Description of 1746-NO8I
Technical specifications for 1746sc-NO8I
| Brand | Spectrum Controls |
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| Series | SLC |
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| Manufacturer | Spectrum controls |
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| Part Number | 1746SC-NO8I |
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| Part Number/Catalog No. | 1746sc-NO8I |
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| Product type | Analog current output module |
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| Module Type | Analog output module |
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| Compatibility | Allen Bradley SLC 500 |
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| No. of output | Eight (8) |
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| Cable | Belden 8761 |
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| Output signals | 0-20 mA; 4-20 mA |
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| Terminal screw torque | 7 lb-in to 9 lb-in |
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| Module resolution | 16-bit |
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| Wire size | Maximum 14 AWG |
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| Slot width | 1-slot |
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| Mounting location | any slot of 1746 chassis except slot |
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| Backplane Current consumption | 120mA at 5 VDC and 240 mA at 24 VDC |
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| Recommended cable | Belden 8761 (shielded, twisted-pair) or equivalent |
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| Operating Temperature | 0°C to +60°C (+32°F to +140°F) |
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| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
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| Operating Humidity | 5 to 95% non-condensing |
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The Allen Bradley 1746-NO8I SLC 500 Analog output module is part of
the Allen Bradley SLC 500 series. The 1746-NO8I is just a single
version of the SLC 500 8-point Analog Output Module. This unit has
removable block terminals and still provides connection for 8
analog output channels. It is uniquely designed for connections to
the analog voltage and current devices, with eight (8) provided
channels for output voltage although it does not contain an input
channel.
The 1746-NO8I does not contain a DIP switch. A J4 or a Jumper may
be required to selected whether the SLC backplane will be supplied
by 24 Volts of DC (Direct Current) or by an external, optional 24
Volts of power. The SLC 500 chassis is used to provide power to
this module from either the 5 Volt DC or the 24 Volt DC power
supply. In the case of a 24 Volt supply, this power also supplies
the analog circuit module while the SLC circuit is supplied by the
5 Volt DC supply backplane.
The 1746-NO8I output module consumes a maximum backplane current of
120 mA at 5 Volts DC while at 24 Volts, the Direct Current of this
module consumes 250 mA. Before installing the jumper, turn off the
entire power system.
Each terminal on this module requires a wire no larger than 24 AWG
and no smaller than 14. Its output has a range of 0 mA up to
approximately 21.5 mA, and its proportional scaling can reach (from
0) up to 32,767.
With a step response of one (1) millisecond, a 540 microsecond
update time and a resolution of 16 bits in and 14 bits out, this
module has an output impedance of at least 1 M Ohm.
For protection of the module’s functions, do not operate this unit
in a temperature zone lower or higher than -13 to 140 degrees
Fahrenheit. While being stored, this unit should stay in a
temperature zone of approximately -40 to 185 degrees Fahrenheit.
