INSTALLING AN OUTPUT BOARD
1. Remove the controller from the case.
2. Lift up on the top bezel board latch while gently pulling out on the bezel/
display board assembly. Do NOT remove the display board from the
bezel.
3. Remove the output board by pulling it away from the other boards.
Replace the output board by aligning the board to board connector. Be
certain the connector is fully mated.
4. Connect the bezel/display board assembly by guiding the board ends into
the bezel latches. Slide the assembly on evenly until the display board
connector is completely engaged and bezel latches are fully seated onto
the boards.
Note: When replacing the output board, be certain to install a new output
board of the same type. Appropriate rewiring considerations must be given if
the output board type is changed.
T48/P48/TLA OUTPUT BOARD
MD1797
D
P
%P
DV
MN
A1
A2
EB0783
CONNECTOR
BOARD
DISPLAY
O1
LATCH
BEZEL BOARD
BOARD ASSEMBLY
BEZEL/DISPLAY
SECOND INPUT/RS485 BOARD *
POWER
BOARD
SUPPLY
CPU BOARD
%P
* MODEL NUMBER DEPENDENT
D
P
DV
MN
O1
A1
A2
CONNECTOR
OUTPUT BOARD
MD1797
EB078
3
EB078
4
OUTPUT BOARD
AL1
O1
AL2/O2
BOARD
OUTPUT
RELAY
OUTPUT BOARD
LOGIC/SSR DRIVE
AL1
O1
AL2/O2
LIMIT
AL1
#RBDLA210
Output Board
Form-C Relay
Bulletin No. RBD48-D
Drawing No. LP0347
Released 06/13
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
Caution: The bezel assembly contains electronic circuits that can be damaged by static electricity. Before removing the assembly, discharge static charge on
your body by touching an earth ground point. It is also important that the bezel assembly be handled only by the bezel itself. When handling a circuit board, be
certain that hands are free from dirt, oil, etc., to avoid circuit contamination that may lead to a malfunction.
SPECIFICATIONS & TYPICAL CONNECTIONS
Relay Connections
RBD48 Relay Outputs:
Type:
Form-A (Shared common for the Alarms)
Contact Rating:
3 A @ 250 VAC or 30 VDC (resistive load)
RBDLA Relay Outputs:
Limit Relay Type:
Form-C
Alarm 1 Relay Type:
Form-A
Contact Rating:
5 A @ 250 VAC or 30 VDC (resistive load)
Life Expectancy:
100,000 cycles at max. load rating. (Decreasing load and/
or increasing cycle time, increases life expectancy.)
To prolong contact life and suppress electrical noise interference due to the
switching of inductive loads, it is good installation practice to install a snubber
across the contactor. Follow the manufacturer’s instructions for installation.
Note: Snubber leakage current can cause some electromechanical devices to
be held ON.
CONTROLLER
LOAD
FUSE
01
AC/DC
POWER
N.O.
COMM.
LOAD
LOAD
FUSE
AC/DC
POWER
AL2/02
AL1
N.O.
COMM.
N.O.
Main Control Output
Alarm Outputs/Cooling
