Controlled by digital input – Rockwell Automation 20A PowerFlex 70EC/700VC User Manual
Page 39
Digital Outputs
35
Level] is degrees C. No units will be displayed on HIMs, offline tools, devices
communicating over a network, PLC’s, etc.
The minimum and maximum value for [Dig Outx Level] is independent of the
selection for [Dig Outx Sel].
The following values can be annunciated
3.
Controlled by Digital Input
A digital output can be “linked” directly to a digital input. When the input is
closed, the output will be energized, and when the input is open, the output will
be de-energized. This “linking” will occur if two conditions exist:
– The Input is configured for any choice other than “Unused”
– The Output is configured for the appropriate “Input x Link”
Note that the output will be controlled by the state of the input, even if the input
has been assigned a normal function (e.g. Start, Jog)
. This selection provides a way to connect the
input to the output without the output being used for another function. Note: the
output still must be set for “Input x Link.”
Digital Output Timers
Each digital output has two programmable timers.
The “On Time” specifies the delay between the appearance of the programmed
condition and the corresponding digital output change of state.
The “Off Time” specifies the delay between the appearance of the programmed
condition and the corresponding digital output change of state.
If a transition on an output condition occurs and starts a timer, and the output
condition goes back to its original state before the timer runs out, then the timer
will be aborted and the corresponding digital output will not change state.
Value
Description
At Freq
The drive output frequency equals or exceeds the programmed Limit
At Current
The drive total output current exceeds the programmed Limit
At Speed
The drive Output Frequency has equalled the commanded frequency
At Torque
The drive output torque current component exceeds the programmed Limit
At Temp
The drive operating temperature exceeds the programmed Limit
At Bus Volts
The drive bus voltage exceeds the programmed Limit
At PI Error
The drive Process PI Loop error exceeds the programmed Limit
CR1 On Delay = 2 Seconds
CR1 On Delay = 2 Seconds
0
5
10
0
5
10
Relay Activates
Current Limit Occurs
Relay Does Not Activate
Cyclic Current Limit
(every other second)