LINK Systems OmniLink II Press Automation Control - Manual (Page 144)

August 30, 2002 Manual Version 1.0 7.7
Section 7.4.4.1 Electromechanical Relay Wiring
Each electromechanical relay has both normally open and normally closed contact sets available. These
contact set share the same common. The normally open contacts will close when the channel output is
On, and will open when the channel output is Off. The normally closed contact will open when the
channel output is On and will close when the channel output is Off. Each relay contact set is fused. See
Specifications, Section 7.2, for fuse information.
Section 7.4.4.2 Solid State AC Relay Wiring
Each Solid State Relay Output board can accept eight solid state relays. These relays can be either AC
(black) of DC (red). It is important that the required relay is in the correct channel position. Wiring AC
solid relays in DC solid state relay applications or wiring DC solid state relays in AC solid state relay
will result in incorrect operation and possible damage to equipment.
Two terminals are available for each solid state AC relay. These contact will close when the channel
output is on and will open will the channel output is off. The “-” and “+” designations on the terminal
blocks do not apply to solid state AC wiring. These designations should be ignored.
Each solid state relay output is fused. See Specifications, Section 7.2, for fuse information.
Section 7.4.4.3 Solid State DC Relay Wiring
Each Solid State Relay Output board can accept eight solid state relays. These relays can be either AC
(black) of DC (red). It is important that the required relay is in the correct channel position. Wiring AC
solid relays in DC solid state relay applications or wiring DC solid state relays in AC solid state relay
will result in incorrect operation and possible damage to equipment.
Two terminals are available for each solid state DC relay. These contact will close when the channel
output is on and will open will the channel output is off. The “-” and “+” terminal designations must be
observed when wiring solid state DC wiring.
Each solid state relay output is fused. See Specifications, Section 7.2, for fuse information.
Section 7.5 PLS Modes and Special Features
Each PLS channel can be programmed for Always Off, Always On, Normal, Timed Off, or Toggle
mode. Each mode is described in the following sections. It must be noted that all modes are available to
all channels.
Certain modes can have special features available to them. These special features are counted outputs
and speed advanced outputs.
Section 7.5.1 Always Off Mode
When programmed for Always Off mode, the PLS channel output is always turned off. If a channel is
not be used, it should be set to Always Off.