Page 14 of 102
TVL 351
ISSUE 15
4. Service and Feature Descriptions
4.1. Main Modes of Operation
Normal or Automatic
This is the default mode of operation signified by the LAR input to the controller (Lift Available Relay),
Whenever the LAR input is de-energised, for example, due to the stop switch being operated, or the lift being
switched to inspection control, all car and landing calls will be cancelled and the ‘LISI’ (Lift In Service) indicator will
be off. (This LISI indicator is only provided when requested).
Door Disable
When enabled through the MMI, Door Disable inhibits normal operation of the door operator.
Also in this mode the lift can be moved via the MMI buttons in the “Jog Up/Down” screen, when Jog Motor mode is
active.
Prepare to Test
When enabled through the MMI, Prepare to Test assists in the commissioning or maintenance by inhibiting landing
calls and responding only to car calls, Doors park closed in the absence of car calls.
Inspection Control and Pit Inspection Control
When in these modes the car top / pit test buttons enable lift movement. During this time no calls will be accepted
and all features such as Fire or Service control are disabled. The lift will only move if the car top inspection buttons
are pressed or the pit inspection buttons are pressed (if fitted).
Emergency Electrical Operation
When in this mode the panel test buttons enable lift movement. During this time no calls will be accepted and all
features such as Fire or Service control are disabled. The lift will only move if the panel test buttons are pressed.
This mode is overridden by Inspection Control.
Installation Hoist Mode
When the controller is in installation hoist mode, activated in the checklist menu, the motor can be run on inspection
or emergency electrical operation without the CAN2 car / expansion network plugged in. Turn off after installation.
4.2. Call Collective Modes
The Ethos Two has a selection of call collection options, see below. Some of these options require additional
external modules so need to be requested at panel build time.
Full Collective
Up / Down landing calls answered in sequence, in the current direction of travel.
Down Collective
Down landing calls answered in sequence in the down direction, starting from the highest call.
Non Selective
Single call at each landing is answered irrespective of direction.
Hall Call Destination
Destination calls entered via keypad or touch screen at each landing (see TVC Navigator).
APB Control
APB operation offers the simplest form of lift service whereby the car responds to a single call and inhibits insertion
of further calls whilst the lift is in use. This mode of operation is suitable only for simplex installations and is typically
limited to low-rise goods lifts particularly manual gates installations. A Lift In Use Indicator (LIUI) warns other users
of the temporary unavailability of the car.
APB Car Call Preference temporarily inhibits landing calls to allow car call entry by the lift occupant. The APB Car
Call Preference timer restarts on arrival at a landing or when the doors open or close. The timer period can be set in
the settings menu under “Calls”.
The APB Last Car Call feature allows the lift occupant to change the current car call destination by pressing an
alternative car push. With APB Last Car Call operation turned off the user is unable to change the car call
destination once a car call has been accepted i.e. the existing car call must be serviced before another car call can
be entered.
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