SEQ-4A - Unknown Lowell - Free user manual and instructions

USER MANUAL SEQ-4A Lowell

Includes power supply with NEMA 1-15 plug and three adaptors Chart for connections LEDs show sequencing status OUTPUT to connections (up to 10 RPCs for each circuit) INPUT for activation trigger

Made in U.S.A with global components

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.

—Singleremote SPST switch with maintained contact closure.

-Multiple remote SPST switches with momentary contact 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 Specifications: 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". It shall be made in the 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.

Dry Contact Control Connect to any physical switch or control system that will provide a maintained dry contact closure 2 conc. Voltage Control Connect to any device or control system that will provide a maintained voltage between 5 and 24 volts AC or DC. If DC, observe polarity: Common=Neg, Trigger Input=Pos. SEQ-4A Trigger Input 5V - 2kV AC or DC 24/DC Output 200mA max Common Switch 2 conc. SEQ-4A Trigger Input 5V - 2kV AC or DC 24/DC Output 200mA max Common Switch

Single Remote Switch Control Any Lowell RPSW or RPSB series maintained contact remote switch model (rocker or keylock) Schematic +24V Gm LED Com 2.2K 1.2kV Switch (Sw) Rassbr Rocker Switch On Key On 3 cond. SEQ-4A Trigger input 5w = 2kV AC or DC 24k DC Output 20mA max Cammoc Switch

Wire requirements: Any generic cable, shielding not needed
Maximum distance between devices: 22ga wire: 1 mile 18ga wire: 3 miles

graph LR
    A["OFF Ind."] --> B["Schematic"]
    C["ON Ind."] --> D["Red LED"]
    E["Switch (Sw)"] --> F["Gn LED"]
    G["V+"] --> H["2.2K 1/2W Resistor"]
    B --> I["Key Switch"]
    D --> J["Rocker Switch"]
    H --> K["4 cond"]
    I --> L["MSM2 Momentary Switch Module"]
    J --> L
    K --> L
    L --> M["Lowell™"]
    M --> N["Connect to either terminal"]
    N --> O["Connection to RPS"]
    O --> P["3 cond."]
    P --> Q["SEQ-4A"]
    Q --> R["Trigar Inlet: 5V - 24V AC or DC 24V DC Output 20mA max Common Switch"]

OUTPUT CONNECTION OPTIONS:

LOWELL POWER SEQ-4A: Sequencer Power Grid 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000 OPERATIONAL DIAGRAM Delay Settings ON ON Approx. 2½ sec. between steps 10 seconds total Approx. 5 sec. between steps 25 seconds total Approx. 12 sec. between steps 35 seconds total Approx. 8 sec. between steps 45 seconds total Approx. 12 sec. between steps 48 seconds total Control Relay (R/W), R/W/C Power Sequence Step RPC unit (any model) Lowell RPC Series Remote Power Control Unit Note: Any combination of RPC series models and/or RY series models may be connected to each sequencer step Maximum 75 units per sequence step. RY-2A or RY-4A Relay Module To additional RPCs and/or relay modules Step 1 connections shown Steps 2, 3, and 4 connections are identical. Wire requirements: Any generic cable, shielding not needed Maximum distance between sequencer and RPCs / relays: 22ga wire: 1 mile 18ga wire: 3 miles NOTE: Maintain polarity (switch to switch, com to com)

OPTIONS: (order separately)

- SWITCH for single switch applications: (RPS Series switch with maintained closure)

Model Description Model Description

RPSW-P 1 LED rocker switch, white wall plate RPSW-KP 1 LED key switch, white wall plate

RPSB-P 1 LED rocker switch, black wall plate RPSB-R 1 LED rocker switch, 19" panel

RPSB-KR 1 LED key switch, 19" panel RPSB-R-RJ 1 LED rocker switch, 19" panel, RJ45

RPSB-KR-RJ	1 LED key switch, 19" panel, RJ45	RPSW-P-RJ	1 LED rocker switch, white wall plate, RJ45
RPSW-KP-RJ	1 LED key switch, white wall plate, RJ45	RPSB-P-RJ	1 LED rocker switch, black wall plate, RJ45

- SWITCH for multiple-switch applications: (RPS Series switch with momentary closure and MSM2 module, see chart below)

