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Figure 7: Supply power wiring (24 VAC transformer)

Table 3: Power source connection detail

Callout

Description

1

Brown wire (COM)

2

Orange wire (24 VAC)

3

Wires from Johnson Controls 24 VAC, Class Power

Transformer

Connecting input and output terminals

The SNC25151-0x/x supports up to 40 hard-wired onboard I/O points, 25 inputs and 15 outputs.. The SNC1612x supports

up to 28 hard-wired onboard I/O points, 16 inputs and 12 outputs.

Table 4: Onboard I/O points

SNC

Total I/O

Universal

Inputs (UI)

Binary Inputs

(BI)

Configurable

Outputs (CO)

Analog

Outputs

(AO)

Binary

Outputs (BO)

SNC25151-0x/x 40

14

11

4

4

7

SNC16121-0x

28

10

6

4

4

4

Note: 

The SNC has two sets of 24+ and common

terminal block connections amongst the output

pins (Label numbers 19, 20 and 25, 26). The 24 V

connection (Label numbers 20 and 26) is the same as

the 24V~ HOT connection (Label number 02) and the

COM connections (Label numbers 19 and 25) are the

same as the 24VAC~ COM connection (Label number

01). These extra power connections can be used to

jumper power for switched high (externally sourced)

or switched low (externally sourced) Triac loads.

Table 5: Input and output terminals

Type of Point

Options

Universal Inputs

• Voltage Analog inputs (0-10 VDC)

• Current Analog inputs (4-20 mA)

• Resistive Analog inputs (0-2k Ohm)

- RTD: 1k Nickel, 1k Platinum, or A99B SI

- NTC: 10k Type L or 2.225k Type 2

• Dry contact Binary inputs

Binary Inputs

• Dry contact maintained

• Pulse counter mode (100 Hz)

Configurable

Outputs

• Voltage Analog outputs (0-10 VDC)

• Binary Outputs (24 VAC Rated Triac)

Analog Outputs

• Voltage Analog outputs (0-10 VDC)

• Current Analog outputs (4-20 mA)

Binary Outputs

24 VAC Rated Triac

Terminal functions, ratings, requirements, and wiring guidelines

F4-SNC Installation Guide

7

Содержание F4-SNC

Страница 1: ...an navigate the display using the direction arrows back OK and menu buttons The F4 SNC25151 0x x models have a total of 40 I O points with 25 inputs and 15 outputs The F4 SNC16121 0x models have a total of 28 I O points with 16 inputs and 12 outputs The first two numbers of the product code number represent the number of inputs SNC25151 0x x and the next two numbers represent the number of outputs...

Страница 2: ...e There is one micro USB port that is reserved for future use 7 Sensor Actuator SA Bus port RJ12 6 Pin Modular Jack Table 1 Physical features of the SNC25151 0x and SNC16121 0x Callout Physical features 8 Field Controller FC Bus port RJ12 6 pin Modular Jack 9 Field Controller FC Bus removable terminal block blue terminal See FC Bus terminal block for more information 10 End of Line EOL switch 11 S...

Страница 3: ...rth America M4 screws Europe DIN rail option 20 3 cm 8 in DIN rail for DIN rail mount applications only Mounting Location considerations Follow these guidelines when you mount an SNC Ensure that the mounting surface can support the SNC and any user supplied enclosure Mount the SNC in the proper orientation horizontal preferred vertical acceptable Mount the SNC on an even surface in wall mount appl...

Страница 4: ...appropriate rating The minimum input voltage for the SNC to operate properly is 20 VAC Use a dedicated power supply to the SNC only Do not connect any other loads to the power supply Additional loads may cause noise interference Outputs should be powered from a separate source when not using internal power Ethernet port The Ethernet port is an 8 pin RJ45 network port used to connect the SNC to Eth...

Страница 5: ...quipement la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires Veiller dans ce cas à intégrer de façon permanente d autres dispositifs tels que des systèmes de supervision ou d alarme ou des dispositifs de sécurité ou de limitation ayant une fonction d avertissement ou de protection en cas de défaillance ou de dysfonctionnement du SNC Important Do not ap...

