Bell & Gossett S13641B Technologic 5500 Series Pump Controller - Manual (Page 5)

1.1 PURPOSE OF MANUAL
1.1.1 This manual is furnished to acquaint you with some
of the practical ways to install, operate, and maintain
this unit. Read it carefully before doing any work on
your unit and keep it handy for future reference.
1.1.2 Equipment cannot operate well without proper care.
To keep this unit at top efficiency, follow the recom-
mended installation and servicing procedures out-
lined in this manual.
1.1.3 SAFETY INSTRUCTION
This safely alert symbol will be used in this manual
and on the unit safety instruction to draw attention to
safety related instructions. When used the safety alert
symbol means ATTENTION BECOME ALERT!
YOUR SAFETY IS INVOLVED! FAILURE TO FOL-
LOW THIS INSTRUCTION MAY RESULT IN A
SAFETY HAZARD.
1.1.4 Your Technologic 5500 Series Pump Controller
should have a safety instruction decal (part #S11550).
If the decal is missing or illegible contact your local
B&G representative for a replacement.
1.2 ADDITIONAL SAFETY REQUIREMENTS
1.2.1 Each motor must have a properly sized starter with
properly sized overload block to provide overload
and undervoltage protection. Ground fault protection
should be sized properly. Refer to local electrical
codes for sizing and selection.
1.2.2 Refer to the motor manufacturer’s I.O.M. (Installation
Operation Manual) for specific installation information.
1.2.3 Even when the motor is stopped, it should be consid-
ered “alive” as long as its controller is energized.
Keep hands away from the output shaft until the
motor has completely stopped and power is discon-
nected from the pump controller.
5
Section 1 - General
WARNING: Motor can start automatically. Keep hands
away from output shaft until motor is completely
stopped and input power is removed from the motor con-
trol panel. Lockout main power switch while working near
the motor shaft. FAILURE TO FOLLOW THESE INSTRUC-
TIONS COULD RESULT IN SERIOUS PERSONAL
INJURY, DEATH, AND/OR PROPERTY DAMAGE.
Glossary of Terms
AFD – Adjustable Frequency Drive; converts a constant
power input into a variable power output for the motor; a
device for controlling motor speed.
Alternation – Process of determining which pump will serve
as lead pump and which pump will serve as lag pump.
Bypass – Controller bypasses the AFD, pumps stop running
in variable speed mode and run at constant speed (50 Hz /
60 Hz).
Destage – To turn off a lag pump.
EOC – End Of Curve; point at which a pump is staged or
destaged.
I.O.M. – Installation Operation Manual.
Lag pump – Standby pump which activates only when lead
pump alone cannot efficiently provide sufficient pressure or
flow rate.
Lead pump – Duty pump which runs continuously until a
standby pump is required.
LED – Light emitting diode, located on OIP and controller.
OIP – Operator Interface Panel.
O.L. – Overload, device to protect a motor from overheating.
PID – Proportional Integral Derivative; 3 variables required
for error control.
Process variable – Signal generated by a sensor which is
set up to control the system.
Proof timer – Minimum time period before controller
acknowledges an input; time period for which a signal must
be stable before it is accepted by the controller as a
sustained and valid signal.
RTC – Real time clock.
Stage – To start a lag pump