Installation and I/O configuration of DEIF PPM-3 power management module

Installation and I/O configuration of DEIF PPM-3 protection and power management module engineering

The reliable deployment of power management and protection controllers in ship power systems, offshore platforms, and emergency power stations is directly related to the stable operation of the entire power grid. DEIF PPM-3（Protection and Power Management） As a highly integrated multi unit parallel controller, it supports various power supply scenarios such as diesel generators (DG), emergency diesel generators (EDG), shaft generators (SG), shore power connections (SC), and busbar connections (BTB). This article is based on the detailed installation manual of PPM-3, extracting a complete practical guide from physical installation, terminal function definition to communication networking and speed controller interface, to help on-site engineers quickly complete equipment cabinet installation and debugging.

Product Overview and Applicable Scenarios

PPM-3 is a protection and power management unit designed specifically for ships and industrial power plants, with core functions including:

Multi unit parallel control: supports power management, synchronization, and disconnection of up to 32 generator units.

Fault protection: Provides multiple protections such as overcurrent, reverse power, over/under frequency, over/under voltage, voltage imbalance, negative sequence current, etc.

Rich interfaces: standard power board, I/O board, AC measurement board, and expandable communication board (Modbus, Profibus, CAN) and additional I/O.

High reliability: wide operating temperature range (-25~70 ℃), high anti vibration level, meeting the marine IACS UR E10 standard.

This article is aimed at electrical engineers responsible for system integration and on-site installation, covering hardware installation, definitions of various types of terminal blocks, typical wiring methods, and debugging points.

Physical installation and mechanical dimensions

2.1 Installation method

The PPM-3 body is fixed with backplate screw holes, and there are 6 M4 mounting holes provided on the back of the chassis. The recommended installation torque is 0.3 Nm (2.7 lb in). The equipment is designed for cabinet installation, while the display panel (AOP-1/AOP-2) can be independently installed on the cabinet door and connected to the host through an optional display cable (option J). The cable is up to 6 meters long and uses a 9-pin Sub-D male and female standard extension cable.

2.2 Panel openings and dimensions

Panel opening: Cut according to the opening diagram in the manual to ensure the sealing of the display module after embedding (optional IP54 sealing gasket).

Overall dimensions: width of approximately 250mm, height of approximately 180mm, depth of approximately 120mm (see manual dimension diagram for details).

Tightening torque:

Panel door locking screw: 0.7 Nm (6.2 lb in)

Terminal block: 0.5 Nm (4.4 lb in)

Sub-D interface screw: 0.2 Nm (1.8 lb in)

Attention: During installation, avoid using cutting oil, lubricating oil, and other chemical reagents that come into contact with the casing, as this may damage plastic parts and void the warranty.

Hardware board slot structure

PPM-3 adopts a modular slot design, with a total of 8 slots, each corresponding to a different functional board:

Type of slot number function description

#1. Power supply board+status relay+basic I/O standard configuration (all models)

#Optional external communication (Modbus RTU/Profibus/CAN H8.2)

#3 load distribution lines (active/reactive)+multifunctional input/output standard configuration

#4 speed regulator/AVR output (relay or analog) standard/optional combination

#5 AC voltage/current measurement (generator and busbar) standard configuration

#6 Analog Transmission Output or Additional I/O (F1/M13.6/M14.6/M15.6) Optional

#7 engine interface board (MPU speed, multi-purpose input, start/stop relay, CAN communication) standard configuration (DG/EDG/SG)

#8 additional I/O or CAN extensions (H8.8/M13.8/M14.8/M15.8) optional

Engineers should confirm the actual configuration of the equipment's optional boards before wiring, and refer to the corresponding chapters for terminal definitions.

Detailed explanation of terminal block functions (by application type)

4.1 Universal Power Supply and Status Relay (Slot # 1- All Models)

Terminals 1-28 are shared by all PPM-3 variants:

Power input: Terminal 1 (+12/24V DC), Terminal 2 (0V), operating voltage range 8-36V DC, requires external 2A slow melting fuse.

Status relay (terminals 3-4): a normally closed contact used to monitor the processor and power supply status, which will disconnect in case of power loss or CPU failure.

Alarm horn relay (terminals 5-7): It can be configured as NO or NC to engage when any alarm occurs.

Configurable relay (terminals 8-13): default programmable, used to drive external indications or interlocks.

Opening and closing control of generator/circuit breaker (terminals 14-19):

Terminals 14-16: "Disconnect" relays (such as GB OFF, SGB OFF, etc.), used for tripping after unloading.

Terminals 17-19: "Close" relay (such as GB ON), used for synchronous closing.