Bell & Gossett S13641B Technologic 5500 Series Pump Controller - Manual (Page 31)

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6. Turn R9 fully counter-clockwise.
7. Cycle power.
8. Slowly turn R9 clockwise until 24 VDC is obtained
at the output.
9. Cycle power and verify that 24 VDC is present at
the output.
5.8 PROTECTION
5.8.1 Analog inputs - the analog inputs provided on the
Technologic 5500 Pump Controller must be wired
according to the wiring diagram that shipped with the
unit.
5.8.2 Protection - all analog inputs are protected from high
voltage, crossed wiring, etc. A sustained fault will be
limited to 20mA by the current limiting circuit.
5.8.3 Digital Inputs - as long as input power is derived from
the integral 24VDC power supply they are protected.
5.8.4 Digital Outputs - each output shall not exceed the
ratings on the digital output module.
5.8.5 The digital outputs are fuse protected, replace with a
5x20mm SPT 5A time lag fuse only.
5.9 INSTRUMENTS AND THEIR USE
With the diagnostics described herein extensive
instruments are not required. However, the instru-
ments used should be quality units to meet the fol-
lowing at a minimum.
Under no circumstances shall any instrument be
used to test any on board components. Especially
risky is an ohmmeter with battery voltage higher than
TTL logic or applied with incorrect polarity.
5.9.1 AC/DC Voltmeter -
-
Input impedance shall not be less than 10 MEGOHM.
- Accuracy - AC ± 2% of Full Scale
- DC ± 3% of Full Scale
- Rated circuit to ground voltage = 1000V.
5.9.2 OHMMETER
-
Accuracy ± 2_%
- Max open circuit voltage = _ volt
5.9.3 Millimeter
-
Accuracy ± 2% of Full Scale
5.9.4 Signal Generator (analyzer) - recommended
A. Beta calibrator Model 434 20mA signal analyzer.
B. Altek calibrator Model 334 4-20mA loop analyzer.
Either instrument may be purchased from a Local
Process Control Distributor.
NOTE: If some other instrument is used it must float
above ground, preferably battery powered.
5.10 FIELD REPAIR
5.10.1 General - typical field repair should include: replacing
fuses, replacing input/output modules and assuring
connections are correct and secure.
5.11 PROGRAM UPDATING
To update to a new version of the program the pro-
gram must be down loaded through the RS 232 port
on the CPU. This can be accomplished by one of the
following means:
1) Down loaded by factory authorized service techni-
cian at the job site.
2) Replacing the CPU module with one that was pre-
programmed at the factory.
3) Down loading the program from the factory to the
CPU via factory supplied modem.
Contact your Bell & Gossett representative for the
preferred method of upgrading your software.
5.12 PROGRAM TYPE AND VERSION NUMBER
To check the program type and version number
press the F3/8 key while at the Technologic Pump
Controller screen.
5.12.1 The screen will now display:
Sys Info CPU V xxx
AS V xxx OS V xxx
Prog Type: xxxxx #xx
Scheme Set xx
Press the CLEAR key to exit this screen.
5.12.2 The # symbol will be replaced by the actual version
numbers and program type. If the factory is called
for information or service on this unit this information
may be requested.
5.13 DATA LOGGING
5.13.1 To view data recorded to the memory, press the F1/5
key while at the Technologic Pump – See the follow-
ing table for data logging.
5.13.2 Pump – See the following table for data logging.
DANGER: Troubleshooting live control panels exposes
personnel to hazardous voltages. Electrical trouble-
shooting must only be done by a qualified electrician. FAIL-
URE TO FOLLOW THESE INSTRUCTIONS COULD
RESULT IN SERIOUS PERSONAL INJURY, DEATH,
AND/OR PROPERTY DAMAGE. DANGER: Troubleshooting live control panels exposes
personnel to hazardous voltages. Electrical trouble-
shooting must only be done by a qualified electrician. FAIL-
URE TO FOLLOW THESE INSTRUCTIONS COULD
RESULT IN SERIOUS PERSONAL INJURY, DEATH,
AND/OR PROPERTY DAMAGE.