Lynxspring JENEsysONE JO-PC1, Mounting Manual, Page: 22 / 26

JO-PC1 Base Controller Mounting and Wiring Guide
Updated: January 16, 2012 Part Number JO-PC1 rev 1
Replacement Parts
New Replacement Units
22
New Replacement Units
To replace a faulty unit, order and install a new JO-PC1 controller—please note this series of products does not
have special “field replacement units,” or FRUs, with separate part numbers.
If the faulty JO-PC1 is still in warranty , you can receive credit by returning it. Be sure to contact the vendor for
a return material authorization (RMA) number before shipping an item for return credit. See “Returning a
Defective Unit,” page 23, for more details.
Note
Before ordering a new JO-PC1, it is strongly recommended that you contact your normal technical
support resource to eliminate the possibility of a software issue or mis-configuration problem.
Replacing the JO-PC1 base assembly
Caution
Before handling circuit boards, discharge any accumulated static by touching the metal surface of
the JO-PC1. For details, see the
“Static Discharge Precautions” section on page 3.
To replace the JO-PC1 base assembly in the field, proceed as follows:
Procedure 8 Replacing a JO-PC1 base assembly.
Step 1
Using the appropriate NiagaraAX software tool, back up the controller’s configuration to your PC.
Step 2
Remove power to the controller. The unit should power down automatically.

Wait for all LEDs to remain off.
Note
If IO accessory modules are installed, and any I/O points have voltage, turn the devices off or
disconnect power to them.
Step 3
Note positions of all communications and other wiring cables going to the JO-PC1, as well as all
installed accessory modules (if they must be removed). If necessary, label connectors and accessory
modules to avoid mis-connection later, after JO-PC1 is replaced.
Step 4
Unplug all Ethernet, serial, LON, modem, and I/O connectors from the JO-PC1, and unplug its earth
ground wire.
Step 5
If IO accessory modules are installed:
–
If DIN rail mounting with DIN end-clips was used, you may be able to remove the DIN rail end clip
that secures the JO-PC1 end of the assembly, and then
slide the controller away from the rest of the
assembly. Then you can remove the controller from the DIN rail (see Figure 1 on page 6), leaving the
mounting and wiring of IO modules untouched.
In this case, after removing the JO-PC1 controller from the DIN rail, skip ahead to Step 6 .
–
If tab (screw) mounting was used instead of DIN rail mounting, or if a combination of DIN rail
mounting and tab screws (into the JO-PC1’s “accessory side” tab holes, see last page ), you will need
to remove the accessory modules first , before removing the JO-PC1.