11-4
Service
Service
Replacing the Controller Battery
The Controller is supplied with a lithium battery, which
maintains the internal memory during power outages.
It is recommended that the battery be replaced every
one to two years to prevent memory loss. The system
has an alarm,
Control Battery Low",
to indicate
when the battery is getting low. See page 10–12.
CAUTION
If the battery fails or is not installed correctly, the
Controller memory could be lost. Backup the Preci-
sionMix II 3K configuration, using the Graco Preci-
sionMix II 3K Maintenance Utilities software, periodi-
cally and before changing the Controller battery.
Then if a problem occurs, the information can be
reloaded. This software is on a CD, included with the
system.
Changing the Battery
1.
Back up the PrecisionMix II 3K configuration, using
the Graco PrecisionMix II 3K Maintenance Utilities
software.
2.
Turn off the power before disconnecting the cables
to avoid damaging the system.
3.
To have access to the battery door, disconnect the
cables from the Controller communications ports,
CAN (H) and RS232 (J). See Fig. 11.2.
4.
Turn the power back on.
WARNING
ELECTRIC SHOCK HAZARD
Only qualified electricians should per-
form this procedure. To avoid losing the
Controller memory, the power must be
on while the battery is changed.
Do not touch the
circuit board while the power is on as this
could cause electric shock.
5.
Remove the battery door (K). Pull lightly on the
battery ribbon until the battery pops out of the slot.
6.
Install the new battery (part no. 114836) into the
battery slot, with the ribbon underneath the battery.
Install the battery door (K).
7.
Turn off the power before connecting the cables.
8.
Reconnect the communication cables.
9.
Turn the power back on again. If a “Memory Fail-
ure” alarm occurs, the system memory was lost.
Restore the memory with the PrecisionMix II 3K
Maintenance Utilities software, provided with the
system.
NOTE:
Write down the date the battery was replaced
for future maintenance reference.
Fig. 11.2
CP
Interface
H
J
K
Summary of Contents for PrecisionMix ii
Page 6: ...6 ...
Page 7: ...1 1 Warnings Warnings 1 ...
Page 8: ...1 2 Warnings ...
Page 11: ...Overview 2 1 Overview 2 ...
Page 12: ...2 2 Overview ...
Page 15: ...Overview 2 5 ...
Page 31: ...Installation 3 1 Installation 3 ...
Page 32: ...Installation 3 2 ...
Page 58: ...Installation 3 28 Notes ...
Page 67: ...Operation 4 1 Operation 4 ...
Page 68: ...Operation 4 2 ...
Page 83: ...Operation 4 17 Notes ...
Page 90: ...Operation 4 24 ...
Page 91: ...Screen Map 5 1 Screen Map 5 ...
Page 92: ...5 2 Screen Map ...
Page 94: ...5 4 Screen Map ...
Page 95: ...Run Monitor 6 1 Run Monitor 6 ...
Page 96: ...Run Monitor 6 2 ...
Page 103: ...Totalizers 7 1 Totalizers 7 ...
Page 104: ...Totalizers 7 2 ...
Page 108: ...Totalizers 7 6 ...
Page 109: ...System Configuration 8 1 System Configuration 8 ...
Page 110: ...System Configuration 8 2 ...
Page 142: ...System Configuration 8 34 ...
Page 143: ...Recipe Setup 9 1 Recipe Setup 9 ...
Page 144: ...Recipe Setup 9 2 ...
Page 165: ...10 1 Troubleshooting Troubleshooting 10 ...
Page 166: ...10 2 Troubleshooting ...
Page 182: ...10 18 Troubleshooting ...
Page 183: ...11 1 Service Service 11 ...
Page 184: ...11 2 Service ...
Page 192: ...11 10 Service ...
Page 193: ...12 1 Parts Parts 12 ...
Page 194: ...12 2 Parts ...
Page 207: ...12 15 Parts Notes ...
Page 228: ...12 36 Parts ...
Page 229: ...13 1 Utilities Software Utilities Software 13 ...
Page 230: ...13 2 Utilities Software ...
Page 254: ...13 26 Utilities Software ...
Page 255: ...14 1 Technical Data Technical Data 14 ...
Page 256: ...14 2 Technical Data ...
Page 259: ...14 5 Technical Data Notes ...