Neptune Technology TRICON SmartTrol, Руководство по установке и обслуживанию

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TRICON
®
SmartTrol
™
Installation and Maintenance Guide
15
Chapter 7: Connections to the SmartTrol™
This chapter provides information on the various connections to the SmartTrol™.
Power Connection For Alternating Current (AC)
Be certain to remove all power from the wire before connecting the power wiring to the
SmartTrol. Also be sure that the power is 120 VAC to prevent damage due to application of
incorrect voltage. Connect the AC power across terminals 17 and 18 on the large terminal
block. Double-check all wiring before applying power to the SmartTrol. See Figure 4 on
page 16.
Power Connection for Direct Current (DC)
You may choose to power the SmartTrol with DC. Be certain to remove all power from the
wire before connecting the power wiring to the SmartTrol. Also be sure that the power is
12 to 27 VDC at .5 amp. CDC to terminal 14 and ground to terminal 12 on the
large terminal block. Double-check all wiring before applying power to the SmartTrol. If the
SmartTrol is powered by DC, it cannot be used to provide DC power for TRICON/E
®
operation. Use the same DC source to power both the SmartTrol and associated TRICON/E
transmitters. See Figure 8 on page 19.
Relay Output Connection
Be certain to de-energize all power wiring before connecting relay outputs to controlled
devices. The relay contacts are located on the six-pin terminal block. The relay associated
with Preset A uses terminal 1 (normally open contact), 2 (normally closed contact), and 3
(common contact). The relay associated with Preset B uses terminals 4 (normally open
contact), 5 (normally closed contact), and 6 (common contact). See Figure 4 on page 16
and Figure 8 on page 19.
4-20 mA Option
The 4-20 mA output option is connected to terminal 10 of the large terminal block. The
output syncs current from a voltage source. DO NOT ground-reference the receiving
instrument (Ammeter) to be compatible with this output. See Figure 7 on page 18.
Schematics
The following pages illustrate the SmartTrol in various configurations and wiring for each.
Your specific application may not be represented, but it may be a composite of several of
the illustrations provided.