As the central control unit, MCU is a key component of modular power management family. MCU offers a variety of functions such as priority load management based on user-adjustable voltage thresholds as well as control or alarm functions through an integrated relay control output. This intelligent control unit allows for the synchronization of up to sixteen power modules (MPPT/MPS) while providing complete system monitoring with integrated datalogging memory.
MCU‘s features open an endless spectrum of system design possibilities and combinations. Customizing your system electronics is as simple as choosing the appropriate Modular Power Management components for the application and assigning their responsibilities. This flexibility eliminates production lead times for customized electronics for standalone power supplies.
Part 2. Product feature
| Model | MCU |
| System voltage | 12/24/48 V adjustable |
| Own consumption | < 20 mA |
| Ambient temperature | –25 to +50 °C |
| Dimensions (W x H x D) | 90 x 150 x 112 mm |
| Weight | 380 g |
| Type of protection | IP22 |
Part 4. Product Applying drawing:
Part 5. Product Size drawing:
Part 6. Function description
1. Display function and Interface Description:
2.Modular Central Unit (MCU) is a component of Module Power Management. MCU can be used to control all modular power units includes MPS and MPPT. MCU controls and synchronizes all components of your PV system, collects and stores system performance data and enable external communication via remote display, modem or PC.
3.MCU can be used in 12V, 24V or 48V systems configured by DIP switch settings. Customized voltage set points are possible via PC software interface settings.
4.All connected RS interfaces will be supplied centrally (not more than 150mA)
5.MCU is the master controller of the Modular Power Management RS bus structure. It also provides communication ability via RS232 interface allows MCU to be connected to remote displays, modems or PCs.
6.MCU also provides a battery-supported, real-time clock.
7.MCU includes a bootloader function so that firmware can be easily updated in the field.
8.Wide ranges of individual basic setting for voltage set-points such as low-voltage disconnect (LVD), low-voltage reconnect (LVR), high-voltage disconnected (HVD) and high-voltage reconnect (HVR) for each installed power module.
9.Adjustable set-points for the charge cycles, target voltage and length of cycles.
10.Choice of PWM or two-point series (bank switching) regulation.
11.Monitoring of each system device and generation of alarms signals in case of system operation problem.
12.Sensibility checks when configuring the system. If system settings are not sensible for your system as designed, a warning occurs and the setting won’t be stored and accepted into the MCU memory.
13.Load switches (MPS) can drive a single load in parallel up to 200A. Load-discount prioritization by assigning voltage thresholds for disconnecting individual loads.
14.Prepared for use in hybrid systems (wind generator, hydro-turbines, diesel generators, fuel cell generators).
Part 7. Remark
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