Page 228 - Gas Detection Systems Training Manual
P. 228

The “On” and “Off” states are determined by the state of the polarity, shown by the relationship dotted lines between the On/Off button to the Polarity Button:
Hence when the relay polarity is set to Normally De-energized, “On” then energizes the coil, otherwise it would de-energize the coil (as shown above) in the “On” state. The “Off” state in the Normally De-energized polarity then de-energizes the coil, whereas it energizes the coil in Normally Energized polarity (as shown above) when in the “Off” state.
When forcing a coil that has not been assigned, it works exactly the same except the Device Summary screen will not show a green box around the coil you select:
Pictured above is coil #5 assigned, shown with a green box surrounding its current state. Below is depicted coil #5 un-assigned, and therefore not having the green box surrounding the current coil state:
Pressing coil #5 when it is not assigned will result in the following Coil Assignment screen as depicted on the following page:
Sensor Electronics Corporation 5500 Lincoln Drive Minneapolis, Minnesota 55436 September 29th, 2006
Page 44 of 66
952-938-9486
SEC 3500 OI Supervisor Operator’s Manual V ersion 2.1.0095


































































































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