York OPTIVIEW YK Service Instructions Manual page 312

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SECTION 34 - DIAGNOSTICS AND TROUBLESHOOTING
5. Press the ENTER () key. The entered voltage
value and corresponding current value will be
shown in the selected output box. The voltage val-
ue is at terminal 2 of the selected output. The cur-
rent value is at terminal 1 of the selected output.
Digital inputs
The state of each Digital Input is directly depicted by
an LED. When the input is high (120 VAC or +5 VDC),
the LED is illuminated). Otherwise, it is extinguished.
DIGITAL OUTPUTS
The state of each output is depicted by an LED. When
the output is ON, it is illuminated. Otherwise, it is ex-
tinguished.
To test an output, each output can be manually set
to ON or OFF. The motor controller circuit must be
opened before manual control is allowed. Removing J2
from the I/O Board opens this circuit. When Diagnos-
tic Mode is exited (DIP Switch 3 is set back to the OFF
position), outputs revert to Program control.
312
To manually set the output:
1. Press SELECT DIGITAL OUTPUT key. A yellow
arrowhead will appear to the right of the first digi-
tal output.
2. Use the UP and DOWN arrow keys to place the
arrowhead at the desired output.
3. Press ENABLE OUTPUT key to turn the output
on. Press the DISABLE OUTPUT key to turn the
output off.
MODBUS COMMUNICATION ERROR
COUNTERS
The following error counts are displayed:
• ID Faults
• Checksum Errors
• Error Packets
• Timeout Faults
Press the RESET ERROR COUNTERS key to reset
these counters to zero.
JCI COMPANY CONFIDENTIAL
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS

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