Detcon 610-N4X User Manual

Model 610-N4X

NEMA 4X Control Enclosure

Operator’s Installation and Instruction Manual

Covers 610-N4X and 610-N4X-BBU

The Woodlands, Texas 77387

Ph.281.367.4100 / Fax [phone]

July 25, 2011 • Document #2869 • Revision 2.2

DETCON, Inc.

3200 Research Forest Dr.,

www.detcon.com/

Model 610-N4X

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610-N4X Instruction Manual ii

Model 610-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 ................................................................................................................................................ 5

3.0 Maintenance & Repair............................................................................................................................ 6

4.0 Spare Parts List........................................................................................................................................ 7

5.0 Warranty.................................................................................................................................................. 7

Table of Figures

Figure 1 Auxiliary Alarm Relay Board................................................................................................................ 2

Figure 2 Mounting................................................................................................................................................ 3

Figure 3 Motherboard Wiring Diagram ............................................................................................................... 4

Figure 4 Backplane Configuration Jumpers......................................................................................................... 5

Figure 5 Power Supply Wiring............................................................................................................................. 6

610-N4X Instruction Manual iii

Model 610-N4X

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Shipping Address: 3200 A-1 Research Forest Dr., The Woodlands Texas 77381

Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067

Phone: [phone] • Fax: 281.292.286 0 •

610-N4X Instruction Manual iv

www.detcon.com • [e-mail]

Model 610-N4X

1.0 Introduction

Detcon Model 610-N4X Gas Detection System consists of 3 major assemblies:

1. The 610-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 610-N4X control enclosure, along with Model 10 Control Modules, is designed to serve as a
host assembly for up to six 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

16 “W x 18''H x 10½”'D

Capacity

6 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 2.9Ah batteries in series; ½ hour minimum operating time
Low Voltage Cut-off Board

Warranty

One year

610-N4X Instruction Manual Rev. 2.2 Page 1 of 8

Model 610-N4X

1.3 Auxiliary Alarm Relay Board (AARB)

An Auxiliary Alarm Relay Board is included with each Detcon Model 610-N4X. The board is mounted on the
bottom quadrant of the motherboard. The AARB (
rated 10Amp @ 120VAC and 8Amp @ 30VDC) with 24VDC coils. The AARB can be configured for Form­C dry contacts (common, normally open and normally closed), AC power, or DC power.

Figure 1) consists of four interposing relays (contacts are

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 610-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 610-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 610-N4X
motherboard. Terminal Block P15 (VDC IN) functions as an alternative DC power source used to power
the 610-N4X and as power for DC alarms. The 610-N4X power supply is not designed to provide power
for alarm devices.

610-N4X Instruction Manual Rev. 2.2 Page 2 of 8

Model 610-N4X

NOTE: If the Battery Option is installed (610-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 610-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 3). 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 610-N4X Enclosure in accordance with

Figure 2.

16"
12"

Circuit
Breaker

3 AMP

MODEL 10

MODEL 10

MODEL 10

MODEL 10

MODEL 10

MODEL 10

ALM 2

ALM 2

ALM 2

ALM 2

ALM 2
ALM 1

FAULT

ALARM
RESET

TEST

Detcon Inc.

Detcon Inc.

Gas Detection Control System

www.detcon.com

www.detcon.com

ALM 1

ALM 1

ALM 1

ALM 1

FAULT

FAULT

FAULT

FAULT

ALARM
RESET

TEST

TEST

ALARM

ALARM

ALARM

RESET

RESET

RESET

TEST

TEST

Houston Texas

Houston Texas

Ø0.3"

Mounting Bracket

10"

ALM 2
ALM 1
FAULT

ALARM
RESET

TEST

16.75"

17.85"

Figure 2 Mounting

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 610-N4X motherboard. Terminals are
labeled “Sensor” (mA, + and –,

Figure 3).

