CHAPTER 7: MODBUS COMMUNICATIONS MODBUS MEMORY MAP
PQM POWER QUALITY METER – INSTRUCTION MANUAL 7–63
TOTAL
HARMONIC
DISTORTION
ALARMS
1148 Average Current THD Relay 0 to 4 1 --- F29 0=OFF
1149 Average Current THD Level 5 to 1000 5 0.1 x % F1 100=10.0%
114A Average Current THD Delay 5 to 6000 5 0.1 x s F1 100=10.0 s
114B Average Voltage THD Relay 0 to 4 1 --- F29 0=OFF
114C Average Voltage THD Level 5 to 1000 5 0.1 x % F1 100=10.0%
114D Average Voltage THD Delay 5 to 6000 5 0.1 x s F1 100=10.0 s
114E Reserved
to ↓ ↓ ↓ ↓ ↓ ↓
1157 Reserved
FREQUENCY
ALARMS
1158 Underfrequency Relay 0 to 4 1 --- F29 0=OFF
1059 Underfrequency Level 2000 to
7000
1 0.01 x Hz F1 40.00 Hz
115A Underfrequency Delay 1 to 100 1 0.1 x s F1 100=10.0 s
115B Zero Frequency Detect 0 to 1 1 --- F11 0=DISABLE
115C Overfrequency Relay 0 to 4 1 --- F29 0=OFF
115D Overfrequency Level 2000 to
12500
1 0.01 x Hz F1 70.00 Hz
115E Overfrequency Delay 1 to 100 1 0.1 x s F1 100=10.0 s
115F Reserved
to ↓ ↓ ↓ ↓ ↓ ↓
1166 Reserved
POWER
ALARMS
1167 Power Alarms Level Base Units 0 to 1 1 --- F114 0=kW/kVAR
1168 Positive Real Power Relay 0 to 4 1 --- F29 0=OFF
1169 Positive Real Power Level in kW 1 to 65000 1 kW F1 1000 kW
116A Positive Real Power Delay 5 to 6000 5 0.1 x s F1 100=10.0 s
116B Negative Real Power Relay 0 to 4 1 --- F29 0=OFF
116C Negative Real Power Level in kW 1 to 65000 1 kW F1 1000 kW
116D Negative Real Power Delay 5 to 6000 5 0.1 x s F1 100=10.0 s
116E Positive Reactive Power Relay 0 to 4 1 --- F29 0=OFF
116F Positive Reactive Power Level in kVAR 1 to 65000 1 kVAR F1 1000 kVAR
1170 Positive Reactive Power Delay 5 to 6000 5 0.1 x s F1 100=10.0 s
1171 Negative Reactive Power Relay 0 to 4 1 --- F29 0=OFF
1172 Negative Reactive Power Level in kVAR 1 to 65000 1 kVAR F1 1000 kVAR
1173 Negative Reactive Power Delay 5 to 6000 5 0.1 x s F1 100=10.0 s
1174 Positive Real Power Level in MW 1 to 65000 1 0.01 MW F1 10.00MW
1175 Negative Real Power Level in MW 1 to 65000 1 0.01 MW F1 10.00MW
1176 Positive Reactive Power Level in MVAR 1 to 65000 1 0.01 MVAR F1 10.00MVAR
1177 Negative Reactive Power Level in MVAR 1 to 65000 1 0.01 MVAR F1 10.00MVAR
Table 7–10: PQM Memory Map (Sheet 47 of 55)
GROUP ADDR
(HEX)
DESCRIPTION RANGE STEP
VALUE
UNITS and
SCALE
FORMAT FACTORY
DEFAULT
Notes:* Data type depends on the Command Operation Code.** Any valid Actual Values or Setpoints address.
*** Maximum Setpoint value represents “OFF”.**** Minimum Setpoint value represents “OFF”.
***** Maximum Setpoint value represents “UNLIMITED”.****** Applicable to older revisions with VFD display only
Courtesy of NationalSwitchgear.com
To Next Page
Loading...
