nVent RAYCHEM NGC-UIT-ORD User manual
NGC-UIT-ORD kit shown
installed in user’s panel
DESCRIPTION
The nVent RAYCHEM NGC-UIT-ORD is a panel mounted display
used in conjunction with other approved RAYCHEM control
and monitoring devices. The NGC-UIT-ORD is rated NEMA 12,
and the display can best be viewed indoors. The NGC-UIT-ORD
kit includes all hardware required for mounting in a suitable
electrical panel. These instructions describe how to mount the
NGC-UIT-ORD in an electrical panel and are intended only for
personnel experienced in panel construction.
TOOLS REQUIRED
• Masking tape • #16 (3/16) drill bit
• 11/32 inch nut driver • Metal file
• Jig saw (recommend using carbon steel blade with 24 TPI)
APPROVALS/CERTIFICATIONS
General
Supply voltage 100 – 240 Vac ±10%, .25 A max/25 VA,
Operating
temperature
–40°F to 149°F (–40°C to 65°C)
EMC Immunity – Industrial
Emission – Commercial / Light Industrial
Vibration Unit tested to IEC-60068-2-6
Shock Unit tested to IEC-60068-2-27
Dimensions
(260 mm wide X 168 mm high X 76 mm deep)
Control Outputs
Relay outputs Three relay outputs, Form C contacts, switching
loads up to 277 Vac/3 Amps
Relays may be assigned for alarm outputs
11 position Phoenix-style pluggable screw
terminal connector with retaining screws
Status LEDs
Relay Three LEDs showing the ON/OFF Status for
Field Transmit and Receive activity
Local/Remote Transmit and Receive activity
NGC-UIT-ORD
User Interface Terminal for nVent RAYCHEM NGC Systems
Installation Instructions
LR67275
Nonhazardous Locations
2 | nVent.com
OVERVIEW OF INSTALLATION PROCEDURE FOR NGC-UIT-ORD
Page #
A. Provide suitable panel enclosure, and determine 2
locations for NGC-UIT-ORD assembly in panel
B. Cut opening and mount NGC-UIT-ORD on front of panel 3
C. Installing common alarm light 4
D. Connect power and communication to the UIT 4
E. Servicing 5
F. Cleaning 5
G. Configuration switches 5
H. Reset switch 5
I. Cutting template 7
A. PROVIDE SUITABLE PANEL ENCLOSURE, AND DETERMINE LOCATIONS FOR NGC-UIT-ORD ASSEMBLY IN PANEL
1. Provide suitable panel enclosure
To protect its electronic components, the NGC-UIT-ORD must
be mounted in a minimum NEMA 1 enclosure. A NEMA 12
or better enclosure is recommended. The NGC-UIT-ORD as-
sembly comes with a sealing gasket and hardware to mount
the enclosure.
Note: The RAYCHEM NGC-UIT-ORD is designed for opera-
tion in ambient temperatures from –40°F to 149°F (–40°C
to 65°C). If the ambient temperature is outside this range, a
space heater and/or cooling fan will be required in the panel.
2. Determine locations for the NGC-UIT-ORD assembly in the
electrical panel
The NGC-UIT-ORD should be located on the front of the panel
near eye level (for convenient viewing). The NGC-UIT-ORD as-
sembly is an electronic unit and must not be located where it
will be exposed to strong magnetic fields or excessive vibration.
A
B
D
E
C
KIT CONTENTS
Item Qty Description
A 1 NGC-UIT-ORD display
B 1 Sealing gasket
C 10 #8 washers (stainless steel)
D 10 #8/32 locknuts (stainless steel)
E 1 5 ft. (1.5 m) RS-232 adaptor cable
Network Connection
Local port/
remote
RS-485/RS-232, selectable. Port may be used to
communicate with Supervisor Software
RS-232 is non-isolated, RJ-11 connection
RS-485, 2-wire Isolated. Phoenix-style pluggable
screw terminal connector with retaining screws.
Maximum number of devices 256. Fail safe
design with optional termination resistors
Data Rate: 2400 to 57600 baud
Maximum cable length for RS-485 not to
exceed 4000 feet (1200 m). Cable to be shielded
twisted pair
USB host Three colors showing status:
Red = USB key fault
Green = USB key inserted
UIT status Three colors showing system status:
Green = Normal Condition
Red = Fault Condition
Field port RS-485 2-wire isolated. Used to communicate
with external devices, such as NGC-30-CRM,
5GF-C and RMM2. Maximum cable length
not to exceed 4000 ft (1200 m). Cable to be
shielded twisted pair
Phoenix style pluggable screw terminal
connector with retaining screws. Maximum
number of devices 256. Fail safe design with
optional termination resistors
Data rate to 9600 baud
LAN 10/100 Base-T Ethernet port with Link and
Activity Status LEDs
USB port USB 2.0 Host port Type A receptacle
LCD Display
Display
device with integral CCFL backlight.
