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.
2. Use «Up» or «Down» to select the
Acknowledge messages
line.
4 0 0 m b a r 0 8 : 1 5 A M 8 0 ° C
Header
5.5 External DI / AII signal
Menu
Idle signal
DI1.09 ☐
······························
Acknowledge messages
DI1.05 ☐
······························
3. Press the «DOWN» key.
The input
DI
has been selected.
4. Press «Enter».
The display for the currently set input flashes.
5. Select the input DI1.05 with the «Up» or «Down» key.
8 Initial Start-up
8.9 Activating remote acknowledgement
130
Service Manual Controller
SIGMA CONTROL 2 BLOWER ≥ 2.5.3 No.: 901700 10 E
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