| Voltage Connection Terminal |
| Terminal name1 |
Source(S) +, - / Load(L) +, - |
| Connector type |
Busbar type |
|
Voltage range
|
DC 12 — 60 V |
Accura 2350-DCM-50V Stand-alone operation |
| DC 0 — 60 V |
Accura 2350-DCM-50V Link operation |
| DC 0 — 550 V |
Accura 2350-DCM-500V Link operation |
| Internal busbar |
12 x 3 mm |
SEMS Bolt M5 x 10 |
| Power Supply |
|
Power
|
Receives power from Accura 2300[S] via the RJ12 communication line |
| Busbar2 DC 12 — 60 V |
Accura 2350-DCM-50V Stand-alone operation |
|
Power consumption
|
125 mA when connected to Accura 2300[S] via the RJ12 communication line3 |
| 40 mA @ DC 12 V Busbar |
Accura 2350-DCM-50V Stand-alone operation |
| 12 mA @ DC 48 V Busbar |
| Voltage Measurement |
| Sampling time |
1 ms |
|
Measurement aggregation
|
Aggregates data for 20 ms 4based on the data measured over 1 ms |
Window aggregation: 1 — 32 ms (default: 20 ms) |
| Aggregates data for 0.5 seconds5 based on the data measured over 20 ms |
| Accuracy |
±0.5% Reading ±0.03% Un6 |
|
Measuring range(accuracy guaranteed)7
|
DC 3 — 60 V |
Accura 2350-DCM-50V |
| DC 30 — 550 V |
Accura 2350-DCM-500V |
|
Minimum measurement7, 8 |
DC 0.2 V |
Accura 2350-DCM-50V |
configurable |
| DC 2 V |
Accura 2350-DCM-500V |
configurable |
|
Maximum measurement |
DC 60 V |
Accura 2350-DCM-50V |
| DC 550 V |
Accura 2350-DCM-500V |
| Current Measurement |
| Sampling time |
1 ms |
|
Aggregation of measurement data
|
Aggregates data for 20 ms4 based on the data measured over 1 ms |
Aggregation window: 1 — 32 ms (default: 20 ms) |
| Aggregates data for 0.5 seconds 5 based on the data measured over 20 ms |
| Accuracy |
±0.5% Reading ±0.06% Ib9 |
| Measuring range(accuracy guaranteed) |
DC 0.8 — 80 A |
| Min. measured value8 |
DC 0.08 A |
Configurable |
| Max. measured value |
DC 100 A |
| Temperature drift10 |
±0.02% Full scale/℃ typ. |
Based on Calibration temperature of 25°C |
FS = 100 |
| Power / Energy Measurement |
| Aggregation of measurement data |
Aggregates Power/Energy measurement data for 0.5 seconds5 |
| Accuracy |
±1.0% Reading ±0.15% Un*Ib |
Based on voltage/current measurement accuracy |
| Event |
| Number of event channels |
5 channels (channel 1, 2, 3, 4, 5) |
| Event type |
Off / Over11 / Under12Selectable (default: Off) |
Configurable for each channel |
| Monitoring signal |
Voltage / Current Selectable |
Configurable for each channel |
| Operation linked with Digital Output |
DO operation mode when an event occurs: Disable / Enable |
Configurable for each channel |
| Time resolution |
20 ms |
Aggregates voltage and current data4 for 20 ms |
|
Event data
|
Duration time, Max/Min |
Stored in non-volatile memory |
| Waveform data measured for 1.5 seconds (20 ms time resolution) |
Stored in volatile memory |
| Digital Output(DO) |
| Terminal name |
DO, DOG |
Connector type |
Screw-type terminal |
| Wire specifications |
0.14 — 2.5 mm2 (26 — 14 AWG), copper |
|
Output type
|
Latch, Periodic Pulse |
| Uncountable Pulse, Countable Pulse13 |
| Min. Pulse period |
0.2 sec |
| Min. Pulse on-time |
0.1 sec |
| Isolation |
AC 2,500 V for 1 minute |
| Maximum rating |
AC/DC 400 V 350 mA (max. 1 A) |
| General |
|
Weight
|
242 g |
Except mounting wings: L/S |
| 245 g |
With mounting wings: L/S |
| Operating temperature |
-20 — 70℃ (-4 — 158 ℉) |
| Safe operating temperature14 |
-20 — 60℃ (-4 — 140 ℉) |
| Storage temperature |
-40 — 85 ℃ (-40 — 185 ℉) |
| Operating humidity |
5 — 95 % (non-condensing) |
| Operating altitude |
Up to 2,000 m |
1. The power source side and the load side are indicated as S and L, respectively.
Connections should be made properly according to the indicated polarity(+/-). When the polarity is connected in
reverse, voltage and current are measured as negative values.
2. The DCM-50V module receives power via the DC voltage busbar during stand-alone operation.
3. The number of DCM modules that can be connected to Accura 2300[S] is limited to 10(5 modules connected to each
of RJ12-1 and RJ12-2 ports).
4. Over/Under events are detected by monitoring the voltage/current data aggregated over 20 ms intervals.
5. In addition to the data obtained at 0.5–second aggregation intervals, the data aggregated over 1 second is also
provided. Refer to the aggregation section of Accura 2300[S] User Guide for details.
6. The rated voltages(Un) of the DCM-50V and the DCM-500V modules are 50 V and 500 V , respectively.
7. The minimum DC voltage for the stand-alone operation of the DCM-50V module is 12 V , and a value below 12 V is not measured.
8. The measured value below the configured minimum measured value is processed as zero.
9. The rated current(Ib) of the DCM-50V and the DCM-500V modules is 80 A .
10. Measured current values may involve errors as the temperature changes based on the calibration temperature.
11. An Over voltage/current event occurs when the measured value exceeds the threshold and is maintained during the delay time.
12. An Under voltage/current event occurs when the measured value exceeds the threshold 2 value and falls below the threshold 1 value
during the set delay time.
13. A pulse features the pulse period and pulse on time.
14. Compliant with the UL 61010-1 standard (3rd edition)
