SEL-701-1 Monitor
Date Code 20011009
Installation
Monitor Connections
2.18
Analog Output
The SEL-701-1 Monitor single analog output provides a dc current level signal
proportional to any one of several monitor measurements. Monitor settings described
in
Analog Output Settings on page 3.43 in Section 3: Settings Calculation
allow you to
select the analog output range (0 –1 mA, 0 –20 mA, or 4 –20 mA). Connect the monitor
output to the input of your PLC or panel meter.
The maximum load for the analog output depends on the selected output range.
When you select 0–20 mA or 4–20 mA, the maximum load is 400 ohms. When you
select 0–1 mA, the maximum load is 8000 ohms.
Connect the analog output cable shield to ground at terminal B03 (SHLD), or at
the PLC or meter location. Do not connect the shield to ground at both locations.
Figure 2.15
Analog Output Wiring.
Internal RTD Connections (Monitor Models 0701110X & 0701111X)
The SEL-701-1 Monitor is available with 11 optional internal RTD inputs.
When the monitor is equipped with internal RTD inputs, you can enter monitor
settings that define the type, location, trip, and alarm temperatures for each input
individually. RTDs can measure the temperature of the motor stator windings, motor or
load bearings, ambient temperature, or other temperatures. The monitor can accurately
measure temperature represented by 100-ohm platinum, 100-ohm nickel, 120-ohm
nickel, or 10-ohm copper RTDs, but does not support temperature measurement using
thermistors or thermocouples.
The monitor supports three-lead RTDs, providing terminals for +, –, and common
leads. For best lead-resistance compensation, all three leads should be the same length
and wire gauge. Maximum lead resistance is 25 ohms for platinum and nickel RTDs
and 3 ohms for copper RTDs
Analog Output
B01
B02
B03
+
–
Shield
Meter
or
PLC
Содержание SEL-701-1
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