m
Model 1610-N4X
NEMA 4X Control Enclosure
Operator’s Installation and Instruction Manual
Covers 1610-N4X and 1610-N4X-BBU
In Fiberglass and Stainless Steel Enclosures
4055 Technology Forest, Suite 100
The Woodlands, Texas 77381
Ph.281.367.4100 / Fax 281.298.2868
December 14, 2011 • Document #2881 • Revision 1.4
DETCON, Inc.
www.detcon.co
Model 1610-N4X
This page left intentionally blank
1610-N4X Instruction Manual ii
Model 1610-N4X
Table of Contents
1.0
Introduction.............................................................................................................................................. 1
1.1 Description ........................................................................................................................................... 1
1.2 Specifications ....................................................................................................................................... 1
1.3 Auxiliary Alarm Relay Board (AARB)................................................................................................ 2
1.4 Remote Alarm Reset ............................................................................................................................ 3
2.0 Installation................................................................................................................................................ 3
2.1 Alarm and Fault Jumpers ..................................................................................................................... 5
2.2 Start Up ................................................................................................................................................ 6
3.0 Maintenance & Repair ............................................................................................................................ 7
4.0 Spare Parts List........................................................................................................................................ 8
5.0 Warranty .................................................................................................................................................. 8
Table of Figures
Figure 1 Auxiliary Alarm Relay Board ................................................................................................................ 2
Figure 2 Mounting of Fiberglass Enclosure ......................................................................................................... 3
Figure 3 Mounting of SS Enclosure..................................................................................................................... 4
Figure 4 Motherboard Wiring Diagram ............................................................................................................... 5
Figure 5 Backplane Configuration Jumpers......................................................................................................... 6
Figure 6 Power Supply Wiring............................................................................................................................. 7
1610-N4X Instruction Manual iii
Model 1610-N4X
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Shipping Address: 4055 Technology Forest, Suite 100, The Woodlands Texas 77381
Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067
Phone: 888.367.4286, 281.367.4100 • Fax: 281.292.2860 •
1610-N4X Instruction Manual iv
www.detcon.com • sales@detcon.com
Model 1610-N4X
1.0 Introduction
Detcon Model 1610-N4X Gas Detection System consists of 3 major assemblies:
1. The 1610-N4X Fiberglass or Stainless Steel control enclosure.
2. The Model 10 single channel digital control modules.
3. The remote mount gas sensor assemblies.
The NEMA 4X control enclosure is detailed in this manual; the Model 10 Control Modules are detailed in the
Detcon Model 10 Operators Installation and Instruction Manual, and applicable sensor assemblies in their
corresponding Operators Installation and Instruction Manual.
1.1 Description
Detcon Model 1610-N4X control enclosure, along with Model 10 Control Modules, is designed to serve as a
host assembly for up to sixteen remote mount gas detection sensors. The control enclosure is rated NEMA 4X,
which is by definition rain tight and therefore suitable for outdoor location in electrically non-hazardous
environments. All control modules are plug-in front panel accessible for easy maintenance and repair. The
unit is powered by 110~240VAC unless otherwise specified at the time of order.
Discrete output terminal strips located on the controller motherboard are provided for sensor terminations. 420mA outputs for remote recording devices and an RS-485 serial ModBus™ output are also located on the
motherboard. VDC power in, and remote alarm reset terminations are also provided on the Motherboard.
Form-C relay outputs from each Control Module are provided for Alarm 1, Alarm 2, and Fault conditions.
These relay outputs can be configured as discrete or zoned as determined by jumpers located between the
channels on the motherboard and the relay settings determined by the dipswitches on the Model 10 Control
Modules.
1.2 Specifications
Electrical Classification
NEMA 4X
Dimensions
25½ “W x 23''H x 10½”'D
Capacity
16 single channels
Power Input
110~240VAC/24VDC
Power Consumption
<5 watts per channel (includes gas sensor and control modules; Does not include annunciators.)
Outputs
Discrete Analog 4-20mA DC
Serial RS-485 Modbus™
Discrete or zoned alarm relays (Alarm 1, Alarm 2, and Fault located on associated Mod 10 Control
Modules. See the appropriate Mod 10 Control Module Manual for more information.)
Operating Temperature Range
-40°C to +75°C
Battery Backup (If applicable)
2ea. 12V 6.5-7.2Ah batteries in series; ½ hour minimum operating time
Low Voltage Cut-off Board
Warranty
One year
1610-N4X Instruction Manual Rev. 1.4 Page 1 of 10
1.3 Auxiliary Alarm Relay Board (AARB)
An Auxiliary Alarm Relay Board is included with each Detcon Model 1610-N4X. The board is mounted on
the bottom quadrant of the motherboard. The AARB (Figure 1) consists of four interposing relays (contacts
are rated 10Amp @ 120 VAC and 8Amp @ 30 VDC) with 24VDC coils. The AARB can be configured for
Form-C dry contacts (common, normally open and normally closed), AC power, or DC power.