Model Description Model Description

RPSW-MP	1 LED rocker switch, white wall plate	RPSW2-MP	2 LED rocker switch, white wall plate
RPSB-MP	1 LED rocker switch, black wall plate	RPSB2-MP	2 LED rocker switch, black wall plate
RPSB-MR	1 LED rocker switch, 19" panel	RPSB2-MR	2 LED rocker switch, 19" panel
RPSW-MKP	1 LED key switch, white wall plate	RPSW2-MKP	2 LED key switch, white wall plate
RPSB-MKP	1 LED key switch, black wall plate	RPSB2-MKP	2 LED key switch, black wall plate
RPSB-MKR	1 LED key switch, 19" panel	RPSB2-MKR	2 LED key switch, 19" panel
RPSB2-MP-RJ	2 LED rocker switch, black wall plate, RJ45	RPSW2-MP-RJ	2 LED rocker switch, white wall plate, RJ45
RPSB2-MKP-RJ	2 LED key switch, black wall plate, RJ45	RPSW2-MKP-RJ	2 LED key switch, white wall plate, RJ45
RPSB2-MR-RJ	2 LED rocker switch, 19" panel, RJ45	RPSB2-MKR-RJ	2 LED key switch, 19" panel, RJ45

- REMOTE POWER CONTROL: (RPC Series with classic connections)

Model Description Model Description

RPC-15	RPC with (2) 15A NEMA outlets, cord	RPC-15-S	RPC with (2) 15A NEMA outlets, surge supp, cord
RPC-15-SCD-RJ	RPC with (2) 15A NEMA outlets, cord, RJ45	RPC-15-U	RPC with (2) IEC C13 oulets, cord
RPC-20-CD	RPC with (2) 20A NEMA outlets, cord	RPC-20-SCD	RPC with (2) 20A NEMA outlets, surge supp, cord
RPC-20-SCD-RJ	RPC with (2) 20A NEMA outlets, surge supp, cord, RJ45	RPC-3N1	RPC with (8) 15A NEMA outlets, cord
RPC-20-HW	RPC with (2) 20A NEMA outlets, whip	RPC-20-SHW	RPC with (2) 20A NEMA outlets, surge supp, whip

RPC-30-SHW RPC with 30A Twistlock outlets, surge supp, whip

SEQ & SEQR Series Overview — sequencers with classic connections

	Model No.	Chassis	Steps	Alternate Sequence Mode	Onboard Switch	REQUIRES External Switch	ACCEPTS Multiple Remote Switches	ACCEPTS Input from Alarm System	ACCEPTS Input from Lowell Switch w/RJ45	Power Input	Country of Origin
This spec	SEQ-4A	standalone	4	---	---	yes	through MSM2	---	--- power supply	USA
	SEQ-8	standalone	8	---	---	yes	yes	---	---	power supply	USA
	SEQR-4	1U panel	4	---	rocker	---	yes	yes	---	power supply	USA
	SEQR-4K	1U panel	4	---	key	---	yes	yes	---	power supply	USA
	SEQR-8	1U panel	8	yes	rocker	---	yes	yes	---	power supply	USA
	SEQR-8K	1U panel	8	yes	key	---	yes	yes	---	power supply	USA
	SEQR-8RJ	1U panel	8	yes	rocker	---	yes	yes	yes	power supply	USA

Steps = Unit activates/deactivates connected remote power controls (RPCs) in four or eight steps, with a delay between each. Up to 10 RPCs can connect to each step.
Alternate Sequence Mode = The ASM feature skips selected outputs to allow partial startup of system, useful for small events or rehearsals. It requires remote switch model RPSB-KP-ASM to enable ASM function before main switch is activated.
Onboard Switch = Sequencers without an onboard switch will require an external switch for activation.
REQUIRES External Switch = Sequencer can be controlled by one external switch, usually placed in a remote location (RPS series switch with MAINTAINED closure).
ACCEPTS Multiple Remote Switches = Sequencer can be controlled by one or more external switches placed in remote locations (RPS Series switches with MOMENTARY closure). Some models require the MSM2 module in order to accept multiple switches.
ACCEPTS Input from Alarm System = Sequencer can accept control override from an alarm system (alarm by others, not included).
ACCEPTS Input from Lowell Switch w/RJ45 = Sequencer is designed for use with a Lowell MOMENTARY switch that has a model number with "-RJ" as a suffix (see options above). Note that these switches include a single RJ45 connector and are not part of Lowell's "pass-through" series.
NOTE: For rackmount sequencers that include AC power outlets, see Lowell ACR Series or ACSPR Series.