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Troubleshooting
TruVu™ MPC Processor
CARRIER CORPORATION ©2021
Installation and Start-up Guide
All rights reserved
56
To get the TV-MPCXP's serial number
If you need the controller’s serial number when troubleshooting, the number is on:
•
A Module Status report (Modstat).
•
A laser-etched number and QR code on the circuit board inside the controller.
•
Some controllers have a sticker on the front with the serial number, MAC address, and a QR code.
See
To get a Module Status report
(page 55).
To replace the TV-MPCXP's fuses
The TV-MPCXP has 2 fuses:
Symptoms of a blown fuse:
•
TV-MPCXP's power fuse
—The controller’s
LED is not lit.
•
I/O bus edge connector fuse
—
The
LED is not lit on downstream expanders connected to the edge
connector.
NOTE
If the TV-MPCXP's power fuse blows but not the I/O bus edge connector fuse, the TV-MPCXP will be off but
not the downstream expanders.
If you suspect a fuse is blown, remove the fuse as described below, and use a multimeter to check it. If the fuse is
blown, try to determine why it blew before you replace it. Check the power wiring polarity of the TV-MPCXP and any
other devices that share the power supply. Use the same polarity for all of them.
The fuses are fast-acting, 5mm x 20mm glass fuses that you can purchase from one of the following vendors:
Manufacturer
Mfr. Part #
for 2A fuse
Mfr. Part #
for 4A fuse
Littelfuse
Bussmann
Belfuse
Optifuse
0217002.HXP
S500-2-R
5SF 2-R
FSD-2A
0217004.HXP
S500-4-R
5SF 4-R
FSD-4A
Содержание TruVu MPC
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