Touch screen 4-wire resistive touch screen interface for user
This component is an electrical device
which must be installed correctly to ensure
proper operation and to prevent shock
or fire. Read these important warnings
and carefully follow all the installation
instructions.
• Component approvals and performance
are based on the use of specified parts
only. Do not use substitute parts.
WARNING:
C1
CB19
CB17
CB15
CB13
CB3
CB9
CB11
CB7
CB5
CB1
CB16
CB42
CB20
CB18
CB4
CB14
CB12
CB10
CB8
CB6
CB2
C2 C3 C4 C5 C6 C7 C8 C9 C10
CB23
CB25
CB27
CB29
CB21
CB26
CB28
CB30
CB22
CB24
CB31
CB33
CB35
CB37
CB39 CB40
CB36
CB32
CB34
CB38
1
3
5
7
9
19
17
15
13
11
29
27
25
23
21
39
37
35
33
31
2
4
6
8
10
12
14
16
18
20
30
28
26
24
22
32
34
36
38
40
PanelNGC-UIT-ORD
assembly location
Panel
door
Alarm
light
nVent.com | 3
1. Locate the NGC-UIT-ORD on front of panel
Locate the NGC-UIT-ORD assembly on the front of the panel
at a level convenient for viewing. Make sure the cover on the
back of the assembly will not interfere with existing panel
hardware.
Cutting
Area
Cutting Template
5.54 in
(140.7 mm)
9.1 in
(231 mm)
2. Prepare and mark the position of the display opening and
mounting holes
• Use the cut-out template on page 7 to lay out the opening
for the NGC-UIT-ORD display.
• Apply two layers of masking tape around the outer
perimeter of the intended opening to prevent scratching the
panel surface with the jigsaw.
• Use the template on page 7 to mark the opening and the
mounting holes for the user interface assembly.
3. Cut the display opening
Cut the opening for the NGC-UIT-ORD with a jigsaw using
proceeding.
4. Drill the mounting holes
Drill the 10 holes with a #16 (3/16 in) drill bit to mount the
NGC-UIT-ORD assembly in the panel.
Note: The following steps are most easily accomplished if
5. Position the gasket on the outside of the panel door
• Place the sealing gasket between the NGC-UIT-ORD and
front side of enclosure door.
Note: Cutting the opening for the display is a craft sensitive
procedure; if it is not done correctly, the panel door can be
damaged. The procedure for laying out and cutting the opening
for the display must be undertaken with care, and by personnel
6. Mount the user interface assembly onto the panel door
• Place the NGC-UIT-ORD assembly in position; the ten
mounting screws go through the ten holes on the NGC-UIT-
• Place a #8 washer and #8/32 locknut on each of the ten
mounting studs; fasten only hand tight.
• Look at the front of the panel, and align the NGC-UIT-ORD
assembly so it is level (loosen nuts if necessary to reposi-
tion the NGC-UIT-ORD assembly).
• After the display and gasket are properly positioned,
tighten the nuts to 10 inch pounds of torque using an
11/32 inch nut driver.
Do not overtighten and risk damage to hardware.
UIT
display
Sealing
gasket
Panel
door
Inside of
panel door
UIT
display
B. CUT OPENING AND MOUNT NGC-UIT-ORD ON FRONT OF PANEL
4 | nVent.com
NGC-30-CRM
Fail Safe Relay Outputs AC inputRS-485 Ports
10/100
Ethernet
RS-232
(DCE)
Local
S
+
S
+– –
N/L2
Line/L1
SIG –
SIG +
Shield
SIG –
SIG +
Shield
11109 321876543
Relay 3Relay 2Relay 1
RemoteField
21654321
To next
NGC-30-CRM
Chassis
GRD
RS-485
cable
RS-232
cable
Ethernet
cable
Load
Note: When using RS-485 communication,
use Belden cable 8761 or equivalent.
RS-485 cable must not exceed 4000 ft.
Note: Relays are shown in the energized position (without an alarm condition).
Up to
277 Vac
3 Amps
Typical of
Relay 2 N/L2 100 to
240 Vac
±10%
Line/L1
Relay 2
120 Vac
Relay 1
PC
R
Select either RS-232, RS-485 or
Ethernet. Refer to the NGC-30
Programming Guide (H58186), and
the NGC-30 Installation Manual
(H57878) for further details.
