PERCo CT/L-04.2, Assembly And Operation Manual

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Assembly & Operation Manual
Note:
If according to the configuration, input of the controller is used for connection of the
RC-button, that it is configured as “Opened” without any possibility being modified.
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 collector output should provide following
characteristics of signals:
Voltage at the closed contact
(low-level signal at input of the controller .................................................... max. 0.8 V
5.7.2 “AL” input configuration
Jumper XP9 (for Ш C1 ) or XP10 (for Ш C2 ) is in the position 1-2.
Only security detectors may be used as detectors, connected to alarm line:

Electrical contact detectors and magnetic contact detectors (reed switches, fuses);

Those that have relay on output (4-wire line).
Table 3. Status and thresholds of alarm line
Alarm line resistance, Ohm Status of alarm line defined by a device
Configuration: “Security”
Less than 2 kOhm Violation – short circuit
2,4 kOhm - 7 kOhm Normal
More than 9 kOhm Violation – line break
Configuration: “Security with tamper-evidence examination of detectors housings”
Less than 1,3 kOhm Violation – short circuit
1,5 kOhm - 2,3 kOhm Normal
2,5 kOhm - 3,6 kOhm Violation – detector housing is opened
4 kOhm - 6 kOhm Violation – detector activation
More than 7 kOhm
Violation – detector activation and detector housing is opened or
line break
Specifications of input signals of alarm line:
Voltage in alarm line .................................................................................................... 5 V
Short circuit current in alarm line ................................................................... max. 12 mA
Resistance of remote element .......................................................................... 4.7 kOhm
Resistance of alarm line wires
(without regard to resistance of remote element) .................................... max. 1 kOhm
Resistance of alarm line wires during tamper-evidence examination of detectors
housings (without regard to resistance of remote element)
................ max. 0.22 kOhm
Leakage resistance between alarm line wires and “ground”....................... min. 20 kOhm
Note:
Alarm line specifications are controlled by their resistance.
AL integration time – maximum period of time during which the change of alarm line
resistance is not regarded as a violation and does not cause the turn of alarm line into
alarm state.
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