M
ULTI
-S
OURCE
S
YSTEM BASED ON
S
YSTEM
7001RC
Multi-Source Function System 7001RC - V02.01
13 / 31
hopf
Elektronik GmbH
Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: [email protected]
2.1.3 System Behaviour on Automatic Source Changeover
Primary
Source
Status
Secondary
Source Status
System Condition
synchronous synchronous System is synchronised by the
primary source
.
synchronous not
synchronous System is synchronised by the
primary source
.
not
synchronous
synchronous
System is synchronised by the
secondary source
.
not
synchronous
not synchronous System is not synchronised and runs in
internal
quartz base
mode
The sync. source leaps to the primary source
2.1.4 Example of System Behaviour on Changing Status of the Sync.
Sources
Status System
No.
Actions on the
system
Prim.
source
Sec.
source
System
Status
Selected
sync. source
Time base of
system time
Comments
1
Switch on
- - -
Primary
source
Internal
quartz base
System was without power for 3
days; System operates with system
quartz time; All time and date
information begin with zeros in all
positions
2
Manual setting of a
valid time / date
- -
C
Primary
source
Internal
quartz base
System operates with valid time
The set time is continued with the
internal quartz base
3
Primary source
connection with
valid time
information
(synchronous)
R
-
C
Primary
source
Internal
quartz base
Primary source is synchronised
(duration: approx. 3-5 min.)
4
R
-
r
Primary
source
Primary
source
System starts with synchronisation
to the primary source (duration:
approx. 2-3 min.)
Time leap possible on
synchronisation
5
R
-
R
Primary
source
Primary
source
After one minute system status
goes to synchronisation with control
of the internal quartz base
6
Secondary source
connection with
valid time
information
(primary source
continues
synchronous)
R R R
Primary
source
Primary
source
Secondary source is synchronised
(duration: approx. 3-5 min.)
7
Primary source
failure
(secondary source
continues
synchronous)
-
R R
Primary
source
Internal
quartz base
Primary source failure detection;
System status is maintained in
"sync." by means of "sync. status
change after sync fail” timer.
System operates with internal
quartz base