Model 1610-N4X
2.50
3.04
2.85
3.35
Figure 1 Auxiliary Alarm Relay Board
Ø0.165 X4
An ‘IN/OUT’ termination is provided for applying AC or DC power to any one of the interposing relays. A
gold plated jumper tab is used to apply the power option to the corresponding relay(s). The 4 relays may be
used in any combination of Form-C dry contacts, DC outputs, and AC outputs. The terminations labeled
“ALM COIL PWR” (P20) located on the lower left of the motherboard are used to power the relay coils on the
AARB. Terminals P1+4, P1+3, P1+2, and P1+1 on the AARB provide for various relay logic setups through
the Form-C dry contact terminals of each Model 10 Control Module. P1-COM on the AARB should be wired
directly back to P20-2 (ALM COIL PWR (-)) on the motherboard.
The terminations labeled “ALM PWR” located on the left of the 1610-N4X motherboard can be used to
provide power to the In/Out termination on the AARB (AARB P2-IN/OUT). Alarm power terminations for
AC (P18) come directly from the AC input terminals (P16) on the 1610-N4X motherboard. The DC power
terminations at P18 come directly from the VDC IN Terminals (P15).
NOTE: DC power used to drive alarms must be obtained through a remote DC power source. The
remote DC power source should be terminated at P15 labeled “VDC IN” located on the 1610-N4X
motherboard. P15 (VDC IN) functions as both an alternative DC power source used to power the 1610N4X and as power for DC alarms. The 1610-N4X power supply is not designed to provide power for
alarm devices.
1610-N4X Instruction Manual Rev. 1.4 Page 2 of 10
Model 1610-N4X
NOTE: If the Battery Option is installed (1610-N4X-BBU), the batteries are connected to P15 (VDC IN).
Do not use the DC output of “ALM POWER” (P18-1 and P18-2). The Batteries are not designed to
provide power for alarm devices.
Mounting hardware is provided on the 1610-N4X motherboard for two additional Auxiliary Alarm Relay
Boards.
1.4 Remote Alarm Reset
A remote mounted normally open momentary switch may be used to reset the alarms of all Model 10
controllers. “ALM RESET” (P14-1 and P14-2) provides a set of terminals to connect the switch across every
Model 10 Controller (Figure 4). The reset function is effective when the Model 10’s respective alarms have
been programmed in the latching position and alarm conditions have passed. Each Model 10 controller also
has its own discrete alarm reset switch, discussed further in the Model 10 Controller Manual.
2.0 Installation
1. Securely mount the 1610-N4X Enclosure in accordance with Figure 2 or Figure 3.
17.85" 10.0"
10.3"25.59"
CIRCUIT
BREAKER
5 AMP
Model 1610-N4X
Detcon Inc.
Detcon Inc.
Gas Detection Control System
www.detcon.com
www.detcon.com
www.detcon.com
TexasHouston
Houston Texas
Houston Texas
22.85"21.70"
Figure 2 Mounting of Fiberglass Enclosure
1610-N4X Instruction Manual Rev. 1.4 Page 3 of 10
Model 1610-N4X
Model 1610-N4X
MODEL 10
MODEL 10
MODEL 10
MODEL 10
MODEL 10
MODEL 10
MODEL 10
ALM 2
ALM 2
ALM 2
ALM 1
ALM 1
ALM 1
FAULT
FAULT
FAULT
ALARM
ALARM
ALARM
RESET
RESET
RESET
TEST
TEST
TEST
ALM 2
ALM 2
ALM 2
ALM 2
ALM 1
ALM 1
ALM 1
ALM 1
FAULT
FAULT
FAULT
FAULT
ALARM
ALARM
ALARM
RESET
RESET
RESET
TEST
TEST
TEST
TEST
www.detcon.com
MODEL 10
MODEL 10
MODEL 10
MODEL 10
MODEL 10
MODEL 10
MODEL 10
MODEL 10
MODEL 10
ALM 2
ALM 1
FAULT
ALARM
ALARM
RESET
RESET
TEST
ALM 2
ALM 2
ALM 2
ALM 2
ALM 1
ALM 1
ALM 1
ALM 1
FAULT
FAULT
FAULT
FAULT
ALARM
ALARM
ALARM
ALARM
RESET
RESET
RESET
RESET
TEST
TEST
TEST
TEST
ALM 2
ALM 2
ALM 2
ALM 2
ALM 1
ALM 1
ALM 1
ALM 1
FAULT
FAULT
FAULT
FAULT
ALARM
ALARM
ALARM
ALARM
RESET
RESET
RESET
RESET
TEST
TEST
TEST
TEST
27.85 28.6 29.6
23.5
24.75
Ø0.31
9.75
9.85
Figure 3 Mounting of SS Enclosure
2. Refer to installation and wiring detail of remote mount sensor assemblies as detailed in the Sensor
Instruction Manual. Terminate field wiring from sensors on the 1610-N4X motherboard. Terminals
are labeled “Sensor” (mA, + and –, Figure 4).
