Rockwell-automation 1760-xxxx Pico Controller User Manual Manuel d'utilisateur Page 162

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 218
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 161
Publication 1760-UM001D-EN-P - September 2005
7-12 Retention
Single-Pulse Timing Relays, Retentive
Single-pulse timing relays are suitable for metering adhesives, liquids
etc.
Task: A lubricating device is to always dispense the same quantity of
oil.
Contacts and relays used:
Signal diagram:
U = Supply voltage
Range A: In this case, the power is interrupted. When power is
restored, the output stays on for the remaining time.
Range B: The time period expires without interruption.
Coil Function
I1 Start lubrication
Q1 Oil valve
T8 Oil time
30.00
TRG
RES
T8
+
{
S
I1---------TT8
T8---------{Q1
Circuit Diagram:
Parameters entered:
U
I1
T8
t
1
t
2
Q1
t
A
B
t + t = 30s
12
Vue de la page 161
1 2 ... 157 158 159 160 161 162 163 164 165 166 167 ... 217 218

Commentaires sur ces manuels

Pas de commentaire