Digital Input Connections - York YCAV0569 Installation Operation & Maintenance

MICRO PANEL
TABLE 22 lists the digital inputs and the circuit board
they are located on. The Digital input signals are typi-
cally referenced to the common (return, ground) in the
system.
TABLE 22 - DIGITAL INTPUT CONNECTIONS
BOARD
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
Chiller Control Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
VSD Logic Board
246
DIGITAL INTPUT CONNECTIONS
HEADER
J4-2
J4-3
J4-4
J4-5
J4-6
J5-1
J5-2
J5-3
J6-2
J6-3
J6-4
J6-5
J6-6
J7-1 to J7-2
J7-3 to J7-4
J7-5 to J7-6
J7-7 to J7-8
J7-9 to J7-10
J7-11 to J7-12
J1-10
J1-11
J1-12
J5-1 to J5-2
J5-3 to J5-4
J6-2
J6-5
J6-12
J7-2
J7-5
J7-12
J7-2
J7-5
J7-12
J8-2
J8-5
J8-12
J12-3 can also be used as common, as well as chassis
ground, or the common terminal point on the Chiller
Control Board. See the wiring diagrams.
ANALOG OUTPUT
Unit Switch 1
Unit Switch 2
Sys 1 HPCO
Sys 2 HPCO
VSD Fault Relay 1
Sys 3 HPCO
Sys 4 HPCO
VSD Fault Relay (Unused)
Flow Switch
Sys 1/3 Run Permissive
Sys 2/4 Run Permissive
2 Compressor Select
3 Compressor Select
4 Compressor Select
Comp 1 Phase A Gate Driver Fault
Comp 1 Phase C Gate Driver Fault
Comp 1 Phase B Gate Driver Fault
Comp 3 Phase A Gate Driver Fault
Comp 3 Phase C Gate Driver Fault
Comp 3 Phase B Gate Driver Fault
Comp 2 Phase A Gate Driver Fault
Comp 2 Phase C Gate Driver Fault
Comp 2 Phase B Gate Driver Fault
Comp 4 Phase A Gate Driver Fault
Comp 4 Phase C Gate Driver Fault
Comp 4 Phase B Gate Driver Fault
FORM 201.21-NM2 (616)
Print
Spare
Config0
Config1
Config2
Config3
Spare 0
Spare 1
JOHNSON CONTROLS