Страница 6: ... RJ12 6 position modular jack that provides a connection for the MAP or other SA Bus devices with RJ12 plugs The Sensor port is connected internally to the SA Bus terminal block See Communications Bus and supply terminal blocks functions ratings requirements and cables for more information The SA Bus port pin assignment is shown in Figure 4 and Table 2 Connecting to the SA Bus terminal 1 Connect t...

Страница 7: ...onnection Label numbers 20 and 26 is the same as the 24V HOT connection Label number 02 and the COM connections Label numbers 19 and 25 are the same as the 24VAC COM connection Label number 01 These extra power connections can be used to jumper power for switched high externally sourced or switched low externally sourced Triac loads Table 5 Input and output terminals Type of Point Options Universa...

Страница 8: ...delines Table 6 Terminal wiring Terminal block label Terminal labels Function ratings and requirements Determine wire size and maximum cable length 15 V 15 VDC Power Source for active 3 wire input devices connected to the Universal UI terminals Provides 100 mA total current Same as Universal inputs UI Note Use a 3 wire cable for devices that source power from the 15 V terminal Analog Input Voltage...

Страница 9: ...res an external load of 1 000 Ohms or more Note The AO operates in Voltage Mode when connected to devices with impedances greater than 1 000 Ohms Devices that drop below 1 000 Ohms may not operate as intended for Voltage Mode applications See Guideline C in Table 7 AO Analog Output Current Mode 4 20 mA Requires an external load between 0 300 Ohms Note The AO operates in Current Mode when connected...

Страница 10: ...ires an external load of 1000 Ohms or more See Guideline A in Table 7 CO Binary Output 24 VAC Triac External Power Source only Connects CO to CO C when activated External Power Source 30 VAC maximum voltage to load 0 5 A maximum output current 1 3 A at 25 duty cycle Maximum 6 cycles hour with M9220 BGx 3 40 mA minimum load current See Guideline C in Table 7 CONFIGURABLE Outputs CO C Analog Output ...

Страница 11: ...ed wire cable N A Maximum cable length versus load current In most cases inputs outputs with cables less than 30 m 100 ft do not require an offset in the software setup Cable runs over 30 m 100 ft may require an offset in the input output software setup Use Figure 8 to estimate the maximum cable length relative to the wire size and the load current in mA when wiring inputs and outputs Figure 8 Max...

Страница 12: ...mon Isolated from all other Common terminals on controller 0 8 mm to 1 5 mm 20 to 16 AWG 2 wire Note See Table 7 to determine wire size and cable lengths for cables other than the recommended cables FC Bus and SA Bus and supply power wiring guidelines Table 8 provides information about the functions ratings and requirements for the SNC communication bus and supply power terminals and guidelines fo...

Страница 13: ...nput output Termination diagrams Temperature Sensor UI Voltage Input External Source UI Voltage Input Internal Source UI Voltage Input self powered UI Current Input External Source isolated UI Current Input Internal Source 2 wire UI F4 SNC Installation Guide 13 ...

Страница 14: ...Current Input Internal Source 3 wire UI Current Input External Source in loop UI Feedback from EPP 1000 UI Dry Contact binary input UI or BI 0 10 VDC Output to Actuator external source CO or AO 0 10 VDC Output to Actuator internal source CO or AO Current Output AO F4 SNC Installation Guide 14 ...

Страница 15: ...utput switch high internally sourced Triac BO or CO 24 VAC Triac output switch low external source BO or CO Incremental control to actuator switch high internally sourced Triac BO Incremental control to actuator switch low internally sourced Triac BO Network Stat with Phone Jack Fixed Address 199 SA Bus F4 SNC Installation Guide 15 ...

Страница 16: ...he Site Configuration Tool SCT as needed The default state creates I O points for all connections on the input and output terminals It assumes all Universal Inputs UIs are Nickel temperature sensors All Configurable Outputs COs are treated as Binary Outputs BOs with an initial value of 0 The default state also takes input from a Network Sensor at address 199 If there is no connected Network Sensor...

