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UV Electrical Cabinet (Machines 16 and above). General. General (Cont.). General (Cont.). The power cabinet is responsible for the following functions: Supplying voltages & controlling the UV lamp system Supplying voltages & controlling the cooler unit
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General Confidential
General (Cont.) Confidential
General (Cont.) • The power cabinet is responsible for the following functions: • Supplying voltages & controlling the UV lamp system • Supplying voltages & controlling the cooler unit • Supplying voltages & controlling the extraction unit Confidential
General (Cont.) • Wiring Notes: • Blue wire: 24VDC • Red wire: 110VAC • Black wire 400VAC Confidential
Electro Magnetic Compatibility Filter A1.1 Q1.1 -Mains circuit breaker Earth Leakage Relay Q2 -Transformer breaker K2-UV Main Contactor Units Description Confidential
Units Description (cont.) • Safety Switch Relay K9: • Verify that the UV lamphead cover is closed and enables the UV main contactor K2. Confidential
Fuses • F1: 110 V out from the transformer, 2 Amps fuse • F2: 24VDC power supply output protection, 2 Amps fuse • F3: Shutter open signal to the shutter valve, 1.6 Amps fuse Fuses Confidential
Fusses E.M Contact 1&2 Shutter Close 1 ShutterClose2 Over Tem’ (Lamp) Lamp pressure Shutter Open Safety Relays Confidential
K3 K4 K5.1 K5.2 Units Description (cont.) • UV lamp High Voltage contactors: • Enable the high voltage to the lamp by levels (30%-100%). Confidential
Units Description (cont.) • Overload Relays: • Q6.11 - Cooler Pump • Q6.12 - Cooler Fan1 • Q6.22 - Cooler Fan2 • Q7 - Extract Fan Frequency Inverter A7 • Contactors: • K6.11-Cooler Pump Contactor • K6.12-Cooler Fan1 Contactor • K6.22-Cooler Fan2 Contactor Confidential
Extraction Fan Frequency Inverter A7 Units Description (cont.) • Extraction fan frequency inverter A7: • Controls the air extraction flow rate, depending on the UV lamp power. Confidential
Units Description (cont.) • PLC Panel Confidential
PLC Panel Inputs: • R1: Shutter ON, from the machine • R3, R4 and R5: UV power bits, from the machine • R6: Extraction fan operation indication, from A7 (Inverter) Confidential
PLC Panel (Cont.) • Inputs: • R7: Cooler pump or cooler fans trip indication • R8: Lamp head pressure switch, from the UV lamp head • R9: Lamp head cover status (closed/opened) indication • R10: Transformer Contactor Operation K2 • R12: Alarm reset button • V2: 24VDC • 0VD: 0VDC Confidential
PLC Panel (Cont.) • Inputs and outputs: • I1: Transformer breaker • I2: Shutter opened indication, from the UV lamphead • I3: Shutter closed indication, from the UV lamphead • I4: Lamp head over temperature indication Confidential
PLC Panel (Cont.) • Inputs and outputs (cont.): • I5: Emergency switch from the machine • I6: Cooler over temperature indication, from the thermal switch in the Cooler • I7: UV lamp power indication • I9: Cooler low level indication • I10: UV ON signal from the machine • 0VD: 0VDC • QA1: Output signal to the extraction fan frequency inverter A7 Confidential
PLC Panel (Cont.) • Outputs: • Q1: Extraction fan frequency inverter A7 • Q2: Operating power to the UV main contactor K2 • Q3, Q4 and Q5: Output power for enabling the high voltage contactors • Q6: Enabling cooler pump and fans Confidential
PLC Panel (Cont.) • Outputs Signals: • S1: UV ready signal to the machine • S2: Shutter open signal to the shutter valve • S3, S4 and S5: UV fault signal to the machine Confidential
Transformer • Receives an input of 380-480VAC. • Converts the voltage to 110VAC. Confidential
24VDC Power Supply • Receives an input voltage of 110VAC. • Converts the voltage to 24VDC for the PLC. Confidential
High Voltage Transformer • Receives an input voltage of 230VAC. • Converts the voltage to 2000VAC for the UV lamp. Confidential
Capacitors • Supply the high voltage to the UV lamp Confidential
Electrical Connections • XPC1: Connected to the cooler. • XPC2: Connected to the cooler. • XPPT: Connected to the UV lamp head. • XPF7: Connected to the extraction fan. Confidential