1
DESCRIPTION
This bulletin serves as a guide for the installation of PAX Setpoint cards. The
setpoint cards are available as dual relay, quad relay, quad sinking transistor,
quad sourcing transistor/SSR drive, or dual triac/dual SSR drive outputs.
INSTALLING A PAXCDS OPTION CARD
Caution: The option and main circuit boards contain static
sensitive components. Before handling the cards, discharge static
charges from your body by touching a grounded bare metal
object. Ideally, handle the circuit boards at a static controlled
clean workstation. Dirt, oil or other contaminants that may
contact the circuit boards can adversely affect circuit operation.
Warning: Exposed line voltage may be present on the circuit
boards when power is applied. Remove all power to the unit AND
load circuits before accessing the unit.
1. When handling the main circuit board, hold it by the rear cover. When
handling the output card, hold it by the terminal block.
2. Remove the main assembly from the rear of the case by squeezing both finger
holds on the rear cover and pulling the assembly out of the case. Or use a
small screwdriver to depress the side latches and pull the main assembly out
of the case. Do not remove the rear cover from the main circuit board.
3. Install the output card by locating the PAXCDS output card slot location on
the main circuit board. Align the option card terminal block with slot # 3
terminal block position of the rear cover. Align the PAXCDS connector with
the main circuit board option card connector and then press to fully engage
the connectors. Verify that the tab on the option card rests in the alignment
slot on the display board.
4. If installing a PAXCDS60 option card; a knock-out on the top of the PAX case
will need to be removed to allow the PAXCDS60 top terminal block to be
inserted later. Locate the shaped knock-out, positioned at the Setpoint
Option, Option Slot 3, location. When looking at the case from the back with
knock-outs on top, it is the shaped knock-out on the right. Carefully
remove the knock-out, being careful not to remove any additional knock-outs.
Trim any knock-out tabs (gates) that remain on the case. Complete Step 5 and
then plug the PAXCDS60 top terminal into the PAXCDS60.
5. Slide the assembly back into the case. Be sure the rear cover latches fully
engage in the case.
6. Apply the option card label to the bottom side of the unit. Do not cover the
vents on the top surface of the unit. The surface of the case must be clean
for the label to adhere properly. Apply the label to the area designated by the
large case label.
MODEL PAXCDS -SETPOINT OUTPUT OPTION CARDS
Finger
Tab
Finger
Tab
Slot #
Alignment
Slot 3
Main
Circuit
Board
123
PAXCDS
Option Card
Connector
Rear
Cover
PAXCDS Rear
Terminal Block
Position
SETPOINT
OUTPUT
CARD
LABEL
SERIAL
OUTPUT
CARD
LABEL
MAIN LABEL
(bottom of unit)
ANALOG
OUTPUT OR
REAL-TIME
CLOCK CARD
LABEL
25
QUAD SINKING
23
24
22
20
21
- 04 SNK.
PAXCDS30
- COMMON
- 03 SNK.
- 01 SNK.
- 02 SNK.
- COMMON
25
DUAL RELAY
23
24
22
20
21
PAXCDS10
25
QUAD RELAY
23
24
22
20
21
PAXCDS20
25
QUAD SOURCING/SSR DRIVE
23
24
22
20
21
- 04 SRC.
PAXCDS40
- COMMON
- 03 SRC.
- 01 SRC.
- 02 SRC.
- EXTERNAL SUPPLY
25
DUAL TRIAC/DUAL SSR DRIVE
23
24
22
20
21
TRIAC 2
- 04 SSR
TRIAC 1
COMM 1/2
PAXCDS50
- COMM 3/4
- 03 SSR
RLY1
RLY2
RLY1
COMM
RLY2
RLY3
COMM
RLY4
PAXCDS TERMINAL CONNECTIONS
TOP VIEW
Bulletin No. PAXCDS-J
Drawing No. LP0400
Released 01/15
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
N.O.
N.C.
COMM.
N.O.
N.C.
COMM.
N.O.
N.C.
COMM.
N.O.
N.C.
COMM.
RELAY 4 RELAY 3
123456
QUAD FORM C RELAY
PAXCDS60
RELAY 1RELAY 2
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