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Details the necessary checks for nominal, alarm, function control, speed, and voltage controller settings.
Covers points to consider for checking protections: setpoint, delay, relay output, activation, fail class, and inhibits.
Details the step-by-step process for tuning PID controller parameters: KP, Ti, and Td.
Provides a table of common problems, their causes, and remedies for Multi-line 2 and Uni-line products.
Details the necessary checks for nominal, alarm, function control, speed, and voltage controller settings.
Covers points to consider for checking protections: setpoint, delay, relay output, activation, fail class, and inhibits.
Details the step-by-step process for tuning PID controller parameters: KP, Ti, and Td.
Provides a table of common problems, their causes, and remedies for Multi-line 2 and Uni-line products.
The DEIF Multi-line 2 series is a range of control units designed for generator set applications, offering comprehensive functionality for settings, governor, AVR, and protection checks, as well as overall unit adjustment. These guidelines are primarily intended for commissioning engineers responsible for setting up and verifying the unit's operation.
The Multi-line 2 unit serves as a central controller for engine/generator sets, managing various aspects of their operation. Its core function revolves around a PID (Proportional-Integral-Derivative) controller, which is crucial for maintaining stable and efficient performance. The unit incorporates several specialized controllers:
The unit also includes robust protection features to safeguard the generator set from various operational anomalies. These protections are configurable and cover aspects like alarm setpoints, delays, relay outputs, activation conditions, fail classes, and inhibits.
Commissioning the Multi-line 2 involves a systematic, step-by-step process to ensure proper integration and operation with the engine/generator set.
Settings Check: This initial phase involves verifying and adjusting all nominal, alarm, function control, speed controller, and voltage controller settings. These adjustments can be made either through the unit's display or via the PC utility software. Nominal values, such as frequency, power, current, voltage, and RPM, are set according to the generator's specifications. Alarm settings, including reverse power and overcurrent thresholds, are configured based on customer and application requirements. Function control settings, which encompass the entire functionality of the Multi-line 2, are carefully reviewed and adjusted for desired unit control. Speed and voltage controller settings are initially set to provide a slow regulation, with low Kp and Td values and high Ti values, to ensure stability before fine-tuning.
Governor Check: This step ensures the Multi-line 2 can successfully operate with the engine's speed governor. The governor itself should be tuned according to the engine manufacturer's instructions to ensure smooth operation without hunting before the Multi-line 2's control function is activated.
AVR Check: Similar to the governor check, this ensures the Multi-line 2 can operate effectively with the Automatic Voltage Regulator (AVR). The AVR should be tuned according to the manufacturer's instructions to ensure smooth generator operation before the Multi-line 2's control function is activated.
Protections Check: This involves verifying the configuration of all alarms, including their setpoints, delays, relay outputs, activation conditions, fail classes, and inhibits. These settings are critical and must align with national rules, additional protection equipment, and the required use of protections (e.g., tripping non-essential loads, breaker tripping, engine stopping).
Adjustment: This final phase involves fine-tuning the PID controllers.
The Multi-line 2 unit is designed for reliable operation, but proper installation and initial setup are key to its longevity and performance. The document emphasizes that the unit should not be opened by unauthorized personnel, as this will void the warranty. Regular checks of settings and protections during commissioning contribute to preventative maintenance, ensuring the unit operates within safe and optimal parameters. The troubleshooting guide provides a structured approach to identifying and resolving common issues, such as unstable load sharing, inability to take full load, or incorrect speed/voltage responses, by suggesting remedies like adjusting speed/voltage droop, checking initial settings, or swapping connections. This proactive approach to problem-solving helps maintain the system's integrity and reduces downtime.
General| Protection | IP20 |
|---|---|
| Storage Temperature | -40°C to +85°C |
| Weight | 0.3 kg |
| Power Consumption | 5 W |
| Relative Humidity | 0-95% non-condensing |
| Dimensions | 96 x 96 x mm |
| Communication | RS-485 |
