Siemens Plant Central Clock TC100 - Manual (Page 98)

13-9  © Siemens AG 2010 All Rights Reserved
Operating Instructions SICLOCK ® TC100
Technical data
13
Table 13-1 SICLOCK TC100, technical data
Dimensions 180.0 x 88.9 x 47.0 (W x H x D in mm)
Weight approx. 750 g
Supply voltage 24 VDC (-15% to +20%) at X1
Power supply continuous current 0.7 A max.
Transient voltage interruption 3 ms (at 20.4 to 28.8 V) max.
Power consumption 15 W max.
Power loss typically 7.5 W
External fuse 1 A slow-action
Degree of protection IP 20
Mounting type 35 mm standard mounting rail
EN 50022-35 mounting rail (15 mm high) or
SIMATIC DIN rail
Safety
Product standard EN 61131-2 (environment)
Test voltage Circuits with nominal voltage Ue <50 V relative to other circuits or
ground, test voltage 500 VDC:
Protection class Protection class III according to EN 60536
Electrical safety EN 60950-1
Time of day characteristics
Accuracy in relation to
GPS signal < 50 µs
Accuracy in relation to
DCF77 signal < 1000 µs
Accuracy in case of loss of
GPS signal < 50x10
-9
Accuracy in case of loss of
DCF77 signal < 1x10 -6
Accuracy in case of power
failure < 4x10 -6
Time-of-day correction by
microsteps < 50 µs/s
Jitter in GPS operation < 200 ns/s
Reserve power See battery