Bell & Gossett S13641B Technologic 5500 Series Pump Controller User Manual

Page 27

4.6.2

Remote Automatic Operation

With the LOCAL-REMOTE-OFF (L-R-O) switch in the
REMOTE position check that the LED indicators on
the Operator Interface Panel (OIP) are as follows:

LED

Condition

Meaning

Start/Stop

Flashing Green

System is stopped.
No pumps running.

Pump 1 On/Off

Flashing Green

Pump1 is enabled
but not on.

Pump 2 On/Off

Flashing Green

Pump2 is enabled
but not on.

If a pump is not running this means the start contact
(from the energy management system or other
source) is not closed and the controller has not been
given a start signal.

Once operating in remote it is possible to stop opera-
tion (i.e., override the remote start command) by
either turning the L-R-O switch to off or by pressing
the START/STOP key on the OIP. It is recommended
to TURN THE L-R-O SWITCH TO OFF to stop the
system if it is running in remote.

4.7

D4 OPERATION

Confirm the setup of the following items:

Section

Item

Value

3.5.3

Total # of pumps

3.7.1

PV stage speed %

95%

3.7.1

EOC pump max. flow

max.

pump

flow

3.11.1

Number of pumps in bypass

1 - 2

4.7.1

Local Automatic Operation

With the Local-Off-Remote (L-R-O) switch in the
LOCAL position check that the LED indicators on the
Operator Interface Panel (OIP) are as follows:

LED

Condition

Meaning

Start/Stop

Flashing Green

System is stopped.
No pumps running.

Pump 1 On/Off

Flashing Green

Pump1 is enabled
but not on.

Pump 2 On/Off

Flashing Green

Pump2 is enabled
but not on.

Take note of the pump sequence. The first pump in
the sequence will be the lead pump. The other pump
will stage on if it is needed to maintain setpoint. To
change which pump is the lead pump press the
ALTERNATION/4 key.

Press the START/STOP key. The flashing green LED
will turn solid green and the message STARTUP-
STANDBY will be displayed. After a brief delay the
lead pump LED will turn solid green indicating that it
is running variable speed. It will then try to maintain
setpoint by varying pump speed. The remaining
pump will stage on if required.

4.7.2

Remote Automatic Operation

With the LOCAL-REMOTE-OFF (L-R-O) switch in the
REMOTE position check that the LED indicators on
the Operator Interface Panel (OIP) are as follows:

LED

Condition

Meaning

Start/Stop

Flashing Green

System is stopped.
No pumps running.

Pump 1 On/Off

Flashing Green

Pump1 is enabled
but not on.

Pump 2 On/Off

Flashing Green

Pump2 is enabled
but not on.

If a pump is not running this means the start contact
(from the energy management system or other
source) is not closed and the controller has not been
given a start signal.

4.8

SPECIAL PROGRAMS

4.8.1.

If your nameplate does not indicate one of the model
numbers defined above the program was created
per specific customer needs. The local and remote
operation logic will be similar to that defined in the
above sections. Job specific setup menus and draw-
ings will be included with the unit. If additional infor-
mation is required contact your local Bell & Gossett
representative.

4.9

PUMP ROTATION

4.9.1

It will be necessary to operate all pumps in both vari-
able speed and bypass to check for proper rotation.

4.9.2

Place the Technologic 5500 into operation as
described in previous sections.

4.9.3

Run each pump in auto and then in bypass (if so
equipped, see the next section) noting rotation in
each.

4.9.4

If both rotations (AFD and bypass) are wrong,
exchange the wiring on two motor phases.

4.9.5

If the rotation is incorrect in the AFD mode but it is
correct in the bypass mode, exchange the wiring on
two of the AFD output phases.

4.9.6

If the rotation is correct in the AFD mode but is in-
correct in the bypass mode, exchange the wiring on
two of the bypass input phases.

4.9.7

NOTE: Changing phase at AFD input does not
change output phasing.

DANGER: High voltage 3 phase power can kill.
Pumps can start automatically. Disconnect and lock-

out power prior to servicing pumps. FAILURE TO FOLLOW
THESE INSTRUCTIONS COULD RESULT IN SERIOUS
PERSONAL INJURY, DEATH, AND/OR PROPERTY
DAMAGE.