Installation and Maintenance Manual

ECM Overview and Setup
UNT-SVX07D-EN 59
RPM Mode
RUNNING/ FAN STATUS
CONTINUOUS LOOP
Displayed when:
1) No error codes are present
2) Motor has completed ramping

Indicates the current rpm of Motor 1 in the system. “0” rpm
here indicate that no fan speed has been requested.
→

Indicates the current rpm of Motor 2 in the system. “0” rpm
here indicate a fan off condition OR a fan “missing”
condition
(a)
.
→

Indicates the status being calculated or Fan Motor 1. If “off,”
this indicates that either:
1) No fan speed is being requested or
2) The fan performance is failing to meet the request; refer
to “Troubleshooting (ECM),” p. 126 for additional
information.
If “on,” this indicates that the fan is performing correctly and
will be used to report fan status correctly, depending on
 mode.
/

Indicates the status being calculated or Fan Motor 2. If “off,”
this indicates that either:
1) No fan speed is being requested or
2) The fan performance is failing to meet the request; refer
to “Troubleshooting (ECM),” p. 126 for additional
information.
3) If the target speed for Motor 2 is “0,”this is used to
indicate a missing motor
(a)
.
If “on,” this indicates that the fan is performing correctly and
will be used to report fan status correctly, depending on
 mode.
/

Indicates that the temperature sensing circuit has
calculated a logical “on” based on the settings of the
following parameters:
///
(a)Motor 1 is the only motor in sizes 200, 300, 400, 600, and 800. Sizes 1000 and 1200 units contain two motors: Motor 1 (single shaft) and Motor 2
(double shaft).
UNT-SVX07_-EN.book Page 59 Friday, April 27, 2012 9:40 AM