Relays
There are two relay ports, which share a common ground. These ports may be used to control
any equipment as long as the contact specifications of a total of 24 V at 1 A are not exceeded for
each port. These relays are normally open by default.
When activated, the open contacts close. They can be set up to operate in one of two ways:
•
Latching (brief or indefinite period contact) (press to close, press to open), or
•
Pulsed (timed cycle) (press to close, timeout to open, with automatic repeat).
In pulse mode the default timeout period (hold time) is 0.5 second (500 ms). This time can be
changed with Global Configurator.
NOTE:
The pulse function is absolute: it always sets the relay state to closed, times out
(briefly), then opens the contact. It overrides the previously selected setting (on state, off
state, or toggle).
To use a single relay port connect Pin 3 (Common) and either Pin 1 (Relay
1
) or Pin 2 (Relay
2
)
to the device being controlled. To use both relay ports, connect the pins as shown in figure 13.
Pin 3 (
C
) must be connected to both devices being controlled.
Normally
Open (2)
Common
Normally
Open (1)
Common
All relays are
normally open.
To Room
Control
Equipment
Common
Relay 2
Relay 1
12
C
RELA
YS
Figure 13.
Relay Ports
TLC Pro 526M, 726M, and 1026M Series TouchLink Pro Control Systems • Panel Features
15
