2 remote control connections, 1 up/down sequence control inputs, Seq/seq-1u user manual – SurgeX SX-2120 User Manual

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SEQ/SEQ-1U

User Manual

Software Version 2.0

3.2 Remote Control Connections

Remote connections are wired to the green 7-pin plug-in Phoenix terminal block on the rear of the unit next to the

power cord. The terminal block itself is shipped in the accessory bag. After you have made the connections to the

terminal block, plug it into the connector on the rear of the unit. Never solder (tin) wires before inserting in a

terminal block – solder creeps and you will eventually have loose connections!

The connections are shown here:

3.2.1 Up/Down Sequence Control Inputs

The SEQ can be controlled by a DC voltage in the range of 5V to 30V, by a contact closure (such as a

relay), or by a switch. In this manual the terms “momentary” and “latching” are used when describing

switches. A momentary switch is considered to be a switch which provides a connection only while it is

actually held pressed, and a latching switch is considered to be a switch which remains in either the on

or the off state (like a light switch). Momentary switches are preferred for use with the SEQ since

multiple control locations can be used, and also because some of the functions of the SEQ are not

available when a latching switch is used (see programming section). Switches with gold contacts are

recommended for the best long-term reliability. The type of input is selected totally through

programming, making the electrical connections straightforward. The six control options are discussed

below:

a) DC

OLTAGE

: The SEQ will power up when the voltage is present and power down when there is no

voltage. Connect the positive wire to the “Up” input, and the ground (or negative) wire to “Common”.

Program the input for “5-30 V DC”.

b) C

ONTACT

LOSURE

: The SEQ will power up when the contacts are closed and power down when

the contacts are open. Connect the two wires from the contacts to “Up” and “Common”. Program

the input for “Latching”.

c) M

OMENTARY

WITCH

(

): The SEQ will power up when a switch is pressed once and power down

when a switch is pressed a second time. Connect the two wires from the switch(es) to “Up” and

“Common”. Program the input for “Momentary”.

d) S

EPARATE

OWN

WITCHES

: The SEQ will power up when the UP switch is pressed and power

down when the DOWN switch is pressed. Connect the two wires from the UP switch to “Up” and

“Common”, and the two wires from the DOWN switch to “Down” and “Common”. Program the input

for “Separate Up & Down”.

e) C

ENTER

-O

WITCH

: The SEQ will power up when the switch is pressed to the UP position and

power down when the switch is pressed to the DOWN position. Connect the wire from the UP

terminal to “Up”, the wire from the DOWN terminal to “Down”, and the wire from the COMMON

terminal to “Common”. Program the input for “Separate Up & Down”.

f) L

ATCHING

WITCH

: The SEQ will power up when the switch is closed and power down when the

switch is open. Connect the two wires from the switch to “Up” and “Common”. Program the input for

“Latching”.

Note: The front panel button will not operate with options a, b or f

Pin 1 – Up Input

Pin 2 – Down Input

Pin 4 – 12 V DC Output

Pin 5 - Common

Pin 6 – Aux Relay Contact

Pin 7 – Aux Relay Contact

Pin 3 – Over-Ride Input

This manual is related to the following products:

SEQ SEQ-1U