610-N4X Instruction Manual Rev. 2.2 Page 3 of 8

Model 610-N4X

3. If applicable, terminate the discrete 4-20mA outputs to external device(s). Terminals are labeled “4-

20 Out” (+ and –,

Figure 3).

BRKR

1
2

P11

PS DC

1

GND

A(+)

Shld

P18

P19

GND

+

2

-

ALM RESET

1
2

P14

VDC IN

+

1

-

2

P15

VAC IN

L1

1

N

2
3

P16

RS-485

1

B(-)

2
3

P17

ALM POWER

1

+

2

-

3

L1

4

N

5

ALM COIL

+

1
2

-

P20

P12

D1 6A 50V
D2 6A 50V

RS-485

Shield
to Gnd

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-CH6

CH1 CH2-CH6

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

A1-NO
A1-NC

A1-COM

485-A

RST
485-S
485-B

XM­XM­XM-

VDC­VDC­VDC-

Typical

Jumpers

JP1-JP5

PS VAC

--

--

--

A
B
C
D
E
F
G
H
I

1
2
3

P13

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-P16

1
2
3
4
5
6
7
8

9
10
11
12
13
14

L1
N
GND

A2-COM
A2-NC
A2-NO
FLT-COM
FLT-NC
FLT-NO
4-20 OUT
4-20 IN

-­XM+
XM+
XM+

-­VDC+
VDC+
VDC+

Figure 3 Motherboard Wiring Diagram

4. If applicable, terminate the RS-485 serial output to external device(s). Terminals are labeled “RS-

485” (A+, B–, and Shield,

Figure 3). 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.

610-N4X Instruction Manual Rev. 2.2 Page 4 of 8

, H,

Model 610-N4X

7. If applicable, connect a 24VDC source or standby battery to the terminal strip labeled “VDC IN”

(P15+ and –) on the Motherboard (

Figure 3).

NOTE: If the unit has the Battery Backup Option installed (610-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 3). The Power Supply will accept input voltages from 100 to 240VAC,

50/60Hz.

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.

CH3CH2 CH4 CH5

1
2

3
A
B
C
D
E
F

G
H

I

JP2

A

4

B

5

6

C

7

D
E

9

F

9

G

10

11

H

12

I

JP3

13

14

1
2
3

A

4

B

5
6

C

7

D
E

9

F

9

G

10
11

H

12

I

JP4

13
14

1
2
3
4

A

5

B

6

C

7

D

9

E

9

F
G

10
11

H
12
13
14

I

JP5

1
2
3
4
5
6
7
9
9
10
11
12
13
14

Alarm 2 Jumper positions
A, B, anc C.

Alarm 1 Jumper positions
D, E, and F.

Fault Jumper positions

and I.

G

CH6

SENSORALM2

ALM 1

OUT

4-20 FAULT

mA
NC
NO
C
NC
NO

NC
NO

CH1

1

+

2

-

3

A

4

B

5
6

C

7

D
E

9

C

C

+

-

F

9

G

10
11

H

12

I

JP1

13
14

1
2
3
4
5
6
7
9
9
10
11
12
13
14

Figure 4 Backplane Configuration Jumpers

2.2 Start Up

Upon completion of all field wiring: Apply power to the 610-N4X by setting the 3Amp Circuit Breaker (the
Circuit Breaker is also a Power Switch, labeled ‘3Amp’) on the front on the Card Cage. Note that each Model
10 controller digital display illuminates.

NOTE: Varying readings may occur during sensor warm-up. A 10 second alarm delay will occur on
power up. Refer to the applicable Sensor Instruction Manual for additional sensor start-up details.

610-N4X Instruction Manual Rev. 2.2 Page 5 of 8

Model 610-N4X

3.0 Maintenance & Repair

The Detcon Model 610-N4X’s modular design allows for minimum ‘down-time’ during maintenance and/or
repair.

Model 10 Control Modules

A Model 10 control module may be changed by simply loosening its mounting screw and sliding the module
out of its card cage. See the Model 10 Instruction Manual for more information on the Model 10 controllers.

