Maximum Power Demand Controller
MSDM-900
MSDM-900 is a whole new design of full function power demand controller suitable for power system with single or dual circuits.
With maximum 12 sets of relay output for load control, MSDM-900 also equips with unique functions such as serial communication, printer interface and analog signal output.
| Item | Specifications |
| Function Display | Present demand, Estimated demand, Usable demand, Target demand, power, 2 groups of maximum demand record, remain time, TOU mode, control mode, current time, previous demand and load status |
| Watt-hour Input terminals | Two groups of Watt-hour pulse input (additive) and pulse rate is settable (range 1~1000K Pulse/KWH) |
| Analog output terminals | DC 4~20mA output for power and maximum Span addition is settable |
| Communication output terminals | RS-485/Modbus protocol for present demand, power and loading status data transmission |
| Printer interface | Data of time, demand and loading status are printed out after ending of each demand period |
| Control Mode | Serial mode (priority mode) or cycle mode (average usage rate) is selectable and delay time is settable to adjust the degree of control frequency |
| Peak/Off-peak setting | Target demand is settable for each TOU and the rest days setting is up to 20 groups, peak/semi-peak/off-peak timing can also be set |
| Synchronous Method | by setting the system time synchronic with KWH mete of power company |
| Relay connection capacity | 5A / 250 VAC |
| Power Supply | 90V~260VAC (frequency range 45~65Hz) |
| Power Consumption | 17VA |
| Operating | Temp range 0~50℃, humidity range 0~90% |
| Power failure Memory | two months |
| Dimension | 278 (W) x 180 (H) x 104 (D) mm |
| Panel opening | 272 x 175 mm |
MSDP-800 Multi-functional Digital Power Meter