GP44 Semi-Automatic Strapping Machine
OPERATION -30-
Electrical
NOTE: The machine has a safety interlock system to prevent operation of the machine without all
components of the machine in proper position. These interlocks include the emergency stop button(s), the
door interlocks, and the tabletop interlocks. The “Trouble Check” output on the PLC will be illuminated if all
safety interlocks are closed. If any of the interlocks are open, the machine will not power up.
220 and 440 volt machines have three distinct circuits that control the machine.
• A 220 Volt circuit that controls the major motors.
• The 100 Volt circuit that controls the heater blade, the PLC, the 24 VDC power supply (if equipped)
and some motors.
• The 24 VDC circuit that controls the PLC inputs and outputs.
Each of these circuits is individually fused to protect the components in the circuit. In addition to the fuses,
each component typically is protected by a motor starter or circuit breaker.
110 volt machines have two distinct circuits that control the machine.
• The 100 Volt circuit that controls the heater blade, the PLC, the 24 VDC power supply (if equipped)
and some motors.
• The 24 VDC circuit that controls the PLC inputs and outputs.
Each of these circuits is individually fused to protect the components in the circuit. In addition to the fuses,
each component typically is protected by a motor starter or circuit breaker.
Most electrical problems involve power disruptions due to one of the reasons above, interlocks, fuses, motor
starters and relays.
To Next Page
Loading...