UNT Controller—Unitary (UNT) Controller
19
Table 6: Actuator VA Requirements
Actuator Type VA Requirements
EDA-2040 (ATP-2040)
Incremental 3 VA
VA-7150
2.7 VA
VA-7152
4.7 VA
VA-7153
Incremental or 0-10 VDC 2.7 VA
VA-7200
Proportional 5.5 VA
VA-7202
7.5 VA
VA-7203
5.5 VA
VA-8020
Incremental 4 VA
VA-8050
Incremental 6 VA
VA-8022
Voltage (0 to 10 VDC) 4 VA
VA-8052
Voltage (0 to 10 VDC) 6 VA
M120, M140, M150
Non-spring Return 20 VA
M110, M130
Spring Return 25 VA
M9100
Non-spring Return
Voltage (0 to 10 VDC)
7.5 VA
M9200
Spring Return
Voltage (0 to 10 VDC)
12 VA
Follow these precautions when wiring:
•
Make all wiring connections in accordance with the NEC as well as in
accordance with local regulations.
•
Locate equipment and route the wiring so that signal wiring is a
twisted pair, and separated from power wiring as much as possible.
•
Make all wiring connections to the UNT using only copper
conductors.
•
Daisy chain the N2. The use of “Y” or “T” bus topologies without a
repeater installed in the “T” may cause a loss of communications.
Do not use wire smaller than 22 AWG.
•
Do not run N2 Bus, Zone Bus, Analog Input (AI), Binary Input (BI),
Analog Output (AO), or Binary Output (BO) wiring in the same
conduit or bundle as line voltage wiring (30 VAC or above), or wiring
that switches power to highly inductive loads such as contactors,
coils, motors, or generators.
Notes: Shielded N2 Bus wiring can be run in the same conduit or bundle
as 24 VAC power wiring.
Zone Bus, AI, AO, and BI wiring can be run in the same bundle or
conduit, where convenient. If the binary output wiring is not wired
through other switches or contacts, you may also bundle it with the
other I/O wiring, where convenient.
Wiring
Precautions
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