PLC Panel Check List Over all system cofiguration checks
Pass
Fail
Comments
System Name:
Check Model, Quanity of the system modules against the record in BOM :
Visual Inspection Checks
Check the suitability of the testing area (staging area)
Degree of Mechanical Protection
Cabinet type
Check terminal strips functional separation
check fusing and fuse rating
check check of the wiring separation of various voltages
check the filling ducts
check of the space of future expansion
Verify the control and signal cables
Paintwork free from scratches, blemishes, deformities
Eye bolts fitted
All mechanical connections are secure and fit properly
Doors and Lock/Keys are fitted securely
Nuts / bolts / screws / fasteners are tight
All hazardous labels are fitted (voltage > 50 V)
All device labels are fitted
The type test Certificate (as per IDS) including the electromagnetic Compatibility, tropicalisation etc. Check of instrument calibration ( certificate for the instruments that will be used for the test)
safety grounding circuit check as per EN 61010‐1 check of the safety ground insulation test
All Exterior cabinet namepltes are correctly located and squared to front and rear of cabinet for easy viewing
PLC Panel Check List All MCB labels are fitted
All terminal block lables are fitted
All earth bar labels are fitted
All rack interconnect I/O bus cables are labled
Randomly check crimped ends and screw connections
All IO modules are in correct Rack / Slot
Check Location of each component against General Arrangement drawing
Electrical Checks
All cabinet wiring shall be inspected prior to power‐up
Control Cabinets:
Random Cabinet power wiring visual or continuity checked against drawing
Random ferrule tagging visual check, should be clear and readable
Random Point to Point (resistance test)
Random Point to Ground (resistance test)
Earth bonding test shall not exceed 0.1 ohms between bonded item and appropriate eath bus bar, use megger to check earthing Power Connection Checks The following test is to ensure proper power feed is connected to the system prior to power on. Note that main processor batteries should be removed prior to powering up. This means the system has power but it has no appication code. Verify the correctness of the connection with the supply system, correct power connection to terminal strip, neutral and phase Check cabinets are connected to a suitable earthing point in the FAT premise Check a 230V AC (+ 5%), 50 Hz (+ 1%) supply to incoming UPS AC supply terminals Check a 230V AC (+ 5%), 50 Hz (+ 1%) supply to incoming Utility AC supply terminals
PLC Panel Check List Check all MCB's for the correct rating protection (refer to Electrical Power
System Power (230 V AC) Up
Check 230 V AC available at terminal 1&2
Switch 'ON' Circuit breaker 'MCB', check voltage on its output terminals.
Field Output Power (24V DC) Up
Check the 230 V AC power on the input terminals of 24V DC power supply unit.
Ensure System Healthiness as below:
Ensure the main rack power supply does not show any alarm
230 V AC Input feed Voltage: Current:
24V DC Power supply Voltage: Current:
Signal Wiring Checks
Distribution & Grounding Drawing)
Check Voltage on its output terminals; ensure the respective output devices are 'ON' such as Fan unit, Panel Lamp and Field PS units. Ensure all control system modules are in 'ACTIVE'.
Switch 'ON' power supply and check voltage on their output terminals respectively. Also check voltage on the input side of the power distribution terminals (keeping the fused terminals 'OPEN'). Note: Using a test meter measure the power supply module (off load) and ensure that the measured output voltage is 24V DC + 5%. If the DC voltage is outside of the specified limit, adjust power supply output in accordance with the manufacturer's guide.
Ensure no alarm on the IO modules after power up of the 24V DC field power supply. Power Consumption For each type of power feeds, measure voltage and total system current with with system "No‐Load" condition and record the results
Randomly the signal wiring shall be inspected prior to loop checks and application program (Logic Simulation)
PLC Panel Check List Cabinet wiring visual or continuity checked against drawing
Ferrule tagging visual check, should be clear and readable
Point to Point (resistance test)
Point to Ground (resistance test)
Randomly check the wiring for proper crimping and termination (Tug Test)
System Configuration Checks
Verify existence of control program
Check the module configuration as per 'Rack Assignment & I/O Details'
Check the I/O addressing for the hardware points 100%
Check the I/O addressing for the software points 100%
Loop Checks
This check will be done as per pre‐test before checking the application logic.
Analog Inputs
Check configured analog scaling and analog alarm/trip levels are correct
Check configured Alarms for HMI
Record results
Digital Inputs
Note: Earth bonding test shall not exceed 0.1 ohms between bonded item and appropriate earth bus bar
Activate each of the analog inputs by varying the potentiometer on the simulation panel. Check the current at the field terminals using a multimeter. Check the correct system reference address is activated and the value in the register varies correctly.
Activate each of the digital inputs by toggling the switches on the simulation panel Check the current Rack/Slot/Channel LED illuminates on input module and corresponding HMI display is changing the respective device color as specified
PLC Panel Check List in the FDS Check configured HMI alarm is correct
Record results
Digital Outputs
Using Engineering station force ON (energize) each output
Confirm that correct Rack/Slot/Channel LED illuminates on output module
Confirm that correct lamp on the simulation panel turns ON.
record results
All the changes in the logic shall be visualized by simulator panel
Field I/O Normal
Note: Any discrepancy will be in the punch List and will be cleared before starting the Application Logic Test Application Program Checks The purpose of this test is to verify the LCP Application Codes against the sequence of operation as specified in the Control Logic diagram/FDS. The simulation cabinets have been wired to allow all I/O groups to be operated without delay.
All the digital inputs into its normal position 'Open' or 'Close' as per normal process operating conditions All analog inputs into its normal position 'less than High set point' or 'more than Low set point' as per normal process operating conditions Logic Test The logic sequence will be tested exactly as per the control logic diagram and normal plant operating conditions, with each steps performed in sequence. Any corrections required will be done then or at the end of the test based on the correction required. Redundancy Checks
PLC Panel Check List CPU Redundancy Check
Check changeover between CPU A & CPU B and vice versa
Power supply Redundancy Check
Check changeover between PS A & PS B and vice versa
Ethernet Switch Redundancy Check
RIO Bus Redundancy Check
Spare Capacity Checks
Check digital input square quantity in %
Check digital output square quantity in %
Check analog input square quantity in %
Check analog output square quantity in %
System Shutdown/Reboot Functionality Checks
End the runtime program, Turn off power, for all enclosures‐ Observe Status
Switch on power, for all enclosures‐ Observe Status
Check Test Certificates
Check the test certificate as per document
Calibration Test Certificates Internal test report if any Material Test Certificate Conformity Certificate
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