Df - Down Fast Relay Output; Dfcf - Door Fully Closed (Front Doors) Input; Dfcr - Door Fully Closed (Rear Doors) Input - ECD 100-181 Manual

I N P U T S – O U T P U T S
Toggle switch also provided on board. When switch is on (down) DDO is activated.
Allows the lift to be sent to floors via car calls without the doors opening. Useful for testing/adjusting etc.
OS output shall be activated. Lift shall be taken out of the group.
DO button, Independent Service and Fire Service override DDO

DF - Down Fast relay output

DF RELAY OUTPUT Down Fast output
See Section 6: Motion, for more on the relay operation

DFCF - Door Fully Closed (Front doors) input

DFCF input must change state when the front doors reach the fully closed limit/position.
Single Front Door:
Input state can be inverted with DLI setting. See DLI in EEprom settings.
To close the lift front door, DCF relay shall pull up and stay up until the DFCF input is switched and the locks are
made. If DFCF input does NOT switch, DCPfail shall appear on the LCD after a period of 25 seconds and
drop DCF relay. After a further period of 15 seconds, the front door will re-open and display DCP (Door Close
Protection) on the LCD. This process is repeated until the fault has been cleared and the DFCF input switches.
While in DCPfail/DCP mode, the controller switches on the OS output. See Inputs - Outputs, OS.
Nb: When DLM = 02, DCPfail does not apply.
Alternatively, If DFCF input is switched and the door locks do not make, LCK-bad shall appear on the LCD.
DCF relay shall stay active for a period of 5 seconds to try to push the front door closed. If the door locks still fail
to make then the doors shall then re-open. This process will be repeated until the fault has been cleared and the
locks make.
Nb: When DLM = 02, LCK-bad does not apply, due to locks not making until a call is registered and cam lifting.
Dual Front Doors:
DLM EEprom setting must be set to 01 for dual doors.
DLI EEprom setting shall be ignored . See DLI in EEprom settings.
.
DFCF input is switched via the external front door close relay n/o contacts.
The door close relays drop out via the door fully closed limit switches.
When the external front door close relay is in DFCF LED will be on.
See the following DC-DCPfail flow chart for more detail.

DFCR - Door Fully Closed (Rear doors) input

DFCR input must change state when the rear doors reach the fully closed limit/position.
Single Rear Door:
Input state can be inverted with DLI setting. See DLI in EEprom settings.
To close the lift rear door, DCR relay shall pull up and stay up until the DFCR input is switched and the locks are
made. If DFCR input does NOT switch, DCPfail shall appear on the LCD after a period of 25 seconds and
drop DCR relay. After a further period of 15 seconds, the rear door will re-open and display DCP (Door Close
Protection) on the LCD. This process is repeated until the fault has been cleared and the DFCF input switches.
While in DCPfail/DCP mode, the controller switches on the OS output. See Inputs - Outputs, OS.
Nb: When DLM = 02, DCPfail does not apply.
Alternatively, If DFCR input is switched and the rear door locks do not make, LCK-bad shall appear on the
LCD. DCR relay shall stay active for a period of 5 seconds to try to push the rear door closed. If the door locks still
fail to make then the doors shall then re-open. This process will be repeated until the fault has been cleared and the
locks make.
Nb: When DLM = 02, LCK-bad does not apply, due to locks not making until a call is registered and cam lifting.
Dual Rear Doors:
DLM EEprom setting must be set to 01 for dual doors.