Страница 17: ...In this scenario the capacitor can deplete enough so that it no longer functions A fully depleted capacitor can take up to 90 minutes to recharge after the SNC is plugged into its power source Rotary switch dials The SNC has 3 rotary switch dials labeled Controller Number for setting the controller number which can be numbered from 000 to 999 The switches are shipped from the factory set to 000 Yo...

Страница 18: ...mitting only Flashing 1 blink per second 1 Hz indicates communication activity Off No devices are communicating or no controllers have been configured to work with this bus FC BUS Green On Controllers have been defined but none are communicating network engine transmitting only Flickering Data is transferring on the Ethernet connection ETH 1 and ETH 2 Green Off No communications Flashing Flash gre...

Страница 19: ...the button The actions taken are as follows First press odd numbered The SNC resets and restores the factory default settings on the active partition Second press even numbered The SNC resets and makes the opposite partition the currently active partition with the factory default settings Any staged configuration files are lost If the SNC has never been imaged with a release other than the shipped...

Страница 20: ... B has Rel 11 0 0 7212 Press button 7th time Active Inactive Partition A has Rel 11 0 0 7212 Partition B has Rel 11 0 0 7212 Wiring considerations and guidelines Table 12 Ethernet network rules Category Allowed maximums and rules General Star topology with network switches 2 000 m 6 600 ft for plastic or glass fiber optic with external adapter Line length and type 1000 BaseT 100 m 330 ft CAT5E cab...

Страница 21: ...365 m 1 198 ft maximum bus length 152 m 500 ft maximum between an NS network sensor and the bus supervisor SNC supplying power to the sensor using bus cable connected to the SA Bus screw terminal blocks 30 m 98 ft maximum length for network sensors using bus cables connected to the 6 pin modular jack 6 Pin SA Bus port Cable length for SA Bus 366 m 1 198 ft maximum Bus Length Recommended bus cable ...

Страница 22: ...ggable terminal blocks Site Management Portal SMP UI Wind River Linux Operating System Three mounting clips for direct screw mounting or for DIN Rail mounting Table 17 SNC model features F4 SNC25151 0x x F4 SNC25151 0 F4 SNC16121 0 F4 SNC16121 04 Integral Equipment Controller 40 Integral I O points 25 inputs 15 outputs 14 UI 11 BI 4 AO 7 BO 4 CO 40 Integral I O points 25 inputs 15 outputs 14 UI 11...

Страница 23: ...air information If the SNC fails to operate within its specifications replace it The SNC is not a serviceable product however it does support software updates to enable feature enhancements For a replacement unit software updates or accessories contact your local Johnson Controls representative Do not open the SNC housing The SNC has no user serviceable parts inside and does not require periodic f...

Страница 24: ...re conditions Operating 0 C to 50 C 32 F to 122 F Non operating 40 C to 70 C 40 F to 158 F Ambient humidity conditions Storage 5 to 95 RH 30 C 86 F maximum dew point conditions Operating 0 to 90 RH 30 C 86 F maximum dew point conditions Housing Black Polycarbonate and Acrylonitrile butadiene styrene ABS blend Mounting On flat surface with screws on three mounting clips or a single 35 mm DIN rail D...

Страница 25: ... 10 Mbps 8 pin RJ45 connector One FC port RJ12 6 pin port connects with 1 5 m 4 9 ft RJ12 field bus cable One SA port RJ12 6 pin port connects with 1 5 m 4 9 ft RJ12 field bus cable One optically isolated RS 485 port with a removable 4 pin terminal block One magnetically isolated FC Bus port with a removable 4 pin terminal block One SA Bus port with a removable 4 pin terminal block Two USB A ports...

Страница 26: ...ordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area may cause harmful interference in which case the users will be required to correct the interference at their own expense Canada This Class A digital apparatus meets all the requirements of the Canadian Interference Causing Equipment Regulations Cet appareil n...

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