Honeywell CD3000M-2PH User Manual page 27

Honeywell
6.3.4 Calibration (only with HB option)
This procedure is necessary to give the Heater Break set point. The unit reads the load current
many times and when the value is the same for three times, takes it as set point.
Calibration procedure:
• verify that connections are correct;
• supply the thyristor unit;
• push "CAL" button on front of the unit (for S9 and S10) or on the
PCB board (for S14), or supply with 24Vdc terminals 15 (+) and 16
(-) or send command via RS485;
• the thyristor unit goes in conduction state to measure load current;
• all LEDS are ON, this means that calibration procedure is active;
• after one minute LEDS for H.B. and S/C switch off (calibration
procedure is done);
the thyristor unit is ready to work.
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CD3000M-2PH from 125A to 700A
24
User's Manual
Cal. for S9 and S10 sizes
Cal. for S14 size