Trane VUV Installation, Operation And Maintenance Manual page 59

Table 19. Operational status codes
RPM Mode
RUNNING/ FAN STATUS
CONTINUOUS LOOP
Displayed when:
1) No error codes are present
2) Motor has completed ramping
User Interface
The VelociTach™ motor control board's on-board user
interface is easy to use and supports:
• Verification/auditing of on-board parameter settings (read-
only)
• Adjustment of the on-board settings (write)
The user interface has three input buttons (see
p. 59), from left to right:
• Menu/Set
• Decrement
• Increment
UV-SVX005G-EN
mtr1
Indicates the current rpm of Motor 1 in the system. "0" rpm here
→
indicate that no fan speed has been requested.
0000 2000
mtr2
Indicates the current rpm of Motor 2 in the system. "0" rpm here
→
indicate a fan off condition OR a fan "missing" condition.
0000 2000
Fst1
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
"ECM Motors," p. 114
If "on," this indicates that the fan is performing correctly and will
yes no
/
be used to report fan status correctly, depending on
Fst2
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
"ECM Motors," p. 114
3) If the target speed for Motor 2 is "0,"this is used to indicate a
missing motor.
If "on," this indicates that the fan is performing correctly and will
yes no
/
be used to report fan status correctly, depending on
EhEn
Indicates that the temperature sensing circuit has calculated a
logical "on" based on the settings of the following parameters:
Yes no
Ai2m
/
Figure 69. User interface input buttons
Figure 69,
Each button has several different actuation levels depending
on length of press, and what the UI is currently displaying.
ECM Overview and Setup
for additional troubleshooting information.
for additional troubleshooting information.
ai2b aipu
/ /
FPRV
mode.
FPRV
mode.
59