MAN0923_Issue 3_04/15
Touchpoint Pro
Operating Instructions
127
8. Maintenance
LED
Status
Flashing Sequence (1 = On)
Indication
Green
Good
1
0
Ready
1
0
Charging
1
0
Refreshing
1
0
Buffering
Yellow
Check
1
0
Overload
1
0
Replace batteries
1
0
Buffertime expired
1
0
Inhibit active
Red
Fault
1
0
Check wiring and fuse
1
0
Check Input Voltage
1
0
Check Temperature (not used)
Key:
Battery Size
Sets the charging current, This should be >10Ah for the TPPR 12Ah or 27Ah batteries, which
gives a charging current of 3.0A
Buffering
The input voltage is below the transfer threshold level, and the TPPR is running on battery power
(buffering). See Buffertime below.
Buffertime
A DC-UPS supplying nominal DC 24V @20A should provide power for
≈
15 mins with 12Ah
batteries, and
≈
30 mins with 27Ah batteries
Buffertime expired
Output has switched off due to the setting on the buffertime limiter, or buffering has stopped
because of battery discharge protection. This signal will be displayed for 15 minutes.
Buffertime Limiter
Sets how long the UPS will supply power. Usually set to infinity (
∞
), which allows the system to
run until power is restored or until the batteries discharge below working limits
Buffer Voltage
Sets the nominal output voltage. For the TPPR this is set to DC 24V
Charging
The battery capacity is below 85% and the batteries are charging
Inhibit active
Indicates that buffering ability is disabled (charging of batteries will continue) or that a buffering
event was aborted due to the inhibit function
Input Voltage
Input voltage is lower than the selected Buffer v 1.0V, or higher than the input
over-voltage protection (OVP) level
Overload
Indicates if the output current is higher than specified values or if the unit has shut down during
hiccup mode
Ready
The battery charge is above 85%, no wiring failure is recognized, input voltage is sufficient and
inhibit signal is not active
Replace batteries
Indicates that the batteries have failed the battery health check, and that both batteries should
be replaced as soon as possible
Caution: Before carrying out any work, ensure that the isolator switch is in the OFF (down) position