Control and Monitoring Modules for use with
the nVent Raychem NGC-40 System Installation Instructions
DESCRIPTION
A
B
The nVent RAYCHEM NGC-40-BRIDGE module provides
theinterface 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.
C
D
APPROVALS
Hazardous Locations
3128486
Class I, Div. 2, Groups A,B,C,D T4
Class I, Zone 2, AEx nC IIC T4 IP20
Ex nL IIC T4 X
(Russia, Kazakhstan, Belarus)
For other countries contact your
local nVent representative.
Conforms to:
FM Class Number 3600 (11/98)
FM Class Number 3611 (10/99)
ANSI/UL STD. 60079-15-2009
UL STD. 61010-1
TOOLS REQUIRED
• Small flat-blade screwdriver
ADDITIONAL MATERIALS REQUIRED
• 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
This component is an electrical device that must be installed correctly to ensure proper operation and to prevent shock or fire. Fortechnical
support, call nVent at (800) 545-6258.
Page 2
GENERAL
Supply voltage24 Vdc ± 10%
Internal power consumption< 3.6 W per NGC-40-BRIDGE
Ambient operating temperature–40ºC to 65ºC (–40ºF to 149ºF)
Ambient storage temperature–40ºC to 75ºC (–40ºF to 167ºF)
EnvironmentPD2, CAT III
Max. altitude2,000 m (6,562 ft)
Humidity5 – 90% noncondensing
MountingDin Rail – 35 mm
ELECTROMAGNETIC COMPATIBILITY
EmissionsEN 61000-6-3Emission standard for residential, commercial and light industrial environments
ImmunityEN 61000-6-2Immunity standard for industrial environments
COMMUNICATIONS COM1, COM2
Type2-wire RS-485
CableOne shielded twisted pair
Length1,200 m (4,000 ft) maximum
QuantityUp to 255 devices per port
Data rate9600, 19.2K, 38.4K, 57.6K, 115.2K baud
Data bits7 or 8
ParityNone, even, odd
Stop bits0, 1, 2
Tx delay0 – 5 sec.
ProtocolModbus RTU or ASCII
Connection terminalsWago cage clamp terminals
COMMUNICATIONS COM3
TypeRS-232
CableCustom TTC# 10332-005
Length15 m (50 ft) maximum
Data rate9600, 19.2K, 38.4K, 57.6K, 115.2K baud
Data bits7 or 8
ParityNone, even, odd
Stop bits0, 1, 2
Tx delay0 – 5 sec.
ProtocolModbus RTU or ASCII
Connection terminalsRJ-11
CAN NETWORKING PORT
Type2-wire isolated CAN-based peer-peer network. Isolated to 300 V.
ConnectionTwo 8-pin RJ-45 connectors (both may be used for Input or Output connections)
ProtocolProprietary NGC-40
TopologyDaisy chain
Length10 m (33 ft) maximum
QuantityUp to 80 CAN nodes per network segment
AddressUnique, factory assigned
ETHERNET
Type10/100 BaseT Ethernet network
Length100 m (328 ft)
Data rates10 or 100 MB/s
ProtocolModbus/TCP
Connection terminalsShielded 8-pin RJ-45 connector on front of module
PROGRAMMING AND SETTING
LED indicators
Alarm conditionsRESET, Configuration lost, CAN communications fail
Configuration switchSET/RUN slide switch on front of module
CONNECTION TERMINALS
Wiring terminalsCage clamp, 0.5 to 2.5 mm² (24 to 12 AWG)
CAN networking and module powerTwo RJ-45s, one each IN and OUT. Provides CAN bus signals and +24 Vdc power.
HOUSING
Size45.1 mm (1.78 in) wide x 87 mm (3.43 in) high x 106.4 mm (4.2 in) deep
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System Components
45.1 mm (1.78 in)45.1 mm (1.78 in)
45.1 mm (1.78 in)
NGC-40 BRIDGE MODULE
FrontTopBottomBack
RESET
87 mm (3.43 in)
A. 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
B. 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
45.1 mm (1.78 in)
106.4 mm (4.2 in)
87 mm (3.43 in)
C. Communication Slide Switch
D. 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 detected
Bottom LED
Off No LAN activity
Yellow (flashing) LAN activity (data packet)
F. CAN Bus/Module Power
G. Reset Button
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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.
