The following figure displays the physical features of a VMA , and the accompanying table provides a description of the physical features and a reference to further information where required.
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Physical Features: Description and References |
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1 |
24 VAC, Class 2 Supply Power Terminal Block (see Supply power terminal block) |
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2 |
Device Address DIP Switch Block (see Setting the device address) |
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3 |
Binary Outputs, 24 VAC Triacs (see Communication bus and supply power table) |
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4 |
Configurable Outputs: Voltage Analog Output (0–10 VDC) and Binary Output (24 VAC Triac) (VMA 1630, 1626, and 1628 only) (see Communication bus and supply power table) |
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5 |
Dual Port Fitting (see Figure 1) |
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6 |
Manual Override Button (see Mounting for information on using manual override Button) |
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7 |
Controller Coupler (see Mounting for information on using the controller coupler) |
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8 |
Coupler Bolt (see Mounting for information on setting the coupler bolt) |
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9 |
Universal Input: Voltage Analog Input (0–10 VDC) Resistive Analog Inputs (0–600k ohm) 0–2k Potentiometer RTD: 1k Nickel, 1k Platinum, or A99B SI NTC: 10K Type L (10K Johnson Controls Type II is equivalent to Type L) or 2.252K Type II Dry Contact Binary Input |
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10 |
FC Bus Terminal Block. May also be used for N2 connections. (see FC bus terminal block (Or N2 protocol as required)) |
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11 |
EOL (End-of-Line) Switch (see Setting the EOL switch) |
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12 |
SA Bus Terminal Block |
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13 |
Modular Port (FC Bus) RJ-12 6-Pin Modular Jack (see Modular ports) |
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14 |
Modular Port (SA Bus) RJ-12 6-Pin Modular Jack (see Modular ports) |
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15 |
Captive Spacer and Screw (see Figure 1) |
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16 |
LED Status Indicators (see Table 1) |