Raychem NGC-40-BRIDGE Control and Monitoring Modules
Control and Monitoring Modules for use with the Raychem NGC-40 System Installation Instructions
DESCRIPTION
The Raychem NGC-40-BRIDGE module provides the interface between a panel’s internal CAN-based network and upstream devices. Multiple communications ports are supported, allowing serial and Ethernet connections to be used with external devices.
TOOLS REQUIRED
- Small flat-blade screwdriver
ADDITIONAL MATERIALS
- Power supply 24 Vdc @150 mA per NGC-40-BRIDGE
- Custom built CAN cables with RJ-45 connections
KIT CONTENTS
| Item | Qty | Description | |
| A | 1 | NGC-40-BRIDGE module | |
| B | 2 | CAN bus termination block | PTM# 10392-043 |
| C | 2 | RS-485 termination resistors | 120 Ω – 1% – 1/4 watt |
| D | 1 | NGC-40-BRIDGE serial cable | TTC# 10332-005 |
Special conditions of use:
- The overall equipment is evaluated to type of protection “ec”
- For full connection details see these installation instructions
- The equipment shall only be used in an area of not more than pollution degree 2, as defined in IEC/EN 60664-1
- The equipment shall be installed an enclosure that provides a minimum ingress protection of IP54 in accordance with IEC/EN 60079-0
- Transient protection shall be provided that is set at a level not exceeding 140% of the peak rated voltage value at the supply terminals to the equipment
WARNING:
This component is an electrical device that must be installed correctly to ensure proper operation and to prevent shock or fire. For technical support, call Chemelex at 800-545-6258.
GENERAL
| Supply voltage | 24 Vdc ± 10% |
| Internal power consumption | <3.6 W per NGC-40-BRIDGE |
| Ambient operating temperature | –40°C to 65°C (–40°F to 149°F) |
| Ambient storage temperature | –55°C to 75°C (–67°F to 167°F) |
| Environment | PD2, CAT III |
| Max. altitude | 2,000 m (6,562 ft) |
| Humidity | 5 – 90% noncondensing |
| Mounting | Din Rail – 35 mm |
ELECTROMAGNETIC COMPATIBILITY
| Emissions | EN 61000-6-3 Emission standard for residential, commercial and light industrial environments |
| Immunity | EN 61000-6-2 Immunity standard for industrial environments |
COMMUNICATIONS COM1, COM2
| Type | 2-wire RS-485 |
| Cable | One shielded twisted pair |
| Length | 1,200 m (4,000 ft) maximum |
| Quantity | Up to 255 devices per port |
| Data rate | 9600, 19.2 K, 38.4 K, 57.6 K, 115.2 K baud |
| Data bits | 7 or 8 |
| Parity | None, even, odd |
| Stop bits | 0, 1, 2 |
| Tx delay | 0 – 5 sec. |
| Protocol | Modbus RTU or ASCII |
| Connection terminals | Wago cage clamp terminals |
COMMUNICATIONS COM3
| Type | RS-232 |
| Cable | Custom TTC# 10332-005 |
| Length | 15 m (50 ft) maximum |
| Data rate | 9600, 19.2 K, 38.4 K, 57.6 K, 115.2 K baud |
| Data bits | 7 or 8 |
| Parity | None, even, odd |
| Stop bits | 0, 1, 2 |
| Tx delay | 0 – 5 sec. |
| Protocol | Modbus RTU or ASCII |
| Connection terminals | RJ-11 |
CAN NETWORKING PORT
| Type | 2-wire isolated CAN-based peer-peer network. Isolated to 300 V. |
| Connection | Two 8-pin RJ-45 connectors (both may be used for Input or Output connections) |
| Protocol | Proprietary NGC-40 |
| Topology | Daisy chain |
| Length | 10 m (33 ft) maximum |
| Quantity | Up to 80 CAN nodes per network segment |
| Address | Unique, factory assigned |
ETHERNET
| Type | 10/100 BaseT Ethernet network |
| Length | 100 m (328 ft) |
| Data rates | 10 or 100 MB/s |
| Protocol | Modbus/TCP |
| Connection terminals | Shielded 8-pin RJ-45 connector on front of module |
PROGRAMMING AND SETTING
