SECOP 101N3110 SDD Power Management Module Instructions
- September 11, 2024
- SECOP
Table of Contents
SECOP 101N3110 SDD Power Management Module
Specifications
- Input Voltage: 30-55V DC for Electronic Unit 101N2742
- AC Input Voltage Range: 85-264V AC
- Output: AUX Output – Stabilized 24V, up to 30W continuous
- Input Protection: PV input is protected against reverse polarity and requires a 15A automotive fuse
- Mounting: Can be mounted using 4 screws
Product Usage Instructions
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Installation
The SDD PMM can be mounted using 4 screws. The interconnection between the compressor’s electronic unit and SDD PMM shall be executed as stated in the manual. -
AC Power Input
The AC input can supply the compressor and aux. output unit from 85V to 264V AC input between 40Hz and 65Hz. It is enclosed in plastic, withstands voltages up to 510V AC, and should be fused with a standard 10A household circuit breaker. -
PV Input
The PV input is optimized for an input voltage of 34V, with configurable cut-in at 25V and cut-out at 57V. It can withstand voltages up to 58V, is protected against reverse polarity, and requires a 15A automotive fuse. -
AUX Output
The AUX Output delivers stabilized 24V and up to 30W continuously on either PV or AC supply voltage. It is disabled on power loss or insufficient power supply.
FAQ
Q: Can I use the AUX output for a heater?
A: Yes, the AUX output can be used for a heater to control the cooling loop
as it remains enabled even when the compressor output is active.
Q: What happens if there is not enough power supplied to operate the AUX
output?
A: The AUX output will be disabled in scenarios such as bad sun conditions
or when there is no available AC power.
Instructions
The SDD Power Management Module (SDDPMM) is a specialized add-on power supply for off- and weak-grid appliances using the BD Nano compressor. The SDD PMM offers a wide range Input, a DC Input for direct PV panel connection with MPPT algorithm, a control and power output for a BD Nano compressor, as well as a DC Output (24V, 30W max.), and an AUX I/O. The AUX I/O is LIN compliant and offers a modbus interface that is compatible with the Secop Gateway (109N9518) and is configurable via the free TOOL4COOL® software. The SDD PMM can be controlled by a master controller, attached to the AUX I/O port to allow customers to develop algorithms for MPPT, speed, and temperature control.
Installation
The SDD PMM can be mounted using 4 screws. The interconnection between the compressor’s electronic unit and SDD PMM shall be executed as stated in this document.
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AC power input
The AC input is capable of supplying the compressor and aux. output unit from 85V to 264V AC input between 40Hz and 65Hz. The unit itself is enclosed in plastic and has no protective earth. It can withstand voltages up to 510V AC without damaging the power supply. The AC supply has no internal fuse and shall be fused with a standard 10A household circuit breaker. -
PV input The PV Input is designed to be used with up to 72 cell panels, combinations of different panels are possible. The input is optimized for an input voltage of 34V, the lowest (configurable) cut-in is 25V, and the highest (configurable) cut-out is 57V. The unit can withstand voltages up to 58V without getting damaged and is protected against reverse polarity. The PV input has no input protection and requires a 15A automotive fuse
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MPPT
The SDD PMM is equipped with a tailor-made maximum power point tracking algorithm to control the compressor’s rpm based on the available power of the PV panels. The MPPT algorithm is fully configurable to fit the SDD PMM to the needs of the region and product. The SDD PMM is supplied with a configuration preset for universal market needs, editable via TOOL4COOL®. -
Compressor output
The compressor output is designed to be used with the BD Nano-Series controller 101N2742. Its voltage and power output are tailored to be used with the BD Nano and are not approved for use with different compressors. The compressor LIN I/O is a standard LIN interface to connect to the communication interface of the BD Nano. The SDD PMM acts as a master controller to the 101N2742, and relais all configurable thermostat registers to its communication interface. Any configurations directly to the Motor controller be overwritten on the boot of the SDD PMM. The SDD PMM influences the compressor motor controller rpm depending on the available solar energy (MPPT). -
AUX output
The AUX Output is capable of delivering stabilized 24V and up to 30W continous, on either PV or AC supply voltage. The AUX Connector is never disabled while the compressor output is enabled, therefore it can be used for a heater t control the cooling loop. The AUX output is disabled on power loss or if not enough power can be supplied to operate the output (i.e. on bad sun conditions or no available AC). -
AUX LIN
The AUX LIN communication interface can be used to connect a master controller, the Secop Gateway, or a datalogger. It is possible to configure the SDD control operation using the free TOOL4COOL® Software and the Secop Gateway. For more details on Modbus coils accessible via the LIN interface refer to the Operating Instructions. -
Error handling
If the SDD PMM or the compressor controller (electronic unit) detects an operational error, report the error to the LIN interface via a Modbus register. This register can be accessed using either the Secop Gateway and TOOL4COOL® or a master controller. All detected and reported errors are available in the SDD’s error log and actual error register. The SDD PMM contains an internal LED that will blink the error code.
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