GE Industrial Solutions AMP1H5 - Manual (Page 17)

TM
AMP1H5 INSTALLATION GUIDE
ZL0115-0A PAGE 17 ©2013 For technical support please contact 01132
DET-785 our GE tech support team at 1-800-GE-1-STOP (1-800-431-7867)
Analog_Value Objects
Use the Present_Value property of the Analog_Value object for all writable variables in the meter other than those used specifically for BACnet configuration or Time
Synchronization (in the Device Object) or Data Logging (in the Trend_Log objects).
Values are checked when written, and errors are returned for invalid entries. This table describes how the meter uses those variables, what values are valid, and what their
defaults are. When writing values to the Present_Value properties of Analog_Value BACnet objects, there is a delay of up to about two seconds to validate and store the new
value. An immediate read of the same property before that delay has elapsed can return the prior value (even if the new value was accepted). To read a value immediately after
writing it, check the Reliability property first. When it reports a No_Fault_Detected status, the Present_Value of the object is current.
These objects support the Description and Reliability object properties and all required Analog_Value object properties, but Present_Value is the only writable property.
# Name Description R/W NV Units Range Factory
Default
Value
Additional information
AV1 Config Configuration R/W n/a n/a Always
returns
”0” when
read
Command Register:
- Write 30078 (0x757E) to clear all energy accumulators to 0 (All).
- Write 21211 (0x52DB) to begin new Demand Sub-Interval calculation cycle and log
another data value on Trend_Log objects TL1-TL3 (when the meter is in Manual
“Sync-to Comms” mode). This takes effect at the end of the next 1 second calculation
cycle. Write no more frequently than every 10 seconds.
- Write 21212 (0x52DC) to reset Max Demand values to Present Demand Values. Takes
effect at the end of the next 1 second calculation cycle. Write no more frequently
than every 10 seconds.
- Write 16498 (0x4072) to clear pulse counters to 0.
AV2 System_
Type
System Type R/W NV n/a 40, 31, 12,
11, 10
40 System_Type:
- Write 10 for Single-Phase: A + N
- Write 11 for Single-Phase: A + B
- Write 12 for Split-Phase: A + B + N
- Write 31 for 3-Phase Δ: A + B + C, no N
- Write 40 for 3-Phase Y: A + B + C + N
AV3 CT_Ratio_
Primary
CT Ratio -
Primary
R/W NV Amps 5-32000 200 Current Transducer Size - Primary Current Range (Default is set for 100 A CTs)
AV4 CT_Ratio_
Secondary
CT Ratio -
Secondary
R/W NV 1/Volts 1,3 3 Current Transducer Type – Secondary Interface
- Enter 1 for CTs with 1V outputs (Default)
- Enter 3 for CTs with 1/3V outputs
AV5 PT_Ratio PT Ratio R/W NV Value 0.01 - 320.0 1 Potential Transformer Ratio - The default is 1.00 (1:1), which is no PT attached. Set this
value before setting the System Voltage (below).
AV6 System_
Voltage
System
Voltage
R/W NV Volts from 82 (times
the PT_Ratio
in AV5) to
660 (times
the PT_Ratio
in AV5 -
absolute
limits are
82-32000)
480 System Voltage – This voltage is Line to Line unless in System Type 10 (in object AV2),
in which case it is Line to Neutral. This value is used to by the meter to calculate the
full scale power for the analog outputs and pulse configuration (see below), and as
full scale for phase loss (in object AV8). Do not set the meter to voltages outside the
range of 82-660 volts times the PT Ratio in object AV5.
AV7 Display_
Units
Display Units R/W NV n/a 0,1 1 Display Units: 0 = IEC (U, V, P, Q, S), 1 = IEEE (default: VLL, VLN, W, VAR, VA)
AV8 Phase_Loss_
Voltage_
Threshold
Phase Loss
Voltage
Threshold
R/W NV Percent 1-99 10 Phase Loss Voltage Threshold in percent of System Voltage (in object AV6). Default is
10 (10%). Any phase (as configured in AV2) whose level drops below this threshold
triggers a Phase Loss alert - i.e. if the System voltage is set to 480 V L-L, the L-N
voltage for each phase should be 277 V. When the threshold is set to 10%, if any
phase drops more than 10% below 277 V, (less than 249 V), or if any L-L voltage
drops more than 10% below 480 V (less than 432 V) the corresponding phase loss
alarm bit will be true.