Wire Pattern Control Board
334784G 19
PLC Inputs and Outputs Installation (optional)
Functions:
Specifications
NOTE: To connect a dry contact signal, route GND to
one terminal and connect 24 VDC signal through the dry
contact to the other terminal (see image below).
Alarms indicated by output relays. See Troubleshoot-
ing Error Codes, page 45 for more details.
Type Function Description
Input ENABLE Turns the controller on and off (rising edge enables, falling edge disables).
Integrated systems: Turn the heat on/off using the InvisiPac PLC input
(instead of this input). The pattern controller will be turned on by the InvisiPac
system once the InvisiPac goes inactive.
DISABLE Disables the pattern controller (pull high to disable)
NOTE: DISABLE polarity can be changed with the invert disable input setting.
See General Setup (Screen 4), page 32.
PROGRAM
SELECT
Bits select a program to run (1-15) i.e. 1010 selects program #10
NOTE: 0000 disables PLC selection (local program selection ADM)
Output ALARM 1 Relay opens for active alarm(s) on Line 1
ALARM 2 Relay opens for active alarm(s) on Line 2
Inputs Outputs
• Bipolar Input • Dry contact output
• Electrically isolated • 0-24 VDC or 0-240 VAC
• 0-30 VDC • 2A max
• Min. 10 VDC to assert
• Sinks 10 mA at 24 VDC
PCM PLC Output
Customer Input
24 VDC, 240VAC, 2A
Max
To Customer Input
PCM PLC Input
Customer Output
Vin (no polarity)
30 VDC Max
Dry Contact
(customer supplied)
Customer
PCM
(Jumper Wire)
“+”
(24 VDC)
“-”
(GND)
Code Description
A40P Over-current on accessory
power supply output
A4XP Over-current on communication
cable output
A4_P Over-current on valve output “_”
K4_P Encoder “_” pulse rate exceeds
maximum limit
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