| LED indicators | |
| Alarm conditions | RESET, Configuration lost, CAN communications fail |
| Configuration switch | SET/RUN slide switch on front of module |
CONNECTION TERMINALS
| Wiring terminals | Cage clamp, 0.5 to 2.5 mm² (24 to 12 AWG) |
| CAN networking and module power | Two RJ-45s, one each IN and OUT. Provides CAN bus signals and +24 Vdc power. |
HOUSING
| Size | 45.1 mm (1.78 in) wide x 87 mm (3.43 in) high x 106.4 mm (4.2 in) deep |
System Components
Wiring Terminals
| Terminals | Function |
| 1 | COM 1 (485) + in |
| 2 | COM 1 (485) + out |
| 3 | COM 2 (485) + in |
| 4 | COM 2 (485) + out |
| 5 | COM 1 (485) – in |
| 6 | COM 1 (485) – out |
| 7 | COM 2 (485) – in |
| 8 | COM 2 (485) – out |
| 9 – 12 | Not used |
Status LEDs
| Status: Indicates status of the module | |
| Off | No power |
| Green | OK/Normal |
| Yellow | (flashing) Configuration mode |
| Red | (flashing) Internal fault |
| NETWORK: Indicates CAN network activity | |
| Off | No link detected |
| Green | Link OK, receive data packets |
| Yellow | Transmit data packets |
| Red | (flashing) Network error |
| COM: Indicates COM1 & 2 (RS-485) activity | |
| Off | No activity |
| Green | (flashing) Receipt of data packet |
| Yellow | (flashing) Transmit of data packet |
Communication Slide Switch
RS-232 Port
| Status: Indicates status of RS-232 port | |
| Top LED | |
| Off | No activity |
| Green | (flashing) Receipt of data packet |
| Bottom LED | |
| Off | No activity |
| Yellow | (flashing) Transmit of data packet |
E. Ethernet Port
| Status: Indicates status of the LAN | |
| Top LED | |
| Off | No LAN detected |
| Green | ON, LAN detectedt |
| Bottom LED | |
| Off | No LAN activity |
| Yellow | (flashing) LAN activity (data packet) |
CAN Bus/Module Power
Reset Button
Mounting the NGC-40-BRIDGE
- Each NGC-40-BRIDGE mounts on a DIN 35 rail.
- MOUNTING: Insert the rear bottom of the module into the DIN rail, then push up and inwards to engage the clip.
- REMOVAL: Push the module upwards to disengage the clip, then rotate the module toward you.
RS-485 Connection Diagrams – North American Installation Technique
COM 1&2 Connections (In)
Wiring for Com 1 & Com 2 must be terminated on a panel mounted terminal block. No ground wires should be terminated on terminals 9 & 11. Terminate Com shields at the panel mounted field terminal block chassis ground.
COM 1&2 Connections (Out) and RS-485 Termination Resistor
Wiring for Com 1 & Com 2 must be terminated on a panel mounted terminal block. No ground wires should be terminated on terminals 10 & 12. Terminate Com shields and 120 Ω termination resistors (included) at the panel mounted field terminal block as shown.
RS-485 Connection Diagrams – European Installation Technique
COM 1&2 Connections (In)
Wiring for Com 1 & Com 2 must be terminated on a panel mounted terminal block. No ground wires should be terminated on terminals 9 & 11. Terminate Com shields at the panel mounted field terminal block chassis ground. The Com cable shield from the field terminal block to the Bridge should be terminated at the earth ground bar. 
COM 1&2 Connections (Out) and RS-485 Termination Resistor
Wiring for Com 1 & Com 2 must be terminated on a panel mounted terminal block. No ground wires should be terminated on terminals 10 & 12. Terminate Com shields and 120 Ω termination resistors (included) at the panel mounted field terminal block as shown. The Com cable shield from the field terminal block to the Bridge should be terminated at the earth ground bar.
