ECM Overview and Setup
100
UNT-SVX07E-EN
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 ZN
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.
Protect Funct
This function protects settings on the board that
affect the safety of the electric heat system.
Do NOT change this setting. This setting locks out
the following parameters from being changed, for
safe operation of the unit.
Table 42. Configuration settings of the motor control board for fan coil and cabinet heater units
Description on
Unit Label
User
Interface
Name
Typical User
Interface
Value
Description
Note:
These notes are provided for reference only,
and the motor control board label must be
used as the ultimate guide for setting up an
motor control board on specific units.
