Eaton IQ 250, Руководство пользователя и инструкция по установке

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A
IQ 250/260 Meter Appendix B:
Modbus Mapping
12
current FS = CT numerator * CT multiplier
voltage FS = PT numerator * PT multiplier
3 phase
power
FS = CT numerator * CT multiplier * PT numerator
* PT multiplier * 3 [ * SQRT(3) for delta hookup]
single
phase
power
FS = CT numerator * CT multiplier * PT numerator
* PT multiplier [ * SQRT(3) for delta hookup]
frequenc
y
FS = 60 (or 50)
power
factor
FS = 1.0
percenta
ge
FS = 100.0
angle FS = 180.0
13
14
15
16
17
18
19
A block of data and control registers is allocated for each option slot. Interpretation of the register data depends on what card is in the slot.
Combination of class and type currently defined are:
0x41 = Relay card
0x42 = Pulse card
0x81 = 0-1mA analog output card
0x82 = 4-20mA analog output card.
Only 1 input on all digital input cards may be specified as the end-of-interval pulse.
Measurement states: Off occurs during programmable settings updates; Run is the normal measuring state; Limp indicates that an essentail non-volatile memory block is corrupted; and Warmup occurs briefly (approximately
4 seconds) at startup while the readings stabilize. Run state is required for measurement, historical logging, demand interval processing, limit alarm evaluation, min/max comparisons, and THD calculations. Resetting
min/max or energy is allowed only in run and off states; warmup will return a busy exception. In limp state, the meter reboots at 5 minute intervals in an effort to clear the problem.
Limits evaluation for all entites except demand averages commences immediately after the warmup period. Evaluation for demand averages, maximum demands, and minimum demands commences at the end of the first
demand interval after startup.
There are 2 setpoints per limit, one above and one below the expected range of values. LM1 is the "too high" limit, LM2 is "too low". The entity goes "out of limit" on LM1 when its value is greater than the setpoint. It remains
"out of limit" until the value drops below the in threshold. LM2 works similarly, in the opposite direction. If limits in only one direction are of interest, set the in threshold on the "wrong" side of the setpoint. Limits are specified as
% of full scale, where full scale is automatically set appropriately for the entity being monitored:
THD not available shows 10000 in all THD and harmonic magnitude and phase registers for the channel. THD may be unavailable due to low V or I amplitude, delta hookup (V only), or IQ Model.
Option Card Identification and Configuration Block is an image of the EEPROM on the card.
www.eaton.com IB02601006E MM-27