Roberts Gorden CORAYVAC, Руководство по установке

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SECTION 8: P
ROGRAMMING AND
T
ROUBLESHOOTING THE
S
YSTEM
63
pre-heat, bringing the temperature in the space up to
occupied setpoint.)
• 'Door Switch "1" and "2" Enable' : On or Off (this
setting allows users to wire in a door switch to the
controller to prevent the heating system from operat-
ing while a door is open. Setting must be set to "On"
in two separate locations; in the
Configuration-
Zone screen and the Configuration-Unit screen. If
the switches are set up differently in the separate
screens, power will not go to the burners. If users do
not have this option in their system, set to "Off".)
8.8 Maintenance
• Use this screen to quickly clear Vacuum Pump
Alarms or Air Pressure Switch (APS) Alarms.
• The Vacuum pump alarm activates when a com-
mand is issued to the VFD’s to run and the pres-
sure switch is not closed within a certain amount
of time.
• The APS Alarm activates when the APS is closed
before a run command is issued to the pump.
• Check the box next to the active alarm and wait
for the check to clear before navigating away from
the screen.
8.9 Alarms
• Alarm screen can be accessed from the alarm
bell on home screen or through the MENU.
• Use this screen to see which alarms
are active, if any. Use the info button for
more information about the alarm
• The red exclamation point on home screen is an
alarm history, NOT necessarily active alarms.
8.10 Alarm Configuration
• The preconfigured alarm times in this screen
should not be changed. The Vacuum Pump 1 and
2 APS Delay alarms default to 2 minutes. This
gives the system 2 minutes to prove the APS, and
if the APS drops out during operation, the alarm
trips after 2 minutes.
• The APS1 and 2 pre-start delay gives the system
5 seconds to check that the APS is not already
closed before the pump starts.
• The Auto-Reset feature for each pump can be
optionally turned OFF if desired. This feature will
clear Vacuum Pump/APS related alarms up to 2X
before locking out on the third alarm, within a 30
minute window. After 30 minutes if lockout has not
occurred, the counter resets. Turning this feature
OFF means the system will lock out at the first
alarm.
8.11 VFD Status
• Use this screen to check running parameters of
the VFD. Nominal Motor Voltage is programmed
into the drive during VFD setup. The remaining
parameters are real time values.