Power supply | |
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Operating voltage | AC 24 V ±20 %; DC 24 V ±10 % |
Frequency | 45…65 Hz |
Max. AC-Current consumption | 600 mA at AC 24 V |
Max. DC-Current consumption | 340 mA at DC 24 V |
Connection | Peripheral bus |
Power distribution | |
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Max. pass through current | 3.4 A at AC 24V 3.66 A at DC 24 V |
Relay outputs Q1...Q3 (with high inrush capacity) | |
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Relay: type, contact | Monostable, NO contact |
Contact ratings |
|
Switching voltage | AC 24…230 V (-20 %, +10 %) |
Nominal current (res. / ind.) | AC 4 A / 1 A (cosφ ≥ 0.6) |
Inrush current | Max. 80 A / max. 100 µs |
External overcurrent protection | Fuse slow max. 10 A or Circuit breaker max. 13 A |
Operations | Min. 10,000 |
Minimum switching load | 30 mA / 19 V respectively 10 mA / 200 V |
Connecting Circulator Pumps to relay output |
Relay output Q4 (T4) | |
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Relay: type, contact | Monostable, NO contact |
Contact rating |
|
Switching voltage | AC 24…230 V (-20 %, +10 %) |
Nominal current (res. / ind.) | AC 4 A / 1 A (cosφ ≥ 0.6) |
Inrush current | Max. 10 A / max. 10 ms |
External overcurrent protection | Fuse slow max. 10 A or Circuit breaker max. 13 A |
Operations | Min. 10,000 |
Minimum switching load | 30 mA / 19 V respectively 10 mA / 200 V |
Connecting indicator lamps to relay output |
Universal I/Os X1…X8 | |
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Configurable | By software |
Reference potential | Terminals ┴ |
Contact voltage | Max. DC 24 V (SELV) |
Over voltage protection | Up to 40 V |
Analog inputs (X1…X8) | ||
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Ni1000 | ||
Sensor current | 1.4 mA | |
Resolution | 0.1 K | |
Accuracy within the range -50…150 °C | 0.5 K | |
Pt1000 | ||
Sensor current | 1.8 mA | |
Resolution | 0.1 K | |
Accuracy within the range -50…150 °C | 0.5 K | |
NTC 10k (B25/85 = 3977K) | ||
Sensor current | 140 μA | |
Temperature range | Accuracy | Resolution |
-50…-26 °C | 1 K | 0.2 K |
-25…74 °C | 0.5 K | 0.1 K |
75…99 °C | 1 K | 0.3 K |
100…124 °C | 3 K | 1.0 K |
125…150 °C | 6 K | 2.5 K |
NTC 100k (B25/85 = 3977K) | ||
Sensor current | 140 μA | |
Temperature range | Accuracy | Resolution |
-25…-11 °C | 3 K | 0.2 K |
-10…9 °C | 1 K | 0.1 K |
10…99 °C | 0.5 K | 0.1 K |
100…150 °C | 1 K | 0.2 K |
0...2,500 Ω | ||
Sensor current | 1.8 mA | |
Resolution | 1 Ω | |
Accuracy | 4 Ω |
Connecting a ratiometric sensor to universal I/Os Connecting NTC to universal I/Os |
Analog inputs (X1…X8) | |
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DC 0...10 V input | |
Resolution | 1 mV |
Accuracy at 0 V | 2 mV |
Accuracy at 5 V | 25 mV |
Accuracy at 10 V | 50 mV |
Input resistance | 100 kΩ |
DC 0/4…20 mA input | |
Resolution | 1 μA |
Accuracy at 4 V | 25 μA |
Accuracy at 12 V | 70 μA |
Accuracy at 20 V | 120 μA |
Impedance of DC 0/4…20 mA input | Typ. 450 Ω |
Voltage input DC 0…10 V Current input 4…20 mA |
Digital inputs (X1…X8) | |
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0/1 digital signal (binary) | For potential-free contacts |
Sampling voltage / current | DC 24 V / 8 mA |
Contact resistance | Max. 200 Ω (closed) Min. 50 kΩ (open) |
Delay | 10 ms |
Pulse frequency | Max. 30 Hz |
Connecting floating contacts to universal I/O |
Analog outputs (X1…X8) | |
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DC 0...10 V output | |
Resolution | 11 mV |
Accuracy at 0 V | 66 mV |
Accuracy at 5 V | 95 mV |
Accuracy at 10 V | 124 mV |
Output current | 1 mA (short-circuit-proof) |
DC 4…20 mA output | |
Resolution | 22 μA |
Accuracy at 4 V | 150 μA |
Accuracy at 12 V | 196 μA |
Accuracy at 20 V | 243 μA |
Connecting voltage output and current output to universal I/O |
Analog outputs Y1...Y2 | |
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DC 0…10 V output | |
