Trane TR150 - List of LCP Errors

ALARM 126, Motor Rotating
High back EMF voltage. Stop the rotor of the PM motor.
WARNING 127, Back EMF too high
This warning only applies to PM motors. When the back
EMF is larger than 90%*U
invmax
(overvoltage threshold), and
does not fall to a normal level within 5 s, this warning
occurs.
WARNING 200, Fire Mode
Fire mode has been activated.
WARNING 202, Fire Mode Limits Exceeded
Fire mode has suppressed 1 or more warranty-voiding
alarms.
ALARM 250, New Spare Part
The power or switch mode supply has been exchanged.
ALARM 251, New Type Code
The frequency converter has a new type code.
4.6 List of LCP Errors
LCP errors are not warnings or alarms. They do not aect the operation of the frequency converter. Illustration 4.1 shows an
LCP error on the LCP.
Illustration 4.1 LCP Error Example
LCP error code Error message Description
Err 84 LCP comm. Lost Communication between the LCP and the frequency converter is lost.
Err 85 Key disabled
The LCP key is disabled. One of the LCP keys has been disabled in parameter group
0-4* LCP Keypad.
Err 86 LCP copy failed
Data copy failure. This error occurs when data is copied from frequency converter to
LCP, or from LCP to frequency converter (parameter 0-50 LCP Copy).
Err 88 Data not compatible
LCP data incompatible. This error occurs when data is being copied from LCP to
frequency converter (parameter 0-50 LCP Copy). The typical reason is that data is
moved between frequency converter and LCP that have major software
dierences.
Err 89 Read only
Parameter read only. An operation is issued via LCP to write a value to a parameter
that is read-only.
Err 90 Database busy The parameter database of the frequency converter is busy.
Err 91 Parameter invalid The parameter value that is input via the LCP is invalid.
Err 92 Exceeds limits The parameter value that is input via the LCP exceeds limits.
Err 93 Motor is running
The LCP copy operation cannot be performed when the frequency converter is
running.
Err 95 Not while running The parameter cannot be changed while the frequency converter is running.
Err 96 Password rejected The password that is input via the LCP is incorrect.
Table 4.4 LCP Error List
Troubleshooting TR150 and TR170
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