Vacon 500X, Руководство пользователя

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vacon operation and programming
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and the additional weekend function (Saturday and Sunday), and which parameters can be set for the time
frame.
These TOD enable functions allow the drive to operate unattended for long periods of time and to turn off
equipment when not needed, eliminating the need to remember to shut the equipment off. The drive can
also be operated when power costs are generally lower, adding to the overall efficiency of the application.
Over time, this set of functions can result in substantial savings.
It should be noted that in spite of the automation feature, the drive can be manually overridden (to operate
when not enabled, perhaps for maintenance) by using a suitably programmed digital input. It is also
possible to transmit the information that the drive is being overridden, via one of the digital outputs. Note
that the drive must receive a normal RUN command during the enabled period for it to operate.
5.9.2 Reminders
The Vacon 500x also allows you to set up three reminders, based on real time. While they are
fundamentally time-based, they can be based also on drive run time, or enabled or “gated” time.
Reminders can be helpful for maintenance technicians or operators.
Gated time is roughly equivalent to a “lap” time if you’re running a race, where time is only counted while
a certain condition is true. That is, while a digital input is active, the timer is gating. If it is no longer active,
gating stops.
When a reminder has timed out, a digital output can be activated to warn the operator or maintenance
technician that a certain action must be taken, such as regular maintenance or cycling of some element in
the process.
A reminder’s time-out can also be monitored from the keypad (through the ETA parameters: 173 , 176 , 179
on page 65) and reset remotely, again through a digital input.
The parameters associated with reminder configuration are:
See page 65 for information on how to program digital inputs and outputs to work with reminders.
5.9.3 Timers
The Vacon 500x can also act as a timer. It actually has two timers available (parameters 746 , 749 ). Each
timer can look at any signal normally presented to a digital input and delay its function by a set value (in
seconds). You may also choose to delay the transition in turning off the function--that is, you can configure
a digital output to delay on, delay off, or both, for any function presented normally to a digital input.
This kind of functionality is often critical to coordinating the operation of more than just the motor driven
by the Vacon 500x. You may even be able to eliminate the need for a PLC to control a complete operation,
if you can utilize more of the built-in functionality of the Vacon 500x.
The parameters associated with timer configuration are:
Parameter Number
Enable (Start) Disable (Stop)
Enable Function #1 (Weekday) 152 154
Enable Function #2 (Weekday) 156 158
Enable Function #3 (Weekend) 160 162
Parameter Number
Configuration Time Time to Completion
Reminder #1 171 172 173
Reminder #2 174 175 176
Reminder #3 177 178 179
Parameter Number
Timer Type Timer Signal Timer “Time”