Resolution | 11 mV |
Accuracy at 0 V | 66 mV |
Accuracy at 5 V | 95 mV |
Accuracy at 10 V | 124 mV |
Output current | 1 mA |
Connecting voltage output and offboard relays to analog output |
Connection terminals | |
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Optional plugs for IO signals | Phoenix FKCVW 2,5 / x-ST Phoenix FKCT 2,5 / x-ST Phoenix MVSTBW 2,5 / x-ST |
Solid wire | 0.5…2.5 mm² |
Stranded wire (twisted and with ferrule) | 0.5…1.5 mm² |
Cable lengths | In compliance with load, local regulations and installation documents |
Peripheral bus | |
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Power supply | Ueff = AC 24 V ±20 %, fmain = 45...65 Hz |
Bus termination selectable | (680 Ω / 120 Ω +1 nF / 680 Ω ) |
Solid wire | 0.2…1.0 mm² |
Stranded wire (twisted and with ferrule) | 0.2…1.0 mm² |
Cable lengths | Max. 30 m |
Addressing | DIP switch 1…5 |
Termination | DIP switch 6 |
Ambient conditions and protection classification | |
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Operation | IEC 60721-3-3 class 3K5 |
Temperature | -40...70 °C |
Humidity | <90 % r.h. (non-condensing) |
Atmospheric pressure | Min. 700 hPa, corresponding to max. 3,000 m above sea level |
Transport | IEC 60721-3-2 class 2K3/2K4 |
Temperature | -40...70 °C |
Humidity | <95 % r.h. (non-condensing) |
Atmospheric pressure | Min. 260 hPa, corresponding to max. 10,000 m above sea level |
Protection | |
Degree of protection | IP20 (EN 60529) |
Safety class | Suitable for use in plants with safety class II |
Standards, directives and approvals | |
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Product standard | EN 60730-1 Automatic electronic controls for household and similar use. |
Electromagnetic compatibility (applications) | For use in residential, commerce, light-industrial and industrial environments. |
EU conformity (CE) | CB1T3920xx *) |
RCM conformity | CB1T3909en_C1 |
Listings | UL916, UL873 http://database.ul.com/ CSA Class 4812 http://www.csagroup.org |
Environmental compatibility | The product environmental declaration CB1E3920en contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal). |
*) The document can be downloaded from http://siemens.com/bt/download.
General Data | |
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Dimensions of controller | 108 x 110 x 75 mm |
Weight excl. packaging | 183.5 g |
Base | Plastic, pigeon-blue RAL 5014 |
Housing | Plastic, light-grey RAL 7035 |
Status of LEDs
The status of BSP LED is defined as follows:
Status | Meaning |
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Red flashing at 2 Hz | BSP error or address error |
Green on | BSP running |
The status of BUS LED is defined as follows:
Status | Meaning |
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Red on | Communication error |
Green on | Communication running |
Orange on | Communication running but parameter not successfully configured |
DIP switch
The extension module is equipped with DIP switch to communicate with the controller. Switch 1, 2, 3, 4, and 5 are configurable to set the address, while switch 6 serves as peripheral bus termination. If the extension module works as the termination in the network, switch 6 must be set to ON.
The order of bit is from 5 to 1. The lowest bit is 5 while the highest bit is 1. Max. 31 addresses can be configured as follows:
DIP Switch configuration of Extension Module | |||||||
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No. | Schematics | No. | Schematics | No. | Switch 5 | No. | Schematics |
1 | 9 | 17 | 25 | ||||
2 | 10 | 18 | 26 | ||||
3 | 11 | 19 | 27 | ||||
4 | 12 | 20 | 28 | ||||
5 | 13 | 21 | 29 | ||||
6 | 14 | 22 | 30 | ||||
7 | 15 | 23 | 31 | ||||
8 | 16 | 24 |
|
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The same address of extension module must be set respectively in the application program of the controller. 0 cannot be set as the address.