Timing Diagram Scb-04-01 With Configuration Pr24 - Zander Aachen SCB Serie Betriebsanleitung

Safety Time Control Device

17.3 Timing diagram SCB-04-01 with Configuration Pr24

Table 12 shows the corresponding extract from the configuration table.
Configuration No.
Auto Man.
reset reset
Table 12: Extract from Configuration table SCB-04-01 - Configuration Pr24
Legend : F3: AUX C1 inverted signal for non-time-delayed safe outputs/contacts
F4: AUX C2 inverted signal for time-delayed safe outputs/contacts
Figure 26 shows the timing diagram for Configuration Pr24.
Figure 26: Timing diagram for SCB-04-01 with Configuration Pr24 (Qualitative representation)
t : Activation of the power supply. The C1 and C2 are activated as soon as the device is ready for operation
1
t : Safety circuit I11/I12 is closed. Outputs/contacts are not yet switched
2
t : Pressing the reset button at X1
3
t : All safe outputs/contacts are activated with the falling edge of the reset button and the AUX switches off
4
t : Requirement of the safety function by opening the safety circuit I11/I12
5
t : Outputs O1, O2 switches off immediately (reaction time). C1 switch on
6
t : Safety circuit I11/I12 is closed again before the delay time has elapsed
7
t : Without pressing the reset button at X1, O1 and O2 are reactivated and C1 switch off. The current delay time
8
for 17-8 / 27-28 is stopped and reset. Relay contacts 17-18/27-28 stays activated
t : Request for safety function by opening safety circuit I11/I12
9
t : Outputs O1, O2 switches off immediately (reaction time). C1 switch on
10
t : After the parameterized delay time has elapsed, the relay contacts 17-18/27-28 switch off and C2 switch on
11
t : Safety circuit I11/I12 is closed. Outputs/contacts are not yet switched
12
t : Pressing the reset button at X1
13
t : With the falling edge of the reset button, O1, O2 and 17-18/27-28 switch on and C1 and C2 switch off
14
t : Power supply is switched off. All outputs and relay contacts switch off immediately
15
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Non-delayed
outputs/contacts
Man. reset
with autom.
O1 O2 17/18
re-triggering
24
Delayed
outputs/contacts
27/28 O1 O2 17/18 27/28
AUX Function
Delay type
C1 C2
F3 F4 Off-delay
33