Local RS-232 (COM 3) & Ethernet
Switch Setting RS-232
User Interface – Configuration Switch
A slide switch is provided on the front of the module to allow the user to set the bridge into a known state for configuration of the communication ports, as shown in the following table:
| Switch Position | ||
| Bridge Module Settings | SET Configuration mode | RUN Normal operating mode |
| Modbus address | 1 | |
| Local RS-232 | ||
| Protocol | RTU | Settings based on the user configuration parameters |
| Data rate | 9600 baud | |
| Data bits | 8 | |
| Stop bits | 2 | |
| Parity | No parity |
RMM2 Connection – Optional
When using the field mounted RMM2 for RTD input, it must be connected to the COM 2 In as shown below.
NGC-40 CAN Bus Connections for Up to 10 Modules
NGC-40 CAN Bus Connections for Up to 20 Modules
CAN Bus Termination Block
A termination block (included) is required at each end of the CAN/24 Vdc bus. See NGC-40 CAN bus connection wiring diagram for more details.
Provide Suitable Panel Enclosure and Determine Locations for NGC-40-BRIDGE Assembly in Panel*
- Provide suitable panel enclosure
The NGC-40-BRIDGE must be mounted in an enclosure to protect its electronic components. For indoor applications, use a minimum NEMA 1 enclosure (NEMA 12 recommended). For outdoor applications, use a NEMA 4 or NEMA 4X enclosure depending on the requirements.
Note: The Raychem NGC-40-BRIDGE is designed for operation in ambient temperatures from –40°C to 65°C (–40°F to 149°F ). If the ambient temperature is outside this range, a space heater and/or cooling fan will be required in the panel. - Determine locations for the NGC-40-BRIDGE assembly in the electrical panel.
The NGC-40-BRIDGE should be located in the rear of the panel. The NGC-40-BRIDGE assembly is an electronic unit and must not be located where it will be exposed to strong magnetic fields or excessive vibration.
* North American panel installation techniques
NGC-40 CAN Bus Connections for Up to 40 Modules 
APPROVALS
Hazardous Locations
Class I, Div. 2, Groups A,B,C,D T4 Class I, Zone 2, AEx ec IIC T4 Gc IP20 Ex ec IIC T4 Gc X –40°C ≤ Ta ≤ +65°C
Conforms to:
FM STD 3600 & 3611, UL STD 121201, 60079-0, 60079-7, 61010-1, 61010-2-201
Certified to:
CSA STD C22.2# 213, 60079-0, 60079-7, 61010-1, 61010-2-201
(Russia, Kazakhstan, Belarus)
For other countries contact your local Chemelex representative.
- IEC Ex Markings: IECEx ETL 17.0062X Ex ec IIC T4 Gc
- ATEX Markings: ITS17ATEX402833X II 3 G Ex ec IIC T4 Gc
North America
- Tel +1 800 545 6258
- info@chemelex.com
Latin America
- Tel +1 713 868 4800
- info@chemelex.com
Europe, Middle East, Africa, India
- Tel +32 16 213 511
- Fax +32 16 213 604
- info@chemelex.com
Asia Pacific
- Tel +86 21 2412 1688
- infoAPAC@chemelex.com
Frequently Asked Questions
What approvals does the NGC-40-BRIDGE module have?
The module conforms to FM STD 3600 & 3611, UL STD 121201, 60079-0, 60079-7, 61010-1, 61010-2-201 and is certified to CSA STD C22.2# 213, 60079-0, 60079-7, 61010-1, 61010-2-201. It also has IEC Ex and ATEX markings for specific regions.
How many communication ports are supported by the NGC-40-BRIDGE module?
The NGC-40-BRIDGE module supports multiple communication ports for both serial and Ethernet connections with external devices.
What is the purpose of the CAN bus termination block included in the kit?
The CAN bus termination block is used for terminating the CAN bus network to ensure proper signal integrity and communication within the system.
Is the NGC-40-BRIDGE module suitable for use in hazardous locations?
Yes, the module is approved for use in hazardous locations as indicated by its certifications and markings.
Documents / Resources
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Raychem NGC-40-BRIDGE Control and Monitoring Modules [pdf] User Manual NGC-40-BRIDGE, NGC-40-BRIDGE Control and Monitoring Modules, NGC-40-BRIDGE, Control and Monitoring Modules, Monitoring Modules, Modules |