Product Description
Description: Anti-Tiedown Monitors • Physical Dimensions: 120mm x 100mm x 50mm (4.7? x 3.7? x 2.0?) • Power Requirements: 115 VAC, 50/60 Hz @ .1A 230 VAC, 50/60 Hz @ .05A • Power Line Monitor: Resets if supply drops below 90V RMS (115V application), 180V RMS (230V application) for more than 15ms. • Output Load Rating: 8 Amps (Switching)6 Amps (Continuous) • Hand Switch Delay: .05 to .15 seconds (factory set at .075 seconds) • Switches must be activated within:: 0 to .7 seconds (factory set at .5 seconds) • Delay on Power-up: 5 seconds (approximate)
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Physical Dimensions | 120mm x 100mm x 50mm (4.7? x 3.7? x 2.0?) |
| Weight | 0.6 kg (1.25 lbs) |
| Power Requirements | 115 VAC, 50/60 Hz @ .1A 230 VAC, 50/60 Hz @ .05A |
| Power Line Monitor | Resets if supply drops below 90V RMS (115V application), 180V RMS (230V application) for more than 15ms. |
| Output Load Rating | 8 Amps (Switching)6 Amps (Continuous) |
| Output Life | 10 million mechanical operations (minimum) |
| Hand Switch Delay | .05 to .15 seconds (factory set at .075 seconds) |
| Switches must be activated within: | 0 to .7 seconds (factory set at .5 seconds) |
| Delay on Power-up | 5 seconds (approximate) |
| Temperature Range | Up to 60°C (140°F) |
| Origin | Made in U.S.A. |
| Series Features |
| Model 4485 Anti-Tiedown Switch Monitor with PLC Interface |
| Series Description: The 4485 Switch Monitor is designed to provide two-hand control for machines which are using a PLC to control its operation. Most PLCs should not be used for safety applications because they are not of control reliable contruction as defined by OSHA. Therefore, an anti-tiedown control, such as the 4485 control, is needed in order to meet OSHAs Control Reliability standards. [Sec. 1910.217(b)(13)]. |
| Series Operation: If both start switches are closed within a time of .5 seconds, the PLC port and the load output will be energized. The PLC port is wired to the input of the PLC, and signals the PLC to start the machine cycle. The load output can be wired to supply power to the outputs of the PLC, so that the PLC outputs will only be energized when both start switches are activated. The output contacts will remain closed until one or both start switches are released. Maintained Output An optional Hold switch can be wired into the 4485 to provide a maintained output. When the Hold switch is closed, the load will stay energized even after the start switches are released. The Hold switch must not close until the machine passes the pinch-point, and it should remain closed for the rest of the machine cycle. If the optional Reset switch is opened at any point during the machine cycle, the outputs will de-energize and the control will reset. Both start switches must be open and the Reset switch must be closed before another machine cycle can be started. Isolated output contacts of the PLC can be used to control the optional Hold and Reset features. This will allow the PLC to control timing and other operations that may determine when the machine cycle should end. |
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