HP R1500 HP R1500 G3 UPS User Guide - Page 33

UPS cannot communicate with the host computer, UPS emits a slight clicking noise, Site wiring

Get HP R1500 - UPS XR PDF manuals and user guides View all HP R1500 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 33 highlights

UPS cannot communicate with the host computer Action: • Verify only one communications port is connected to the host computer ("Connecting the host computer" on page 14). • If an option card is installed, verify the host computer is only connected to the option card. Installing an option card automatically disables the built-in serial and USB communications ports. UPS emits a slight clicking noise Action: The UPS is automatically correcting high or low AC voltage on the utility line. No action is required. Site wiring condition Action: Contact a qualified electrician to be sure that: • The line and neutral wires are not reversed in the wall outlet. • A ground wire connection does not exist. Troubleshooting 33

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
Troubleshooting 33
UPS cannot communicate with the host computer
Action:
•
Verify only one communications port is connected to the host computer ("
Connecting the host computer
"
on page
14
).
•
If an option card is installed, verify the host computer is only connected to the option card. Installing an
option card automatically disables the built-in serial and USB communications ports.
UPS emits a slight clicking noise
Action:
The UPS is automatically correcting high or low AC voltage on the utility line. No action is required.
Site wiring condition
Action
: Contact a qualified electrician to be sure that:
•
The line and neutral wires are not reversed in the wall outlet.
•
A ground wire connection does not exist.