Clock; Table 2-1 Clock Features - Siemens SIMOTION D4 Series Equipment Manual

Description

2.4 Clock

Caution
This control unit must be operated with a fan/battery module for heat dissipation. Without a
fan/battery module, the control unit will not start up and cannot be commissioned.
2.4 Clock
Features of real-time clock
The following table contains the features and functions of the control unit clock.
Table 2-1
Features
Type
Default setting when delivered
Accuracy
With supply voltage on
0 to 55° C
With supply voltage off
25° C
-20° C to 70° C
Backup time
Charging time
With power OFF
In the power OFF state, the control unit clock continues to run during the the backup time
(with the exception of the software clock). The buffer is recharged in the power ON state.
An error message is output if the backup function is defective. With power ON, the clock
resumes at the time set at the factory.
When the control unit is reset to the factory settings, the clock is also reset to the "factory
default setting."
2-4
Clock features
Meaning
Hardware clock (integrated "realtime clock")
DT#1994-01-01-00:00:00
Max. deviation per day:
±9 s
±2 s
+2 s to -9 s
Typically 5 days (at 0 to 25° C)
1 hr
Manual, 12.2004, 6AU1900-1AJ32-0BA0
D4xx