output goes below the set level in this parameter, the drive
will go to sleep. The parameter will display 51 hertz since I had put 50 hertz as my value
for B5-91. I can also adjust the time of how long the drive will go to sleep in parameter
B5-93. The next parameter is the EZ wake up level. This wakes up the drive when the PID
feedback level drops below the set point. I will change this to 40 CFM. When the PID
feedback goes below this level, the drive will wake up and reach the set speed and the
PID set point. The drive will maintain this level until the speed of the drive reaches
the minimum speed and goes to sleep. Once the drive reaches the desired output frequency
it will wake up again. The wake up mode can be set at B5-95 and a wake up timer can be
set at B5-96. The Yaskawa P1000 AC Drive, along with thousands of other products and
services, are available at galco.com.

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