Siemens SINUMERIK Commissioning Manual page 690

Configuring the system
2.4 PCU 50.3 with SITOP UPS module
"Fixed buffer time" mode
In this mode, the UPS module always buffers for the pre-selected, fixed period of time. It is
not possible to synchronize the UPS module with the operating system shutdown.
Required settings on the UPS module
10
50
On - Off
1 +2V
2 +1V
3 +0.5V
4 +1V
5 +1V
6 +0.5V
7 +0.2V
8 +0.2V
9 +0.1V
0.35A / 0.7A
On - Off
1
2 +320 s
3 +160 s
4 +80s
5 +40 s
6 +20 s
7 +10 s
8
9
Legend:
Cut-in threshold
+22V (fixed)
∘
∘
End-of-charge voltage
+ 26.3V fixed
Charging current
Set time/max. time
∘
∘
Buffer time
+5 s fixed
Disconnection
Accumulator operating state on/off
Delivery condition setting
Setting for operation on the PCU 50
Commissioning Manual, 03/2009, 6FC5397-1DP10-4BA0
PCU-Basesoftware (IM8)