3. If applicable, terminate the discrete 4-20mA outputs to external device(s). Terminals are labeled “4-
20 Out” (+ and –, Figure 4).
4. If applicable, terminate the RS-485 serial output to external device(s). Terminals are labeled “RS-
485” (A+, B–, and Shield, Figure 4). If applicable, terminate RS-485 Shield to Earth Ground via the
jumper tab located to the left of the RS-485 terminals. Place the jumper on the bottom 2 contacts to tie
RS-485 shield to Earth Ground or place the jumper tab on the top two terminals for storage.
5. If applicable a Remote Reset Switch can be utilized by connecting a Momentary, Normally-Open
Switch to P14 (ALM RESET).
6. Earth Ground can be connected to the ground point located in the lower left quadrant of the
motherboard.
7. If applicable, connect a 24VDC source or standby battery to the terminal strip labeled “VDC IN”
(P15+ and –) on the Motherboard (Figure 4).
NOTE: If the unit has the Battery Backup Option installed (1610-N4X-BBU), do not connect an external
power source to P15.
8. Connect 110/220VAC input wiring to the terminals labeled “VAC IN”; P16-1 (L), P16-2 (N), and
P16-GND Ground (Figure 4). The Power Supply will accept input voltages from 100 to 240VAC,
50/60Hz.
1610-N4X Instruction Manual Rev. 1.4 Page 4 of 10
Model 1610-N4X
BRKR
1
2
P11
D2 6A 50V
D1 6A 50V
RS-485
Shield
to Gnd
JP10
Earth
Ground
Tie to
Chassis
A1 C1
C2A2
A3 C3
C4A4
A5 C5
A6 C6
C7A7
A8 C8
C9A9
A10 C10
A11 C11
C12A12
A13 C13
C14A14
A15 C15
A16 C16
CH1 CH2-CH116
CH1 CH2-CH116
P11
1
+
2
mA
3
NC
4
NO
5
COM
6
NC
7
NO
COM
COM
OUT
8
9
NC
10
NO
11
12
+
13
14
ALM 1
4-20 FAULT SENSORALM2
AL1-NO
AL1-NC
Al1-COM
485-A
RST
485-S
485-B
XMXMXM-
VDCVDCVDC-
Typical
Jumpers
JP1-JP15
--
--
--
A
B
C
D
E
F
G
H
I
A1 C1
C2A2
A3 C3
C4A4
A5 C5
A6 C6
C7A7
A8 C8
C9A9
A10 C10
A11 C11
C12A12
A13 C13
C14A14
A15 C15
A16 C16
P12-P26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Al2-COM
Al2-NC
Al2-NO
FLT-COM
FLT-NC
FLT-NO
4-20 OUT
4-20 IN
-XM+
XM+
XM+
-VDC+
VDC+
VDC+
GND
L1
ALM RESET
GND
A(+)
B(-)
Shld
ALM POWER
P18
P19
GND
PS DC
+
-
PS VAC
1
N
2
3
VDC IN
+
-
VAC IN
L1
N
RS-485
+
-
L1
N
ALM COIL
+
-
1
2
P12
P13
1
2
P14
1
2
P15
1
2
3
P16
1
2
3
P17
1
2
3
4
5
1
2
P20
Figure 4 Motherboard Wiring Diagram
2.1 Alarm and Fault Jumpers
A bank of jumpers is provided between each channel for use in setting up alarm and fault schemes. These
jumpers can be installed or removed to create discrete or zoned alarm/fault schemes in conjuncture with the
Model 10 Control Module relay settings. With all of the jumpers installed on the motherboard, the relays on
the Control Modules are placed in parallel with each other. (I.E. All of the Alarm 1 relays are in parallel, all of
the Alarm 2 relays are in parallel, and all of the Fault Relays are in parallel.) In this configuration, the
normally open (“NO”) contacts of the relays would be used to generate an alarm or fault condition, as contact
closure on any Control Module would create continuity between the “COM” contact and the “NO” contact
output for that alarm or fault. A scheme for alarms should be conceived before power is applied to the unit,
and the unit should be set up accordingly. For aid in setting up an appropriate alarm/fault scheme, contact
Detcon Customer Service.
1610-N4X Instruction Manual Rev. 1.4 Page 5 of 10
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