Python Line Series - Conveyor Belt Alignment Switches
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SECTION 22 CONVEYOR BELT ALIGNMENT SWITCHES Python Line Series - Conveyor Belt Alignment Switches Housings: Die-cast painted yellow, or Stainless Steel 316. Roller Options: 35 x 120mm Short Roller 35 x 230mm Long Roller 50 x 170mm Medium Roller MINIATURE BELT ALIGNMENT SWITCHES Please see P214-215 HLM-CBA Types. Housings: Die-cast painted red or S/Steel 316. APPLICATION: Conveyor Belt Alignment switches are mounted on sections of plant conveyors to protect against excessive belt drift due to an unintentional movement. They can be fitted at appropriate points along the conveyor length to ensure that should the belt position drift, the roller arm of the switch will move to a pre-determined position and cause activation of a control circuit. All switches conform to European Standard IEC 60947-5-1 and provide positively operated contacts at the point of tripping. They can be used to satisfy the requirements of EN 620 with regard to conveyor control hazards caused by shifting of the belt position during running. They are available in different roller diameters to provide heavy duty performance and long life. OPERATION: The steel roller of the switch is placed near to the running edge of the conveyor belt such that deflection of the roller and arm will cause activation “tripping” of the internal contacts of the switch. Adjustment of the tripping angles and necessary activation torque is provided by the switch. INSTALLATION GUIDE: 1. Installation of all switch systems must be in accordance with a risk assessment for the individual application. Installation must only be carried out by competent personnel and in accordance with these instructions. 2. M5 mounting bolts must be used to fix the switches. Tightening torque for mounting bolts to ensure reliable fixing is 4 Nm. Tightening torque for the lid screws, conduit entry plugs and cable glands must be 1.5 Nm to ensure IP seal. Only use the correct size gland for the conduit entry and cable outside diameter. 3. The position of the roller must be chosen to ensure that in normal use the belt does not touch the roller, but that should the belt move beyond its normal guides it will make contact with the roller. After selecting the correct mounting position, the switching points of the internal contact blocks can be finely adjusted via internal cams. There are 2 internal contact blocks one to provide a “STOP” signal the other to provide a “WARNING” signal. The blocks offer NC and NO circuits. Final Adjustment of contact block action: STOP SIGNAL Contact block 2 Adjustment cam. Allen screw (2.5mm) Tightening Torque 2Nm Factory setting 25 degrees. (Adjustable 15 to 35 degrees) WARNING SIGNAL Contact block 1 Adjustment cam. Allen screw (2.5mm) Tightening Torque 2Nm Factory setting 14 degrees (Adjustable 10 to 18 degrees) 4. The operational torque can be adjusted to cope with belt sensitivity or mounting angle. Factory setting is low setting BLOCK 2 Operational torque can be increased or decreased by turning the adjustme

MAINTENANCE: Every month: Check correct operation at all switch locations along all coverage length. Check for nominal warning and trip angle, re-set if necessary. Every 6 months: Isolate power and remove cover. Check screw terminal tightness and check for signs of moisture ingress. Never attempt to repair any switch. CONTACT OPERATION/DEFLECTION OF ROLLER: 0 Degrees 14 Degrees 25 Degrees 65 Degrees WARNING STOP CONTACTS OPEN CONTACTS CLOSED WIRING EXAMPLES (Standard Versions): LED Steady Green or Flashing Red (Bi-colour) When power is applied to the Red wire, the lamp will illuminate...

Python Line Series - Conveyor Belt Alignment SwitchesMEDIUM DUTY - DIE-CAST BELT SWITCH 35mm x 120mm ROLLER ORDERING: O LU C/> SALES DESCRIPTION NUMBER HEAVY DUTY - DIE-CAST BELT SWITCH 35mm x 230mm ROLLER ORDERING: LU CQ cc 2 LU > Z o u SALES iLiiiMDm DESCRIPTION HEAVY DUTY - DIE-CAST BELT SWITCH 50mm x 170mm ROLLER ORDERING: SALES DESCRIPTION NUMBER For all IDEM switches the normally closed (NC) circuits are closed when the system is tensioned correctly and the switch has been reset.

HEAVY DUTY - DIE-CAST BELT SWITCH 35mm x 230mm DIMENSIONS (mm): MEDIUM DUTY - DIE-CAST BELT SWITCH 35mm x 120mm DIMENSIONS (mm): CONVEYOR BELT ALIGNMENT SWITCHES Python Line Series - Conveyor Belt Alignment Switches HEAVY DUTY - DIE-CAST BELT SWITCH 50mm x 170mm DIMENSIONS (mm): For all IDEM switches the normally closed (NC) circuits are closed when the system is tensioned correctly and the switch has been reset.

Python Line Series - Conveyor Belt Alignment SwitchesMEDIUM DUTY - STAINLESS STEEL BELT SWITCH 35mm x 120mm ROLLER ORDERING: 1/5 LU U £ 1/5 SALES DESCRIPTION NUMBER HEAVY DUTY - STAINLESS STEEL BELT SWITCH 35mm x 230mm ROLLER ORDERING: LU CQ cc 2 LU > Z o u SALES iLiiiMDm DESCRIPTION HEAVY DUTY - STAINLESS STEEL BELT SWITCH 50mm x 170mm ROLLER ORDERING: SALES DESCRIPTION NUMBER For all IDEM switches the normally closed (NC) circuits are closed when the system is tensioned correctly and the switch has been reset.

HEAVY DUTY - STAINLESS STEEL BELT SWITCH 35mm x 230mm DIMENSIONS (mm): MEDIUM DUTY - STAINLESS STEEL BELT SWITCH 35mm x 120mm DIMENSIONS (mm): CONVEYOR BELT ALIGNMENT SWITCHES Python Line Series - Conveyor Belt Alignment Switches HEAVY DUTY - STAINLESS STEEL BELT SWITCH 50mm x 170mm DIMENSIONS (mm): For all IDEM switches the normally closed (NC) circuits are closed when the system is tensioned correctly and the switch has been reset.