4. Press the «Enter» key.
The threshold is selected and activated.
Result In the above example the switching point for
p1 has been set and is active. If the pressure is
reached or exceeded and remains longer than the set time delay
td, the message is triggered with
the set message type and the set output
DOR is switched. If the pressure falls below the threshold
SP + switching differential SD, the message and output are reset. The switching behaviour is inver‐
ted by setting "-" of
Logic parameter.
The settings for the other measured values are carried out in the same manner.
8.9 Activating remote acknowledgement
When fault or warning messages are routed to a remote control centre via an output it makes
sense to have these messages acknowledged by the control centre.
Acknowledging the message without correcting the cause, however, can lead to machine
damage.
Safety-relevant "EMERGENCY STOP control device" and "Mains contactor feedback" mes‐
sages cannot be acknowledged remotely.
The following conditions must be fulfilled:
■ The "Remote acknowledgement" function is activated.
■ The remote control is activated
CAUTION
Machine damage can result from acknowledging a fault message without remedying its
cause!
➤ Find the failure cause.
DANGER
Risk of injury due to sudden machine start.
➤ If the controller is in ON/FAULT operating mode when Remote acknowledgement is ac‐
tive, it must be assumed that, an any time, a remote acknowledgement may switch the
machine to ON and the blower motor is started. See chapter 5.8.
8.9.1 Setting the remote acknowledgement function
Precondition Electric connection via DI 1.045– terminal -X15: 7+8 is made
Access level 2 is activated.
The operating mode is displayed.
1. Open the 5.5
<Configuration – External DI / AII signal> menu.
8
Initial Start-up
8.9
Activating remote acknowledgement
132
Service Manual Controller
SIGMA CONTROL 2 BLOWER ≥ 4.0.X
No.: 901700 14 E
