Technical features – Carlo Gavazzi WM3-96 User Manual

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Technical features

Serial output

ALARMS: (on request)
• Number of outputs: up to four, independent
• Alarm type: up alarm, down alarm, up alarm with latch, down

alarm with latch, phase asymmetry, phase loss, neutral loss.

• Set-point adjustment: 0 to 100% of the electrical scale
• Hysteresis: 0 to 100% of the electrical scale
• On time delay: 0 to 255s
• Relay status: selectable, normally close or normally open.
• Output type: relay, SPDT; AC 1-8A, 250VAC; DC 12-5A,

24VDC; AC 15-2.5A, 250VAC; DC 13-2.5A, 24VDC.

• Min. response time:

≤

150ms, filter excluded, set-point on-

time delay: 0

• Insulation: 4000 Vrms output to measuring inputs,

4000 Vrms output to power supply input.

• Note: the outputs can be either relay type or open collector

type (for the latter type of output see the features mentioned
in the PULSE OUTPUT paragraph).

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Software functions

PASSWORD: numeric code of max 3 digits;
• 2 protection levels of the programming data
• 1st level - Password "0", no protection.
• 2nd level - Password from 1 to 499, all data are protected.
MEASUREMENT SELECTION: see the relevant table.
TRANSFORMER RATIO:
for CT up to 30,000A; for VT up to 600kV.
SCALING FACTOR:
Operating mode:
• Electrical scale: compression/expansion of the input scale to

be connected to up to 4 analogue outputs.

• Operating range: programmable within the whole measuring

range.