| Voltage Connection Terminal |
| Terminal name1 |
Source(S) +, - / Load(L) +, - |
| Connector type |
Busbar terminal |
|
Voltage range
|
DC 12 - 60 V |
Accura 2350-DCM-50V Stand-alone operation |
| DC 0 - 60 V |
Accura 2350-DCM-50V Linked operation |
| DC 0 - 550 V |
Accura 2350-DCM-500V Linked 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 cable |
| 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 cable3 |
| 40 mA @ DC 12 V busbar |
Accura 2350-DCM-50V Stand-alone operation |
| 12 mA @ DC 48 V busbar |
| Voltage Measurement |
| Sampling time |
125 µs |
Provides the data measured at a 1 ms interval by averaging 8 sampled values |
|
Aggregation of measurement data
|
Aggregates the data measured at 1 ms intervals over 10 ms4 |
Time interval for window aggregation: 1 - 32 ms (default: 10 ms) |
| Aggregates the data measured at 10 ms intervals over 0.5 s5 |
| 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 measured value7, 8 |
DC 0.2 V |
Accura 2350-DCM-50V |
Configurable |
| DC 2 V |
Accura 2350-DCM-500V |
Configurable |
|
Maximum measured value |
DC 60 V |
Accura 2350-DCM-50V |
| DC 550 V |
Accura 2350-DCM-500V |
| Current Measurement |
| Sampling time |
125 µs |
Provides the data measured at a 1 ms interval by averaging 8 sampled values |
|
Aggregation of measurement data
|
Aggregates the data measured at 1 ms intervals over 10 ms4 |
Time interval for window aggregation: 1 - 32 ms (default: 10 ms) |
| Aggregates the data measured at 10 ms intervals over 0.5 s5 |
| Accuracy |
±0.5 % Reading ±0.06 % Ib9 |
| Measuring range (accuracy guaranteed) |
DC 0.8 - 80 A |
| Minimum measured value8 |
DC 0.08 A |
Configurable |
| Maximum measured value |
DC 100 A |
| Temperature drift10 |
±0.02 % FS/℃ typ. |
Based on the calibration temperature of 25 ℃ |
FS = 100 A |
| Power/Energy Measurement |
| Aggregation of measurement data |
Aggregates Power/Energy measurement data over 0.5 s5 |
| Accuracy |
±1.0 % Reading ±0.15 % Un*Ib |
Based on voltage/current measurement accuracy |
| Event |
| Number of event channels |
5 (Channel 1, 2, 3, 4, 5) |
| Event type |
Off / Over11 / Under12 selectable (Default: Off) |
Configurable for each channel |
| Monitored signal |
Voltage / Current selectable |
Configurable for each channel |
| Digital output operation linked with events |
DO operation mode when an event occurs: Disable / Enable |
Configurable for each channel |
| Time resolution |
10 ms or 20 ms |
|
Event data
|
Duration time, Max/Min value |
Stored in non-volatile memory |
| Trend data measured over 1.5 s (a resolution of 10 or 20 ms) |
Stored in volatile memory |
| Digital Output(DO) |
| Terminal name |
DO, DOG |
| Connector type |
Screw-type terminal |
| Wire specification |
0.14 - 2.5 mm2 (26 - 14 AWG), copper |
| Output type |
Latch, Periodic Pulse, Uncountable Pulse, Countable Pulse13 |
| Min. pulse period |
0.2 s |
| Min. pulse on-time |
0.1 s |
| Isolation |
AC 2,500 V for 1 minute |
| Maximum rating |
DC 60 V 350 mA (max. 1 A) |
| General |
|
Weight
|
242 g |
Excluding the mounting wings L/S |
| 245 g |
Including the mounting wings L/S |
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 DC busbar voltage in case of a stand-alone operation.
3. The maximum number of DCM modules that can be connected to Accura 2300[S] is limited to 5.
4. Over/Under voltage/current events are detected by monitoring the voltage/current data aggregated over 10 ms or 20 ms.
5. In addition to the data aggregated over 0.5 s, the data aggregated over time intervals longer than 1 s are 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 rises above the threshold value during the set delay time.
12. An Under-voltage/current event occurs when the measured value rises above 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.
