N. Fault Type Description Remedy
18
Safety 6 open
during travel
Safety chain open before Input
SE6 while car travelling.
landing calls and the car
movements are cancelled
On the PlayPad Led SE6 is off.
Cod 5: floor locks
Cod 6: car door
Check all contacts between the terminals
SD2 and SD3 (floor locks).
Check all contacts between the terminals
SC4 and SC5 (car door).
Check all contacts between the terminals
SC5 and SE6 (Protection device 81-21).
19
Low tension during
movement
Motherboard power below 17V
(this fault disappears when the
24V is restored)
Cod 0: Main power Input
Cod 1: Overcurrent on VCAB
Cod 2: Overcurrent on VMR
Cod 3: Short Circuit on VCAB
Cod 4: Short Circuit on VMR
Check the network, the supply voltage to
the transformer primary, the presence of
24V and the consumption of the circuit.
20 Travel interrupted
During upward (or downward)
movements contactors open while
RMO (or RDE) commands are
active. Possible short interruption
of the safety circuit while moving.
Cod 100: CCO signal falling during
travel
Cod 200: CCOB signal falling
during tavel
Check:
1- Preliminary contacts and door lockers
at the indicated floor
2- car door contacts
3- the supply voltage of the safety circuit
This symbol means a blocking fault: switch off main power and then switch it on again to put the lift back in service.
N. Fault Type Description Remedy
21 CCO input blocked
The contactors control circuit (Input
CCO) remains closed after travel
command is given
Cod. 100 CCO
Cod. 200 CCOB
Cod. 250 CTB not activated
check:
1- wiring and state of the auxiliary
contacts (NC) of the power
contactors and other NC contacts
wired in series on the CCO /
CCOB circuit
2- CCO / CCOB Motherboard
input
22 Low tension at stop Same as Fault N.19
Check the network, the supply
voltage to the transformer
primary, the presence of 24V and
the consumption of the circuit.
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