Figure 52 - History Key - Quantech QWC4 Installation Operation & Maintenance

SECTION 6 - OPERATION
HISTORY
KEY

FIGURE 52 - HISTORY KEY

To access the HISTORY FAULT or NORMAL SHUT-
DOWN information, use the following steps:
1. Press the HISTORY key to display the initial his-
tory message (above). FAULT SHUTDOWN ap-
pears under CHOOSE HISTORY TYPE.
HISTORY CHOOSE HISTORY TYPE
◄ ► FAULT SHUTDOWN
2. To choose NORMAL SHUTDOWNS, use the ◄
key.
HISTORY CHOOSE HISTORY TYPE
◄ ► NORMAL SHUTDOWN
To return to FAULT SHUTDOWN, use the ► key.
3. Press the  key. If FAULT HISTORY is selected,
the screen (below) will be displayed.
FAULT HIST ## 18-MARCH-2012 10:34:58 AM
YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
The FAULT HISTORY contains data from the last 10
shutdowns, where ## is the history buffer number be-
tween one and 10, and YYYY is the fault description.
Buffer 01 gives the most recent fault information, and
10 is the oldest fault shutdown saved.
108
HISTORY KEY
To access the next FAULT HISTORY buffer number,
use the ► key; to return to the previous buffer number,
use the ◄ key.
To scroll backwards and forwards through the FAULT
HISTORY SHUTDOWN data, press the ▼ key. The
first screen will show the status of the SYSTEM. See
the example below:
SYSTEM COMPRESSOR RUNNING
The next press the ▼ key displays the ALL FAULTS
screen. The list below explains the configurations:
• ## is the FAULT HISTORY number.
• YYY is the ALL FAULT description.
• ZZ is the ALL FAULT number .
• WW is the total number of ALL FAULTS for the
current history.
FORM QWC4-NM1 (221)
ISSUE DATE: 02/28/2021
LD19539
For all faults generated by the control
panel, a snapshot of all system data will
be stored immediately before shutting
down. For VSD generated faults, the VSD
captures and transmits the VSD data, and
the control panel saves the control panel
data when the VSD opens the fault relay.
QUANTECH