PERCo CT/L-04.2, Assembly And Operation Manual

Page: 14 / 70

CT/L-04.2 Controller
Signals activation depends on description of their default status in Normal status of
contact parameter in PERCo-Web software):

If input is described as Opened , it is activated by a turn-on of low-level signal
relative to GND contact. In such case a normally opened relay contact or a scheme
of open collector output may be a control element.

If input is described as Closed , it is activated by a turn-off of low-level signal relative
to GND contact. In such case a normally closed relay contact or a circuit of open
collector output may be a control element.
Note:

Input IN1 is configured as “Closed” by default.

If according to the configuration of the controller input IN2, IN3 or IN4 is used to
connect the door sensor / passage sensor / PASS, that by default is configured
as
Closed with the possibility of further changes.
Control element “relay contact” should provide following characteristics of signals:
Minimum commutating current ........................................................................ max. 1 mA
Closed contact resistance
(with resistance of the connection cable)................................................ max. 300 Ohm
Control element of circuit with open drain output should provide following characteristics of
signals:
Voltage at the closed contact
(low-level signal at input of the controller)...................................................... max. 0.8 V
5.5.2 Inputs DUA , DUSt , DUB , FA
The controller provides status control of four inputs under control of “dry contact” or “open
collector” (
OK ): DUA, DUSt, DUB, FA . Connection to the inputs is performed via XT2
connecting block of the controller bottom board.
Note:
To create a high-level signal on all input contacts DUA, DUSt, DUB, FA, resistors
with 1 kOhm resistance, connected to +3,3V power line, are used.
Inputs can be used for following connections:

DUA, DUSt, DUB:
o
RC-buttons,
o
RC-panel (WRC),

DUSt, DUB:
o
optional equipment (IN #7, IN #8);

FA:
o
emergency unlock devices (passage opening) Fire Alarm.
Activation and characteristics of signals of the control element are specified in the
Sect. 5.5.1.
Note:

Input FA is uniquely configured as “Closed”.

Input DUA is uniquely configured as “Opened”.

If according to the configuration of the controller input DUSt or DUB used to
connect RC-buttons, it is uniquely configured as Opened without any possibility
being modified.
13