23
Error/Trouble Condition
Possible Cause
Solution
Display shows: "
Factory Calibration
has been lost. Return to Factory for
Calibration
".
Non-recoverable EEPROM
checksum error of factory calibration
data, ER01.
Return unit to factory for calibration.
Display shows: "
Setup information
has been lost. Loading Default
Values Please Wait...
".
Recoverable EEPROM checksum
error of unit setup configuration,
ER02.
Unit will auto recover by rebooting
and then displaying message: "
Setup
information has been lost, default
configuration loaded. User should
reconfigure
." User should press
Ok/ Cancel
(User Acknowledgement)
so that device enters into default
screen.
User cannot enter into menus
because of password protection.
User has lost password.
Use default password "351".
MRMS does not come online
Two or more controllers have the
same MAC address.
Modify each duplicate address to a
unique number.
Two or more controllers have the
same Device ID.
Renumber the Device ID to a unique
number.
The MS/TP network has too many
devices.
Do not exceed the maximum number
of devices and maximum length
allowed by the EIA-485 specifications.
Too many devices were installed
without any repeaters.
Repeaters need to be installed as
specified in this document.
The MS/TP cable runs are broken.
Locate the break and correct the
wiring.
MS/TP connections at the module
were reversed.
Respect polarity of the wires on a
MS/TP network.
The APM2 Central Display does not
have power.
Apply power to the APM2 Central
Display.
Section 4:
Troubleshooting
