3 analog output (current loop) – Pulsafeeder Pulsar ECA NEMA4X User Manual

Page 22

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6.8.3

Analog Output (current loop)

The Analog Output sends a signal representing the actual stroke length position. It can
be adjusted to source current in the 0 to 25 mA range (4-20mA factory default). The
output can also be set up for reverse-acting or split-ranging operation. The Current
Output can be used to control slave devices (e.g. ECA’s, ELMA's, PULSAMATICs,
etc.) or to fulfill closed loop system requirements. Use shielded cable (minimum 2-
conductor) for connection to the analog output. Recommended: use shielded cable,
22AWG, 3-pair, and 6-conductor for connections (e.g. Belden 5545FE). Attach the
positive lead to terminal J4-3 and the negative lead to terminal J4-4 (see Figure 5).
Position indicators are printed on the circuit board below each terminal. Remove
approximately 0.3 inches, (7-8mm) of insulation from the end of each conductor.
Loosen the terminal strip screw, and insert the stripped wire end fully into the terminal.
Tighten the screw to 5 in-lbs. (0.5 Nm) to secure the conductor. Make certain that the
terminal grips the wire, not the insulation. The Analog Output will drive a maximum
load of approximately 700 ohms. The Analog Output is electrically isolated from all
other inputs, outputs, and earth ground.

Note: Analog Input and Analog Output wiring should have a rating of at least 300 volts AC
(rms) and a temperature rating of at least 75 Degrees C.

Note: If strip length guidelines in above sections are not followed, there is a risk of electric
shock as well as shorting of adjacent connections generating hazardous sparks.

Figure 5

Ref. Section Analog

Output

Ref. Section Analog

Input

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