Page 21 of 102
TVL 351
ISSUE 15
Service Activation
Service activation allows the lift installer/tester to place the lift on a choice of services replicating the physically
switching of that service. The service will be activate until the function is turned off and is logically in parallel with the
physical motherboard input.
Special Service
Special service takes the lift out of normal service and places control to a driver of the car. The driver places single
car calls to drive the lift to its required destination.
Inputs: "SSR ", "Special Service"
Remote Isolation
Remote Isolation takes the lift out of normal service, parking it at the next available floor. It is controlled by TVC’s
EMU system. EMU provides a method of remote monitoring any lift controller.
UPS Recall / UPS Shutdown
Depending on options selected the lift will stop at the next floor and shutdown or proceed to the fire floor at UPS
speed and shutdown.
Inputs: "UPS ", "UPS Evacuation Mode" + "ULB ", "UPS Low Battery"
Urine Detection
Urine detection is a feature that detects the presence of urine and brings the lift to a recall floor. Typically used on
railway station lifts.
Inputs: "UDI ", "Urine Detection Input"
Winter Auto Run
Winter auto run places a top floor call on to the lift every 30 minutes that the lift has been idle. The lift will then
dormant park to the bottom level. Used on Hydraulic drive lifts to ensure that the oil stays warm.
4.7. Checking Feature Descriptions
The Ethos Two has a multitude of monitoring methods built in. The feature list below gives a brief description of the
main checking features. Some of these features require additional external circuitry so need to be requested at
panel build time.
Access to the checking feature settings can be found behind the MMI “Settings” button.
Press: Settings → Search Settings → Checking Features
Final Limit Monitor
This activates an input that monitors the final limit, once tripped the lift will shut down and not move until the input is
restored and the event reset in the solutions menu. On hydraulic lifts the lift will park at the bottom floor and shut
down. (Required by EN81-20)
Inputs: "TFL ", "Top Final Limit"
Safety Gear Monitor
This activates an input that monitors the safety gear switch, once tripped the lift will shut down and not move until
the input is restored and the event reset in the solutions menu. (Required by EN81-20)
Inputs: "SGS ", "Safety Gear Switch"
Over-speed Governor Monitor
This activates an input that monitors the over–speed governor switch, once tripped the lift will shut down and not
move until the input is restored and the event reset in the solutions menu. (Required by EN81-20)
Inputs: "OS ", "Over Speed Input"
Lock Bypass
EN81-20 requires a Landing and Car Door Bypass device for maintenance on landing door, car door and door
locking contacts. During this operation the movement of the car shall only be possible in inspection operation or
emergency electrical operation. An audible signal on the car and a flashing light under the car are activated during
movement. When the lift is moving in inspection operation or emergency electrical operation the LBPI output will
strobe at 2 second intervals.
Inputs: "LBP ", "Lock Bypass Monitor" and Outputs: "LBPI ", "Lock Bypass Indicator"
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