Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Reference Manual - Manual (Page 211)

Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011 211
Detailed Drive Operation Chapter 1
On-Off Delay Timers
This feature provides the ability to set two delay timers. Each timer can be set for
an On delay timer or Off delay timer. The On delay timer defines the delay time
between a False to True transition (condition appears) on the output condition
and the corresponding change in state of an input/output. The Off delay timer
defines the delay time between a True to False transition (condition disappears)
on the output condition and the corresponding change in the state of the digital
output. The user-defined on/off delay timer is enabled by setting bit 6 “Delay
Timer” of Par 1000 [UserFunct Enable].
Link a word to [DelTmr x TrigData] to control the on or off delay timer. The bit
within the selected word that will control the delay timer is set by [DelTmr x Trig
Bit]. A positive value set in [DelTmr x TrigBit] selects an On delay timer and a
negative value selects an Off delay timer. The status of the user-defined on or off
delay timer is displayed in [DelayTimer
xStats].
Voltage Class PowerFlex drives are sometimes referred to by voltage “class.” This class identifies
the general input voltage to the drive. This general voltage includes a range of
actual voltages. For example, a 400V class drive will have an input voltage range of
380…480VAC. While the hardware remains the same for each class, other
variables, such as factory defaults and power unit ratings will change. In most
cases, all drives within a voltage class can be reprogrammed to another drive in the
class by using parameter 403 [Voltage Class] to reset a drive to a different setup
within the voltage class range.
As an example, consider a 480V drive. This drive comes with factory default
values of 480V, 60 Hz with motor data defaulted for U.S. motors (Hp rated, 1750
rpm, etc.) By setting the [Voltage Class] parameter to “Low Voltage” (this
represents 400V in this case) the defaults are changed to 400V, 50 Hz settings
with motor data for European motors (kW rated, 1500 rpm, etc.).
Delay
Timer 1
1112
0
1
2
DelayTimer1Accum
Timer Enabled
Timer Timing
Timer Done
1111
DelayTimer1PrSet
DelTmr1 TrigData
DelTmr1 TrigBit
1110
1108
1109
DelayTimer1Stats
On
Delay
Off
Delay
Timer did not reach On
delay time
On
Delay
Timer did not reach Off
delay time
Off
Delay
Data
Status
Bit
Digital
Out
Bit