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

PPM-3 offers multiple speed/voltage regulation output modes to accommodate actuators from different manufacturers.

7.1 Relay type speed regulation (standard)

Terminals 65~68 (Slot # 4): Upstream and downstream relay contacts (250V AC/8A).

The mechanical governor needs to be equipped with a droop characteristic of 4% ± 2% to achieve parallel equalization.

If using a DC driven motor, it is recommended to parallel freewheeling diodes (1N4007) at both ends of the motor coil to prevent arcing at the relay contacts.

7.2 Analog speed regulation (options E1/E2/EF2)

Terminals 66 and 70 can output ± 20mA or 0-20mA current signals, directly driving electronic speed controllers.

Current can be converted into voltage (± 5V or 0-10V) through parallel resistors (such as 250 Ω).

The output has an internal power supply, isolated from the system, and a maximum load of 500 Ω.

7.3 Combination Plan (Option EF4)

Provide an analog channel (terminals 65/66) and a pair of relay contacts (terminals 69~72).

Can be set in the menu: relay for speed regulation, analog for AVR; Or vice versa.

7.4 PWM output (option EF5)

Terminals 67/68 output PWM signals for the speed controller, while terminals 69~72 still retain relays for AVR voltage regulation.

Important notice: The common terminal connection and signal polarity of all speed/voltage regulation interfaces must strictly follow the actuator manufacturer's manual. The DEIF official website provides interface application notes for common speed regulators (GAC, Woodward, Barber Colman, etc.).

Key points of communication measurement wiring

Slot # 5 (terminals 73~89) is responsible for collecting three-phase voltage and current:

Current input: Terminals 73-78 are three-phase transformer inputs (s1/s2), suitable for 1A or 5A CT, with a power consumption of ≤ 0.3VA per phase. It can withstand 4 times the rated continuous current and 20 times the 1-second impulse.

Voltage input: Terminals 79-84 are for generator/shore voltage, and terminals 85-89 are for bus voltage. The voltage range is 100-690V AC (phase to phase), and there is no need to connect N wires (three-phase three wire system is also supported).

Wiring requirements: The CT secondary side grounding can be connected to either s1 or s2; The voltage circuit needs to be equipped with 2A slow melting fuse.

In BTB mode, terminals 79-84 measure the voltage of bus A, and terminals 85-89 measure the voltage of bus B, used for checking synchronous closing.

Engine control and shutdown circuit

Speed sensor (MPU): Terminal 100/101 receives 0.5-70V AC signals with a frequency range of 10-10000Hz, used for speed measurement and overspeed protection (response time<500ms).

Start/stop relay (terminals 119~124):

Terminal 119: Running coil (attracted during operation)

Terminal 120: Start preparation (preheating/pre lubrication)

Terminal 121/122: Start motor (Crack)

Terminal 123/124: Shutdown coil with wire breakage monitoring function (only 12/24V DC), continuously engaged during the "extended shutdown" period.

Emergency stop input (terminal 118): directly triggers shutdown, with the highest priority and response time<200ms.

Technical parameters and environmental requirements

Accuracy level: Measurement class 1.0 level, fast overcurrent 3% accuracy, analog output 1.0 level.

Working temperature: -25~70 ℃ (including option N, -25~60 ℃, UL certification limit of 55 ℃).

Altitude derating: From 2001 to 4000m, the upper limit of the measured voltage drops to 480V (three-phase four wire) or 690V (three-phase three wire).

Insulation withstand voltage: 3250V for 1 minute between AC voltage and other I/O; 2200V for 1 minute between the current and other I/O.

Vibration impact: meets IEC 60068-2-6 and IACS UR E10 standards, and can withstand a 50g impact.

Certification: UL/cUL Listed to UL508, meeting CE (EMC) and classification society requirements.

Common debugging and fault prevention suggestions

Power supply inspection: Confirm that the power supply voltage is stable (especially at the moment of startup), and the controller can withstand a drop from 24V to 0V for 10ms, but should avoid frequent and severe fluctuations.

Wiring verification: All digital inputs (with wire breakage monitoring) must be connected in parallel with a 270 Ω resistor, otherwise a "wire breakage" alarm will be triggered.

CAN bus networking: Ensure that the terminal resistance configuration of each node is correct (only the end node is enabled), the shielding layer is single ended grounded, and avoid ground loops.

Governor parameter matching: The droop setting value must be 4% ± 2%, otherwise the parallel active power distribution deviation will be significant.

Emergency stop circuit: The emergency stop input should use independent and reliable passive contacts, and shielded wires should be used to reduce interference.

Firmware and software configuration: All multifunctional inputs and configurable I/O require downloading the parameter list through PC software (DEIF Utility), saving and restarting it to take effect after modification.