Lowell SEQ-4A Manual

Lowell Ikke kategoriseret SEQ-4A

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Lowell strives to provide accurate information while reserving the right to change specications and/or improve manufacturing methods without prior notication.

Spec 2216

Model SEQ-4A Rev. 09-20-22 | pg. 1/3

INTERNAL USE ONLY: PN 24188

Compact low voltage four step sequencer model SEQ-4A is

designed to work with a single external switch or voltage input

and low voltage remote power controls (RPCs) to provide time-

delayed activation and deactivation of AC powered equipment

on site or at remote locations.

Note: This sequencer is for use with compatible components that feature classic

connections. It is not for use with devices that feature pass-through connections.

FEATURES:

• Power Requirement: 100-240VAC 12W

• Activation Trigger: This sequencer requires an external

source for activation. See last page for compatible

components.

– Single remote SPST switch with contact closure.maintained

– Mulltiple remote SPST switches with contact momentary

closure and Lowell's MSM2 module connected between

the sequencer and switch.

– Voltage input (5V-24V, AC or DC)

• Four (4) Step Delay:

– Time-delayed closure circuits activate in sequential order

(1, 2, 3, 4) and deactivate in reverse order.

– The delay between steps can be adjusted by setting the DIP

switch on the front (2.5 to 12 seconds between steps). A

reference chart is printed on the top of the chassis.

– LEDs provide visual status of the activation sequence.

– Includes auxiliary 24VDC output (300mA max.) for use with

remote indicators, if needed.

• Compact Chassis: 8.00" x 3.25" x 1.95" (4 lbs.) steel

chassis with black powder epoxy finish and mounting holes.

– Unit can be installed in a remote location or rack panel (2U).

– Operational diagram printed on chassis aids system set-up.

• Country of Origin: Made in U.S.A. with global components

• Power Supply: UL Listed power supply (100-240VAC input,

24VDC 500mA output) with 6 ft. cord and NEMA 1-15P plug.

Includes three adaptors for international use (Schuko CEE

7/16, BS1362, AS3112).

• Installation: The sequencer is typically installed in a

convenient location, while remote power controls are placed

near equipment to be controlled in another rack, room or

building.

– Maximum distance between switch, sequencer and remote

power controls: 22 gauge wire = 6,600 ft.; 18 gauge wire

= 17,160 ft.

– System Capacity: Accepts up to 10 RPCs per step.

• Connections: Order compatible remote power controls and

switches separately.

• A&E Specications: The four step sequencer shall be Lowell

model SEQ-4A, which shall feature barrier strip terminals for

connection to a single external remote switch with maintained

contact closure, multiple remote switches with momentary

closure and Lowell MSM2 module wired between them, or a

voltage input trigger. The sequencer shall connect to external

remote power controls (RPCs) to activate remote equipment in

four steps with an adjustable time delay between each step.

It shall activate RPCs in order (1, 2, 3, 4) and deactivate them

in reverse order. The sequencer shall feature a steel chassis

with mounting holes, black powder epoxy finish, and overall

dimensions of 8.00" x 3.25" x 1.95". shall be made in the It

USA with global components, and include a UL Listed power

supply with NEMA 1-15 plug and three adaptors (Schuko

CEE 7/16, BS1362, AS3112). External switches and remote

power controls shall be ordered separately.

Low Voltage Sequencer (4 step): SEQ-4A

INPUT for activation trigger

Chart for connections

LEDs show sequencing status

OUTPUT to connections

(up to 10 RPCs for each circuit)

Includes power supply

with NEMA 1-15 plug

and three adaptors

Made in U.S.A

with global

components

Lowell strives to provide accurate information while reserving the right to change specications and/or improve manufacturing methods without prior notication.

Spec 2216

Model SEQ-4A Rev. 09-20-22 | pg. 2/3

INTERNAL USE ONLY: PN 24188

INPUT CONNECTION OPTIONS:

OUTPUT CONNECTION OPTIONS:

V+

ON Ind.

OFF Ind.

V+

ON Ind.

OFF Ind.

Conne ct to

MOMEN T ARY

Remot e Switches

+24V

Com

N.O.

N.C.

Model MSM2

Co nne ct

to RPC

Se e Spec/Ins tall sh tee

fo r appl atic ion details

Off

Connec ort to ca sw ch any physi l it

control system that will prov e a id

main inta ed dry contact closure

Dr Coy ntact Control

Swit ch

Common

24VDC Output

200mA max

Tri gger Input

5v – 24v AC or DC

nnec dev e ort to any ic control system

that will prov e a id main inta ed voltage

bet eenw 5 and 24 vo s lt AC or .DC

If DC, observe polarity:

Common=Neg ge, Trig r Input os=P .

Voltage Control

S chwit

Common

24VDC Output

200mA max

Tr gge puti r In

5v – 24v AC or DC

Any Lowell RPSW SB or RP se ries main inta ed contact

remote sw ch mit odel or (rocker keylock)

On On

Rocker

Sw chit

Key

Sw chit

(Sw)

Com

+24V

2.2K 1/2W

Resistor

Schematic

Grn LED

Single Remote Switch Control

Swit ch

Common

24V DC Output

200mA max

Tri gger Input

5v – 24v AC or DC

Swit ch

Common

24V DC Output

200mA max

Tri gger Input

5v – 24v AC or DC

Key

Sw chit

OnOff

(Connect

to NO)

Grn LED

2.2 2WK 1/

Resistor

V+

Sw chit

(Sw)

ON Ind.

Red LED

OFF Ind.

Sc tichema

Any Lowell RPSW2-M or se RPSB2-M ries momentary

contact remote sw ch m ockeit odel (r r or keylock)

Max. sw ch6 it es

Mult leip Remote lSwitch Contro

Connect to

either terminal

MS MoM2 mentary Switch Module

SEQ-4A

Wire requirements:

Any generic cable, sh iield ng needenot

Ma mum xi di an be een devst ce tw ices:

22ga wire: 1 mile

18ga wire: 3 miles

2 co .nd

3 co .nd

4 co .nd

Rocker

Sw chit

OnOff

Norm

Test

Act iva dte

Po wer

In t pu 5v-24v

AC o r DC

+24VDC Ou t

Common

Swit ch

Su Pr Acrge ot onecti tive

W hen Lit (-S mo de onls ly)

RP riC Se es

Remo rote Powe ntr Co l itUn

No rm

Test

Pwr

Act ivat ed

Swit c h

Comm on

24VDC Out pu t

20 0mA max

Trigger tIn pu

5v – 24 v AC or DC

No rmall y C l edos

No rmall y Open

Co mmon

RPC unit

(any model)

RY-2 A or RY-4A Relay Module

To additional RPCs

and/or relay modules

Step 1 connections shown

Steps 2, s 3, and 4 connection are entid ical.

NOTE:

Any combination of se RPC ries models

and/or RY series models y ma be

connected to each sequencer step

Maxi s seq stepmum 75 unit per uence .

Wire requirements:

Any generic cable, shielding needenot d

Ma mum xi di an be een and st ce tw sequencer RPCs ys:/ rela

22ga wire: 1 mile

18ga wire: 3 miles

NOTE: taMain in polarity

(switch to switch co co, m to

2 co .nd

Dela iny Sett gs

Approx. 5 sec.

be eentw steps

20 seconds total

Approx. 2½ se c.

be eentw steps

10 seconds total

Approx. 8 sec.

be eentw steps

32 seconds total

Approx. 12 sec.

be eentw steps

48 seconds total

Produkt Specifikationer

Mærke:	Lowell
Kategori:	Ikke kategoriseret
Model:	SEQ-4A

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