Siemens SINAMICS G120 Operating Instructions Manual page 387

Feature
Encoder input
Temperature sensor
Fail-safe digital input
PFH
USB interface
Dimensions (WxHxD)
Weight
Memory cards
Operating temperature
Storage temperature
Relative humidity
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
Data
HTL, TTL 500 kHz maximum input frequency
SSI 1 MHz maximum baud rate. The dependency on baud rate and
cable length is shown in the diagram below.
Resolver
•
•
•
The impedances that can be connected and the maximum speed
that can be evaluated are listed below.
PTC
•
•
KTY84
•
•
Temperature switch isolated contact.
1 (DI 4 and DI 5)
•
•
•
The data of the extended functions of the safety functions can be found in the Safety
Integrated Function Manual, see also Section: Manuals for your converter (Page 461).
5 × 10E-8 Probability of failure of the safety functions (Probability of Failure
per Hour)
Mini-B
73 mm × 199 mm × 63 mm
0.49 kg
Slot for SD or MMC memory cards, also see Section: Overview of Control Units
(Page 24).
0° C ... 50° C
Observe any possible restrictions regarding the operating temperature as a result of the
Power Module.
- 40° C ... 70° C
< 95 %
12.1 Technical data, CU250S-2 Control Unit
Ratio ü = 0.3 ... 0.7
It is always possible to use resolvers with lower or higher ratios.
Ratios ü < 0.3 or ü > 0.7 reduce the accuracy of the speed
sensing and the resolution of the position actual value.
1.8 V excitation voltage for ü = 0.5
rms
8 kHz excitation frequency, synchronized to the current
controller clock cycle
Short-circuit monitoring 22 Ω
Switching threshold 1650 Ω
Short-circuit monitoring < 50 Ω
Wire break > 2120 Ω
If you have enabled the basic safety functions, DI 4 and DI 5
form the fail-safe digital input.
Maximum input voltage 30 V, 5.5 mA
Response time:
– Typical: 5 ms + debounce time p9651
– Typical, if debounce time = 0: 6 ms
– Worst-case scenario: 15 ms + debounce time
– Worst case, if debounce time = 0: 16 ms
The depth specification is valid when mounting on the
Power Module.
Condensation is not permissible.
Technical data
387