6
3.2.1
Up/Down Sequence Control Inputs
The SEQ can be controlled by a DC voltage in the range 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 (such as 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 Voltage: 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)
Contact Closure: 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)
One Momentary Switch: The SEQ will power up when the switch is pressed once and
power down when the switch is pressed a second time. Connect the two wires from the
switch to “up” and “common”. Program the input for “One Momentary”.
d)
Two Momentary Switches: 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 “Two Momentary”.
e)
Center-Off Switch: 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 “Two Momentary”.
Pin 1 – Up Input
Pin 2 – Down Input
Pin 3 – Over-Ride Input
Pin 4 – 12 V dc Output
Pin 5 – Common
Pin 6 – Aux Relay Contact
Pin 7 – Aux Relay Contact
