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INSTALLATION MANUAL
CAA480A
Elevator Controller
FAIL-SAFE
When connecting to the elevator, we recommend that you use the Fail-Safe method.
This ensures elevator operation regardless of the situation and gives the ability
to manually bypass all floor security in the event of an emergency or system trouble.
Refer to Figure 5 for more details. To connect the CAA480A in Fail-Safe:
1. Connect the "COM" terminal of the desired floor control relay from the CAA480A
to the desired elevator control system floor button input terminal.
2. Remove the connection between the elevator car floor button and its corresponding
elevator control system floor button input.
3. Using a loop terminal added by the installer, connect the "NC" terminal
of the desired floor control relay from the CAA480A to the added loop terminal.
Then connect the elevator car floor button to the added loop terminal.
Figure 5: Standard Button Control (Fail-Safe):
Elevator Car
Floor Buttons
Elevator Car
Card Reader 1
Remove the connection between
the Elevator Car Floor button
and the Elevator Control system's Floor
Button input terminal.
Elevator Car
Floor Button
Connect the Elevator Car
Floor Button to the added loop
terminal
FAIL-SECURE
8
cdvigroup.com
Elevator Car
Floor Button
connection wires
Floor Button
terminals
Elevator
Control
System
Floor Button
Elevator
Control System
Floor Button's "common" terminal
Floor Button's input terminal
Loop terminal added
by installer
To
CAA480A
Elevator
Controller
To
relays
In order for the Fail-Safe method to function correctly,
the PWR OFF/ON DIP switch must be in the ON position.
CAA480A Elevator Controller
COM1
NO1
NC1
COM2
NO2
EN
E-BUS
To next
CTV900A
CAA480A
Controller
Elevator
Controller
Card Reader 2
for second
Elevator Car
ADRESS 1
ADRESS 2
ADRESS 4
ADRESS 8
RLY COMMS
RLY OFF/ON
DRM ENABLED
PWR OFF/ON
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