What causes 'Voltage less than set limit + Current less than set limit' on frako Controller?
This problem is caused by multiple zero-voltage crossings in measured voltage. To solve it, change the setting for the Network nominal parameters from Auto to the appropriate network frequency (50 Hz or 60 Hz) on your frako Controller.
Why doesn't my frako Controller switch out all stages under low load?
This issue may arise if the c/k is set too high; adjust the c/k according to the table. The frako Controller might be in manual mode, so deactivate manual control. It's also possible that the wrong control profile is selected; adjust the control profile to suit system requirements.
What to do if frako PQC shows 'Current less than set limit'?
This can happen due to a break or short-circuit in the current transformer cable. Use an ammeter to check the current in the current path (I * 0.015 A). It can also be caused by too low current in the current path, in this case, install a smaller current transformer. A defective current transformer can also be the reason, so check the current transformer.
How to troubleshoot a frako Controller PQC with no display?
The issue could be due to a power problem. Check that the correct instrument power supply is connected to the frako Controller and that the fuse in the circuit has not blown.
Purpose of the manual and instructions for its storage.
Explanation of symbols and warning sign conventions used throughout the manual.
Lists related documentation for further information on the PQC.
Defines the proper application of the PQC and lists instrument-specific hazards.
Outlines personnel qualifications, user responsibilities, and liability limitations.
Lists applicable standards for installation and procedures for obtaining repair services.
Explains the PQC's function, power factor correction, and regeneration modes.
Details PQC models and describes the device's operating keys and their functions.
Explains the system for securing sensitive menu items from unauthorized access.
Covers preparation, suitable location selection, and physical mounting of the PQC.
Details electrical wiring, specifications, diagrams, and connection steps for the PQC.
Covers start-up preparations, initial setup dialogue, and connection/stage identification.
Introduces the main menu structure and primary groups: Display, Configuration, About PQC.
Details available displays for PFC overview, System & PQ, Service, and Alarms.
Explains parameter settings for system, PFC equipment, control, alarms, and communication.
Covers temperature I/O, communication, service interface, and 'About PQC' information.
Provides safety warnings, cleaning methods, and maintenance information for the PQC.
A guide for identifying and resolving common PQC alarms and faults.
Details procedures for safely decommissioning and removing the PQC from installation.
Provides instructions for storing the PQC and guidelines for environmentally sound disposal.
General| Brand | frako |
|---|---|
| Model | PQC |
| Category | Controller |
| Language | English |
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