Trane FCV - Page 45

ECM Overview and Setup
UNT-SVX041D-EN 45
Fan Proving Fct
 
Selects which mode should be assigned to the
Binary output circuit, depending on unit type.
This setting has to be correct for proper unit
operation of electric heat and changeover units.
AI Boost Amp
 
Boosts or attenuates the analog input signal to
compensate for long wire runs.
A value of
 should be used if no voltage level
compensation is needed (i.e., voltage peak is at
10 VDC).
AI Floor

.
Rejects noise on the analog input lines and sets
up the motor control board to turn on if the
thermostat or controller is commanding its
analog outputs on.
PulsePerRev
 
Sets up the tachometer function to be
compatible with the on-board motor and for
correct speed calculation and calibration.
Do not change this setting as this is critical to
proper unit operation.
P Value Mtr 1

.
Sets up the on board closed loop control to
control Motor 1 with proper stability.
Do not change this setting.
I Value Mtr 1

.
Sets up the on board closed loop control to
control Motor 1 with proper stability.
Do not change this setting.
P Value Mtr 2

.
Sets up the on board closed loop control to
control Motor 2 with proper stability.
Do not change this setting.
I Value Mtr 2

.
Sets up the on board closed loop control to
control Motor 2 with proper stability.
Do not change this setting.
Ht Sens Mk Val F
 
Sets the make value for the motor control board
triac output based on the thermistor input.
Operation also depends on
, , and
 settings.
Ht Sens Bk Val F
 
Sets the break value for the motor control board
triac output based on the thermistor input.
Operation also depends on , , and
 settings.
Ht Sens Resistor
 
Sets the input impedance of the thermistor
input.
Should be pre-set to “OUT” for Tracer®
UC400-B controllers.
Mt 1 Ramp %/sec
 
Sets the ramp rate for Motor 1, in % per second.
Mt 2 Ramp %/sec
 
Sets the ramp rate for Motor 2, in % per second
EH Ramp Accel
 
Sets the acceleration factor for the electric heat
inputs.
Is used to force faster ramps when electric heat
is requested.
Ramp MAX Time
 
Sets the maximum ramp time for both Motor 1
and Motor 2 (in seconds).
Overrides the ramp rates
 and  if
the
calculated ramp time exceeds
.
EH Fan off delay
 
Selects how long the fan needs to stay on after
an electric heat request has been turned off.
Not used on fan-coil unit.
Lck Rtr Protect
 
Selects whether to use the on-board locked
rotor protection function.
This will shut down the affected motor, if
rotational response is not detected.
Table 24. Configuration settings of the motor control board (for reference only) (continued)
Description on
Unit Label
User
Interface
Name
Typical User
Interface
Value Description