Quanser QNET 2.0 HVAC, Руководство пользователя

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4 Troubleshooting
4.1 General Software Issues
Q1 When I try to open a QNET HVAC VI, it says there are some missing VIs and they have a
CD
or
Sim
in the
name?
The LabVIEW™ Control Design and Simulation Toolkit is not installed.
Q2 When I open a QNET HVAC VI a message prompts that a VI with ''ELVIS'' in the name cannot be found?
The QNET HVAC VIs use the ELVISmx drivers. Make sure you install the contents of the NI ELVIS II
(+)
CD
before attempting to open any of the QNET HVAC VIs (available for download at www.ni.com ).
4.2 General Hardware Issues
Q1 None of the LEDs on the QNET HVAC board are lit.
Make sure both the
System Power
switch, which is located on the back of the NI ELVIS II
(+)
unit, and the
Prototyping Board Power
switch, which is situated on the top-right corner of the NI ELVIS II
(+)
, are ON .
Q2 On the QNET HVAC board, the
+15
V
,
−
15
V
,
and
+5
V
LEDs are bright green but the External Power LED is
not lit.
Ensure the QNET HVAC power connector on the QNET HVAC board is connected with the supplied QNET
HVAC power cable. If the LED is still not lighting up, check the
2 . 5
A
fuse of the QNET HVAC next to the power
connector. If it is burnt, replace it with an identical fuse (Schurter
0034 . 3121 , 5
mm
×
20
mm
, 2 . 5
A
, 250
VAC
,
time-lag fuse). To remove the fuse, push and turn the fuse holder counter-clockwise.
Q3 At least one of the +
15V
,
−
15V
, +
5V
and External Power LEDs on the QNET HVAC board is not lit.
• See Q2 above if only the External Power LED is not lit.
• If one or more of the +
15V
,
−
15V
, and +
5V
LEDs is not lit then a
±
15V
or +
5V
fuse(s) on the Protection
Board of the NI ELVIS II
(+)
has been triggered. Similarly, if the External Power LED is still not lit after
connecting the QNET HVAC power, the Variable Power Supplies Fuses on the NI ELVIS II
(+)
Protection
Board have been triggered. See the Protection Board Fuses in the NI ELVIS II
(+)
User Manual.
Q4 The Ready LED on the elvis does not go on.
(a) Go through the elvis setup procedure outlined in the QNET HVAC Setup Guide
(b) Once completed, launch the Measurement & Automation Explorer software.
(c) As illustrated in Figure 4.1 , expand the Devices and Interfaces and NI-DAQmx Devices items and select
the NI ELVIS II
(+)
device.
(d) As shown in Figure 4.1 , click on the
Reset Device
button.
(e) Once successfully reset, click on the
Self-Test
button.
(f) If the test passed, reset the elvis (i.e. shut off the Prototyping Board switch and System Power switch
and turn them back on again). The Ready LED on the elvis should now be lit.
QNET HVAC - User Manual 14