2
1
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.
RESET
NGC-40 BRIDGE MODULE
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.
REMOVAL: Push the module upwards to
disengage the clip, then rotate the module
toward you.
2
1
RESET
NGC-40 BRIDGE MODULE
COM 1 InCOM 1 In
11 55 99
++––
Field
Field
terminal
terminal
block
block
++––++––
To upstream
To upstream
device
device
COM 2 InCOM 2 In
33 77 1111
++––
To upstream
To upstream
device
device
Field
Field
terminal
terminal
block
block
COM 1 OutCOM 1 Out
1010
66
22
++––
120 ohm
120 ohm
termination
termination
resistor
resistor
COM 2 OutCOM 2 Out
44 88 1212
++––
120 ohm
120 ohm
termination
termination
resistor
resistor
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RS-485 Connection Diagrams – European Installation Technique
COM 1&2 Connections (In)
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 9 & 11. Terminate Com shields
at the panel mounted field terminal block chassis ground.
TheCom cable shield from the field terminal block to the
Bridge should be terminated at the earth ground bar.
Earth grounding
Earth grounding
bar located at the
bar located at the
bridge module
bridge module
Field
Field
terminal
terminal
block
block
Earth grounding
Earth grounding
bar located at the
bar located at the
bridge module
bridge module
NGC-40 BRIDGE MODULE
RESET
COM 1 InCOM 1 In
11 55 99
++––
++––
To upstream
To upstream
device
device
COM 2 InCOM 2 In
33 77 1111
++––
++––
To upstream
To upstream
device
device
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.
NGC-40 BRIDGE MODULE
RESET
COM 1 OutCOM 1 Out
22
++––
120 ohm
120 ohm
termination
termination
resistor
resistor
COM 2 OutCOM 2 Out
44 88 1212
++––
120 ohm
120 ohm
termination
termination
resistor
resistor
1010
66
Earth grounding
Earth grounding
bar located at the
bar located at the
bridge module
bridge module
Field
Field
terminal
terminal
block
block
Earth grounding
Earth grounding
bar located at the
bar located at the
bridge module
bridge module
Local RS-232 (COM 3) & EthernetSwitch 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:
NGC-40 BRIDGE MODULE
RESET
RS-232RS-232
Local RS-232
Local RS-232
to Laptop
to Laptop
EthernetEthernet
To upstream
To upstream
device
device
Bridge
Module Settings
Modbus address1
Local RS-232
ProtocolRTU
Data rate9600 baud
Data bits8
Stop bits2
ParityNo parity
Switch Position
SET
Configuration mode
RUN
Normal operating
mode
Settings based on the
user configuration
parameters
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RMM2 Connection – Optional
When using the field mounted RMM2 for RTD input, it must be
connected to the COM 2 In as shown below.
* Power supply shall have a means for disconnect from line voltage* Power supply shall have a means for disconnect from line voltage
ININ
OUTOUT
CAN / 24 Vdc
HTC/HTC3
or
I/O
Module 11
ININOUTOUT
CAN / 24 Vdc
HTC/HTC3
or
I/O
Module 12
ININOUTOUT
CAN / 24 Vdc
HTC/HTC3
or
I/O
Module 13
ININOUTOUT
CAN / 24 Vdc
HTC/HTC3
or
I/O
Module 14
ININOUT
CAN / 24 Vdc
HTC/HTC3
or
I/O
Module 20
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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.
Termination
block
CAN / TERM CAN / 24 VDC
Termination
block
CAN / TERM CAN / 24 VDC
PTM
PTM
Provide Suitable Panel Enclosure and Determine Locations for NGC-40-BRIDGE Assembly in Panel*
1. Provide suitable panel enclosure
The NGC-40-BRIDGE must be mounted in an enclosure
door
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
Alarm
light
this range, a space heater and/or cooling fan will be
required in the panel.
2. 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.