Technical Data And Identification Of The Ptc Thermistor Input At Peripheral Boards 2 And 4 - Siemens SINAMICS G180 Installation And Operating Instructions Manual

C.8 Technical data and identification of the PTC thermistor input at peripheral boards 2 and 4
C.8 Technical data and identification of the PTC thermistor input at
peripheral boards 2 and 4
PTC thermistor input - Data
Application
Identification
maximum number of sensors
OK state
Overtemperature message
Short-circuit in the sensor circuit
Measuring circuit load
Voltage in the sensor circuit
Current in the sensor circuit
Voltage for measuring sensor
break
Current for short-circuited sensor
circuit
Response time
Electrical design
Maximum cable length for PTC thermistor sensor circuit:
Cross-section 2.5 mm²
Cross-section 1.5 mm²
Cross-section 0.5 mm²
The PTC input can be used for monitoring motors in hazardous zones. It is not permissible
that the converter itself is installed in a hazardous zone.
The PTC thermistor evaluation function can be deactivated by an internal switch. For this
reason, carry out the test described in section "Testing the PTC thermistor shutdown
function" (Page 47). If the result of the test is negative, contact the Service Center for advice.
Installation and Operating Instructions SINAMICS G180
Operating Instructions, 02/2019, 4BS0751-007
For temperature monitoring of explosion-protected motors, type of protection "In-
creased safety" EX e according to DIN EN 50019 VDE 0170/0171 and "flameproof
enclosure" Ex d according to DIN EN 50018 VDE 0170/0171 as well as normal mo-
tors outside a hazardous zone
EX II (2) G [Ex d] [Ex e] [Ex n]
EX II (2) D [EX tb] [Ex tc]
6 sensors according to DIN VDE 0660 Teil 303
< 1,5 kΩ ... 1,8 kΩ
> 3,2 kΩ ... 3,8 kΩ
< 15 Ω ... 25 Ω
< 5 mW at R = 1,5 kΩ
< 2 V at R = 1,5 kΩ
< 1,5 mA at R = 1,5 kΩ
11,6 V
1,45 mA
≤ 75 ms
Protective separation for 690 V to the other circuits according to EN 50178,
EN 61800-5-1
2 × 500 m
2 × 300 m
2 × 100 m
Technical data
203