CN8240 & CN8260 Series Communications & Options
Relay, N.O.
Alarm Output
Option -AL1, -AL2: Relay, N.O. Alarm Output
Supply voltage*
Supply voltage*
| + | N.O. | 2 | 12 |
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| – | C | 3 | 13 |
| OUTPUT 2 |
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| + | N.O. | 4 | 14 |
Load | 5 amp fuse | N.O. | 5 | 15 |
| ALARM 1 |
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| C | 6 | 16 |
Load | 5 amp fuse | N.O. | 7 | 17 |
| ALARM 2 |
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| C | 8 | 18 |
| L1 | 9 21 | 2219 | |
| L2 | 1 | 2 | |
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| 0 | 0 | |
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Option Description: NO (Normally open) relay contact is closed when either alarm is active. The relay life is greater than 100,000 operations at 5 operations per second switching full load.
*Connect load and supply voltage per the following table:
Load Type | 5 A Voltage Limit |
Resistive dc | 30 Vdc |
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Inductive ac (L/R = 7 ms) | 20 Vdc |
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Resistive ac | 250 Vac |
Inductive ac (pF = 0.4) | 150 Vac |
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Motor, ac, 1/6 hp | 250 Vac |
Tungsten Lamp, 360 W | 120 Vac |
Communications
Option -C2: RS-232 (one-to-one) Communications
| RCV | XMT | SIG GND |
| RS |
| 232 |
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| 485 |
| A(+) | SIG GND | RS |
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| RCV | XMT | SIG GND |
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1 |
| 1 |
| 1 | |
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2 | 23 | 24 12 |
3 |
| 13 |
Option Description: Provides a
1