User manual

TVS user manual Appendix G: Motor curves
59
The exception to the one-minute minimum is the power fail alarm. The power fail alarm
automatically triggers the relay on a loss of power.
For more information, read Programming alarm settings on page 35.
Alarm Configuration Setting Description
High temperature
K-AL
ON OFF
The highest temperature to which you can
safely allow your facility to rise; this cannot be
lower than low temperature alarm.
Low temperature
L-AL
ON OFF
The lowest temperature to which you can safely
allow your facility to fall; this cannot be higher
than high temperature alarm.
Probe damage
PbAd
ON OFF
Damaged or disconnected temperature probe
Power fail
PF
ON OFF
Incoming power interruption
 Temperature in °F/°C, range: 32.0 to 99.9°F (0 to 37.7°C)
Appendix G: Motor curves
Motor curves provide a way to proportionally increase or decrease speed, regardless of motor
manufacturer.
For example, a Multifan motor might require 130 VAC to run at 50% RPM, while a Marathon
motor might need 100 VAC to run at 50% RPM. Without a motor curve, the Multifan motor would
run at a slower RPM than the Marathon motor at the same settings.
Selecting the correct motor curve allows you to set, for example, 50 on the control, and get much
closer to 50% RPM on the motor then you would otherwise.
Use manual override or test mode to test and evaluate the operation and
performance of your fan motors. For more information, read
Testing settings
and equipment
on page 40.
 If your fan motors are not running at approximately the correct RPM for the control settings,
find your fan in the following table, and then select the motor curve for your fan manufacturer
and model/specification.