Circuit Breaker/Power Switch

If the 3Amp Circuit Breaker/Power Switch should trip due to a high current or over voltage, the circuit breaker
can be reset by pushing the breaker in (‘ON’). If the breaker trips again, a problem has occurred that will need
to be alleviated before power can be restored.

NOTE: The circuit Breaker/Power Switch does not remove VAC from the Power Supply or the
Motherboard. If power is to be completely removed from the unit, the VAC must be disconnected from
the source.

NOTE: On units with Battery Backup installed (610-N4X-BBU), the Circuit Breaker will remove power
from the Unit, but does not disconnect the Battery circuit from the Motherboard or the Low Voltage
Cutoff Board. The Batteries must be unplugged as well as disconnecting the VAC from the source to
remove power completely from the unit.

GND

J1

7

+

RED

6+

BLACK

-

5
4-
3

L1

2

N

1

GND

GREEN
BLACK
WHITE

PS VAC

L1
N

1
2
3

P13

2

RED
RED

1

Circuit Breaker

P12

+

-

BRKRP11

PS DC

1
2

Power Supply

PS

P/N 360-SWS100-024

1
2

Power Supply Wiring - without Battery Backup

Circuit Breaker

RED

GND

J1

7

+

RED

6+

BLACK

5

-

4-
3

L1

2

N

1

GND

GREEN
BLACK
WHITE

PS VAC

L1
N

1
2
3

P13

BLACK

12

P2

Low-Voltage

Cut-off (LV)

P/N 500-505000-000

1234

P1

RED

P11

BRKR

RED
RED

1N4001

1
2

1

+

P12

2

-

PS DC

Note:
1N4001 diode added
to charge batteries

Power Supply

PS

P/N 360-SWS100-024

RED
BLACK

Power Supply Wiring - With Battery Backup

Figure 5 Power Supply Wiring

610-N4X Instruction Manual Rev. 2.2 Page 6 of 8

Model 610-N4X

Power Supply

Replacement of the power supply is accomplished by, removing the 10 screws that secure the 610-N4X face
plate, disconnecting all wiring to/from the power supply, and removing the three screws holding the power
supply bracket to the Motherboard. Remove the four screws that hold the power supply bracket to the power
supply and reassembly with the new power supply. (
with and units without the battery backup option; attention should be paid to the correct wiring scheme for the
unit being worked on.

Figure 5) Power Supply wiring is different between units

4.0 Spare Parts List

Part # Description
224 Gold plated jumper tab
320-228861-103 3Amp Circuit Breaker/Power Switch
360-SWS100-024 100 watt, 24 VDC switching power supply
500-502600-000 Auxiliary Alarm Relay Board
500-505000-000 Low Voltage Cut-off PCB (Battery Backup Units only)
3423-2 12V 6.5Ah Battery (Battery Backup Units only)

5.0 Warranty

Detcon Inc., as manufacturer, warrants under intended normal use each new Model 610-N4X NEMA 4X
control enclosure to be free from defects in material and workmanship for a period of one year. The warranty
period begins from the date of shipment to the original purchaser and ends one year thereafter. All warranties
and service policies are FOB the Detcon Inc. facility located in The Woodlands, Texas.

Appendix C

Revision History

Revision Date Changes made Approval

2.0 04/10/2007 Previously issued B. Masi

2.1 05/27/2008 Placed rev 2.0 in M2M as rev 2.1 B. Masi

2.2 08/15/2008 Updated drawings to remove reference to common alarm. Fixed
wiring diagram. Corrected revision number to match M2M

610-N4X Instruction Manual Rev. 2.2 Page 7 of 8

LU

Model 610-N4X

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Shipping Address: 3200 A-1 Research Forest Dr., The Woodlands Texas 77381

Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067

Phone: [phone] • Fax: 281.292.286 0 •

610-N4X Instruction Manual Rev. 2.2 Page 8 of 8

www.detcon.com • [e-mail]