H. ZANDER GmbH & Co. KG • Am Gut Wolf 15 • 52070 Aachen • Deutschland • Tel +49 241 9105010
Fax +49 241 91050138 • [email protected] • www.zander-aachen.de
31
Safety Time Control Device
17 Timing diagrams
17.1 Timing diagram SCB-04 with configuration Pr04
Table 10 shows the corresponding extract from the configuration table.
Table 10: Extract from Configuration table SCB-04 - Configuration Pr04
Legend : F1: AUX C1 serves as immediate output for the time-delayed safe outputs/contacts
F2: AUX C2 serves as fault signaling
Figure 24 shows the timing diagram for Configuration Pr04.
Figure 24: Timing diagram for SCB-04 with Configuration Pr04 (Qualitative representation)
t
1
: Power supply activation
t
2
: Safety circuit I11/I12 is closed
t
3
: Output O1 and C1 are switches on immediately (reaction time)
t
4
: After the parametric delay time has elapsed, output O2 and the relay contacts 17-18/27-28 switches on
t
5
: Requirement of the safety function by opening the safety circuit at I11/I12
t
6
: Outputs O1 and O2, relay contacts 17-18 / 27-28 and C1 switches off without any delay time
t
7
: Safety circuit I11/I12 is closed
t
8
: Output O1 and C1 are switches on immediately (reaction time)
t
9
: After the parametrized delay time has elapsed, output O2 and the relay contacts 17-18/27-28 switches on
t
10
: Power supply is switched off. All outputs and relay contacts switch off immediately
Configuration No.
Non-delayed
outputs/contacts
Delayed
outputs/contacts
AUX Function
Delay type
Auto
reset
Man.
reset
Man. reset
with autom.
re-triggering
O1
O2
17/18 27/28
O1
O2
17/18
27/28
C1
C2
04
F1
F2
On-delay
