ECM Overview and Setup
78
UNT-SVX07J-EN
AI Boost Amp
AiSc
1
Boosts or attenuates the analog input signal to
compensate for long wire runs.
A value of
1
should be used if no voltage level
compensation is needed (i.e., voltage peak is at
10 VDC).
AI Floor
vFlr
0
.
5
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
Fdbk
18
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
pvl1
0
.
03
Sets up the on board closed loop control to
control Motor 1 with proper stability.
Do not change this setting.
I Value Mtr 1
Ivl1
0
.
03
Sets up the on board closed loop control to
control Motor 1 with proper stability.
Do not change this setting.
P Value Mtr 2
pvl2
0
.
03
Sets up the on board closed loop control to
control Motor 2 with proper stability.
Do not change this setting.
I Value Mtr 2
Ivl2
0
.
03
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
Ai2m
85
Sets the make value for the motor control board
triac output based on the thermistor input.
Operation also depends on
Fprv
,
Ai2B
, and
Aipu
settings.
Ht Sens Bk Val F
Ai2b
90
Sets the break value for the motor control board
triac output based on the thermistor input.
Operation also depends on
Fprv
,
Ai2m
, and
Aipu
settings.
Ht Sens Resistor
AiPu
out
Sets the input impedance of the thermistor
input.
Should be pre-set to “OUT” for Tracer® ZN
controllers.
Mt 1 Ramp %/sec
M1rp
3
Sets the ramp rate for Motor 1, in % per second.
Mt 2 Ramp %/sec
m2rp
3
Sets the ramp rate for Motor 2, in % per second
EH Ramp Accel
Ehrp
2
Sets the acceleration factor for the electric heat
inputs.
Is used to force faster ramps when electric heat
is requested.
Ramp MAX Time
Mhrp
15
Sets the maximum ramp time for both Motor 1
and Motor 2 (in seconds).
Overrides the ramp rates
M1rp
and
M2rp
if
the
calculated ramp time exceeds
Mhrp
.
EH Fan off delay
EHdl
15
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
Lrpt
on
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
Ehpt
on
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.
AiPU
FPrv
AiMK
AiBK
E1M1
E1M2
E2M1
E2M2
Sig
Mod1
Mod2
M1Hi
M1Lo
Rmp dft (auto rst)
rpdf
off
This function shortens the ramps for faster unit
commissioning and auto-resets to off after
approximately 15 minutes of power-on
operation.
To aid in commissioning of the unit, for
approximately 10–15 minutes, the ramps will be
shortened to quickly observe proper unit
behavior and response to speeds.
Soft Rev
soft
vx.xx
Displays the software version.
Module should be received with most recent
version.
Table 38. Configuration settings of the motor control board (for reference only) (continued)
Description on
Unit Label
User
Interface
Name
Typical User
Interface
Value
Description
Summary of Contents for UniTrane
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