Plena Message Manager Installation and Operating Manual External settings and connections
en 15
3.4 Trigger input connections
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| + | Msg Active | Trigger Input |
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| RS232 to LBB1925 | Apparatus delivered connected for 230V~ |
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| C |
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| 24V | NC | C | NO | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 115V~ | 230V~ 50/60Hz |
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| NC | NO |
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LBB 1965/00 |
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| Pilottone |
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| Fault |
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8900 196 5005 |
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| Mains |
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| Trigger Input | OFF |
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| WK |
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| Out |
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| S/N |
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| ON |
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Pilot | Message |
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| Warning | Power:50VA | ||
In | Out | 1 2 3 4 5 6 7 8 |
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| RS232 to PC | To.5L250V | ||||
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| This apparatus must be earthed | ||||||||
Tone |
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1 |
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| 10 |
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| 11 |
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| 10kΩ |
| 3.3kΩ |
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| 17 |
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Figure 3.4
Message sequences or announcements are started with make contacts (17). These make contacts are connected to the trigger input screw terminals (11). The cabling of the first six trigger input contacts (1 through 6) can have supervision by means of a window comparator. Normal operation of these inputs requires two series connected resistors of 10 kOhm and 3.3 kOhm, permanently connected to the far end of the cable connected to each trigger input. Triggering occurs by
Open or
Via the dipswitches 1 through 6 at the rear of the unit supervision of each individual trigger input (1 - 6) can be enabled ('ON') or disabled ('OFF'). When disabled these inputs act the same as inputs 7 through 12.
Via dipswitch # 7 it is possible to enable mains failure checking. When enabled ('ON') the fault indicator LED at the front will light up and the internal fault relay will go to the unpowered state upon mains failure, although the unit may continue to work on the 24 Vdc battery.
When disabled ('OFF') switching between mains and battery operation is automatic and will not be noticed.
Via dipswitch # 8 it is possible to switch ON a 20 kHz pilot tone to the output signal for supervision of the cable by connecting equipment. The level of the pilot tone is adjustable (from 'OFF' to