Article number | 6ES7422-1FH00-0AA0 | 6ES7422-1HH00-0AA0 | 6ES7422-1BH11-0AA0 | 6ES7422-1BL00-0AA0 | 6ES7422-7BL00-0AB0 |
| SM422, 16DO, AC120/230V, 2A | SM422, 16DO, AC5-230V, 5A RELAY | SM422, 16DO, DC24V, 2A, | SIMATIC S7-400, SM 422 | SIMATIC S7-400, DIG.OUTPUT MOD. |
Supply voltage |
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Load voltage L+ |
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● Rated value (DC)
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| 60 V | 24 V | 24 V | 24 V |
● permissible range, lower limit (DC)
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| 1 V | 20.4 V | 20.4 V | 20.4 V |
● permissible range, upper limit (DC)
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| 60 V | 28.8 V | 28.8 V | 28.8 V |
Load voltage L1 |
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● Rated value (AC)
| 230 V; 120/230 V AC | 230 V |
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● permissible range, lower limit (AC)
| 79 V | 2 V |
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● permissible range, upper limit (AC)
| 264 V | 264 V |
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● permissible frequency range, lower limit
| 47 Hz |
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● permissible frequency range, upper limit
| 63 Hz |
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Input current |
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from load voltage L+ (without load), max. | 1.5 mA |
| 30 mA | 30 mA | 120 mA |
from backplane bus 5 V DC, max. | 400 mA | 1 A | 160 mA | 200 mA | 200 mA |
Power loss |
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Power loss, typ. | 16 W | 4.5 W | 5 W | 4 W | 8 W |
Digital outputs |
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Number of digital outputs | 16 | 16; Relays | 16 | 32 | 32 |
Short-circuit protection | Yes; Fuse 8 A, 250 V; per group | No | Yes; Clocked electronically | Yes; Clocked electronically | Yes; Clocked electronically |
● Response threshold, typ.
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| 2.8 to 6 A | 0.7 to 1.5 A | 0.75 to 1.5 A |
● required current for fuse shutdown, min.
| 100 A |
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● Response time, max.
| 100 ms |
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Limitation of inductive shutdown voltage to |
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| -30 V | -27 V | L+ (-45 V) |
Controlling a digital input | Yes; possible | Yes; possible | Yes; possible | Yes; possible | Yes; possible |
Size of motor starters according to NEMA, max. | Size 5 according to NEMA | Size 5 according to NEMA |
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Spare fuses | Fuse 8 A, 250 V, quick response |
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Zero-crossing switch | No |
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Switching capacity of the outputs |
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● on lamp load, max.
| 50 W | 60 W | 10 W | 5 W | 5 W |
Load resistance range |
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● lower limit
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| 24 Ω | 48 Ω | 48 Ω |
● upper limit
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| 4 kΩ | 4 kΩ | 4 kΩ |
Output voltage |
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● for signal “1”, min.
| L1 (-18.1 V) |
| L+ (-0.5 V) | L+ (-0.3 V) | L+ (-0.8 V) |
● for signal “1” (at max. current), min.
| L1 (-1.3 Vrms) |
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● for signal “1” (at min. current), min.
| L1 (-18.1 Vrms) |
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Output current |
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● for signal “1” rated value
| 2 A | 5 A | 2 A | 0.5 A | 0.5 A |
● for signal “1” permissible range, min.
| 10 mA |
| 5 mA | 5 mA | 5 mA |
● for signal “1” permissible range, max.
| 2 A |
| 2.4 A | 0.6 A | 600 A |
● for signal “1” permissible surge current, max.
| 50 A; per cycle |
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● for signal “0” residual current, max.
| 2.6 mA |
| 0.5 mA | 0.3 mA | 0.5 mA |
Output delay with resistive load |
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● “0” to “1”, max.
| 1 ms |
| 1 ms | 1 ms |
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● “1” to “0”, max.
| 1 AC cycle |
| 1 ms | 1 ms |
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Parallel switching of two outputs |
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● for uprating
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| No; Not possible | No; Not possible | Yes; possible (only outputs of the same group) | Yes; possible (only outputs of the same group) |
● for redundant control of a load
| Yes; Possible (only outputs with the same load voltage) | Yes; Possible (only outputs with the same load voltage) | Yes; possible (only outputs of the same group) | Yes; possible (only outputs of the same group) | Yes; possible (only outputs of the same group) |
Switching frequency |
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● with resistive load, max.
| 10 Hz | 10 Hz | 100 Hz | 100 Hz | 100 Hz |
● with inductive load, max.
| 0.5 Hz |
| 0.1 Hz | 0.5 Hz | 2 Hz |
● with inductive load (acc. to IEC 60947-5-1, DC13), max.
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| 0.2 Hz; 0.2 Hz at 1 A; 0.1 Hz at 2 A | 2 Hz; 2 Hz at 0.3 A; 0.5 Hz at 0.5 A | 2 Hz |
● with inductive load (acc. to IEC 60947-5-1, AC15), max.
| 0.5 Hz |
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● With inductive load (to IEC 60947-5-1, DC13/AC15), max.
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| 1 Hz |
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● on lamp load, max.
| 1 Hz | 1 Hz | 10 Hz | 10 Hz | 2 Hz |
● mechanical, max.
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| 20 Hz |
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