C. INSTALLING COMMON ALARM LIGHT
An alarm light must be installed on the front of the enclosure
to indicate when an alarm has occurred. Relay 1 has already
been programmed for this purpose, and must be connected
as shown.
If desired, install a push-to-test alarm light and/or interposing
relay and test button.
11109876543
Relay 1
21
120 Vac
Relay 1
R
D. CONNECT POWER AND COMMUNICATION TO THE UIT
Power and Earth Ground
1. Connect 100 to 240 Vac ±10% to AC input terminals (Line/
Ensure that branch circuit breaker does not exceed 15A and
is installed in accordance with local electrical codes.
2. A ground conductor must be terminated at the ground
Communication
Field side port
1. This port is used to communicate with ModBus®devices.
Connections to these terminals should be a shielded, twisted
pair cable. (Belden CDT cable 8761 or equivalent, maximum
length is 4,000 ft [1.2 km]). For more information, refer to
the NGC-30 Programming Guide (H58186) and the NGC-30
Installation Manual (H57878).
Local port
1. This port is used to communicate to a host computer and is
user selectable for either RS-232, RS-485 or Ethernet.
adaptor cable must be used. For more information, refer to
the NGC-30 Programming Guide (H58186) and the NGC-30
Installation Manual (H57878).
nVent.com | 5
E. SERVICING
The NGC-UIT-ORD contains no user-serviceable parts.
Contact your nVent representative for service and an
F. CLEANING
The touch screen area of the NGC-UIT-ORD may be cleaned
with a damp or dry cloth. Typical window cleaning agents
may be applied to aid in the removal of dirt, dust and grease.
Do not use abrasive cleaners.
G. CONFIGURATION SWITCHES
the NGC-UIT-ORD. Refer to the table below for settings.
H. RESET SWITCH
The Reset switch can be found on the side of the NGC-UIT-ORD. A pointed object is required to press the reset switch and
restart the NGC-UIT software.
Switch
Position
CommentsOn Off
TERM R-FIELD
(Field Port
Termination Select)
Terminates local
RS-485 network.
120 Ohm
Termination
Enabled
(Factory Default)
Termination
Disabled
For the local FIELD RS-485
network. If this NGC-UIT is the
first or last RS-485 device in
the network, it must be set to
ENABLED/ON. If the NGC-UIT
is NOT the first or last device,
it must be set to DISABLED/
OFF.
TERM R-REMOTE
(Remote Port
Termination Select)
Terminates remote
RS-485 network
connected to PC and
RAYCHEM Supervisor
software.
120 Ohm
Termination
Enabled
Termination
Disabled
(Factory De-
fault)
For the REMOTE RS-485
network connected to a PC.
or last RS-485 device in the
remote network, it must be
set to ENABLED/ON. If the
NGC-UIT is NOT the first or
last device, it must be set to
DISABLED/OFF.
WDT
(Factory Default)
enabled
Side View
6 | nVent.com
This Page Purposely Left Blank
nVent.com | 7
Cutout
Area
9.1 in (231 mm)
1.84 in (47 mm)
Cutting Template
5.54 in (140.7 mm)
1.84 in (47 mm)
.ø18 in (5 mm)
3.0 t(76 mm)
2.12 in (54 mm)
2.12 in (54 mm)3.0 in (76 mm) 3.0 in (76 mm)
10 places
IMPORTANT:
Before using this cutting template you must make
sure it has printed to scale or you will damage your
panel door. Printers* and copiers may make reduc
-
tions from the original size. Please ensure the file
has printed at 100% scale by using a ruler to confirm
the dimensions are as marked on this template.
*Adobe Acrobat may reduce the document layout by default to
fit a generic printer's margins. Make sure scaling is turned off.
0.24 in (6 mm)
0.24 in (6 mm)
0.24 in (6 mm)
0.24 in (6 mm)
✁Cut here
nVent.com
North America
Tel +1.800.545.6258
Fax +1.800.527.5703
Europe, Middle East, Africa
Tel +32.16.213.511
Fax +32.16.213.604
Asia Pacific
Tel +86.21.2412.1688
Fax +86.21.5426.3167
Latin America
Tel +1.713.868.4800
Fax +1.713.868.2333
©2018 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its aliates. All other trademarks are the property of their respective owners.
nVent reserves the right to change specications without notice.
Raychem-IM-H57627-NGCUITORD-EN-1805
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