
Vertiv
|
+24 VDC Power System User Manual (Section 6013)
|
Rev. G
132
Additional MCA Messages
The following provides a list and descriptions of additional messages the MCA may display.
ARE YOU SURE? +-: MCA presents this query before changing an operating parameter.
TempCmp Hardware: The user tried to set the TC CAL value (line 83 on MCA Menu Tree Section 6022) to a
value when a temperature compensation module was not present, or to ANALOG TC OFF when a module was
present.
or
The user tried to set the temperature compensation probe's SLOPE value (line 83A on MCA Menu Tree Section
6022) to a value when a temperature compensation probe was not present, or to DIGITAL TC OFF when a
probe was present.
NOT RUNNING YET!: This is the normal display (instead of line 1 or 0 on MCA Menu Tree Section 6022) when
no Rectifier Modules are communicating with the MCA.
PASSWORD: $$$$$$: Pressing ALARM CUTOFF, FUNCTION SELECT UP, and FUNCTION SELECT DOWN at
the same time while viewing REMOTE INSTALLED or REMOTE ACTIVE (line 123 on MCA Menu Tree Section
6022) allows the user to view the remote access password.
TestEq Switch On: The user tried to set Float mode (line 42 on MCA Menu Tree Section 6022) while the
external test/equalize input switch was on.
Local Lockout On: The user tried to change an operating parameter while the local lockout jumper was in
place.
NO PCUs FOUND: Displayed instead of line 15 or 118 (on MCA Menu Tree Section 6022) when no Rectifier
Modules (PCUs) are communicating with the MCA.
NO SHUNTS FOUND: Displayed instead of line 120 (on MCA Menu Tree Section 6022) when no shunt A/D's
are communicating with the MCA.
NO LVDs FOUND: Displayed instead of line 121 (on the MCA Menu Tree Section 6022) when no LVDs are
communicating with the MCA.
NO TEMP SENSORS FOUND: Displayed instead of line 121A (on MCA Menu Tree Section 6022) when no
Temperature Sensors are communicating with the MCA.
Alarm(s) Active: The user tried to enter TEST ALM RELAYS mode (line 111 on MCA Menu Tree Section 6022)
when external alarms were active.
Bypass Circuit Card Requirement
A Bypass Circuit Card (P/N 513737) must be installed in every unused Quad Shunt POD Circuit Card or Quad
Low Voltage Disconnect Circuit Card Mounting Position in every Distribution Cabinet in the Power System.
Otherwise, the power system will not operate normally.