Teikoku USA | Chempump
Instruction Manual HE-12270 (1219)
11
2.3.2 Optional Inverter Operation
If commercial power is directly applied, the heat generation will
increase and the motor may be damaged. Be sure to turn on the
power through the inverter.
Caution!
Do not operate this pump without a Pulse Width Mod-
ulated Variable Frequency Drive.
Optional parts such as AC/DC reactor and a line noise filter for
speed inverter is recommended.
For Type-F (Plan 1-SD) pressurized circulation ALP multi-stage
pumps purchased with the Teikoku Speed Guardian (TSG) VFD
and ALP Transfer Pump Controller, please see the TSG manual
(A-31365) supplied with the speed controller for more details of
operation. Please refer to
Appx. N
for the TSG layout drawing and
Appx. O
for the TSG wiring diagram.
Table 2-2
shows typical VFD parameter settings required to prop-
erly operate Teikoku’s high-speed motor. Please refer to the man-
ufacturer’s drive-specific user manual for setting additional user
parameters.
Table 2-2. Inverter Parameter Settings
Rated Motor Voltage
190V
380V
Rated Motor Current
42 Amps
21 Amps
Nominal (Base) Motor
Frequency
80Hz
80 Hz
Rated Motor Power
10.8 kW
10.8 kW
Acceleration Value
5 seconds or less 5 seconds or less
Deceleration
5 seconds or less 5 seconds or less
Upper Limited Frequency
120Hz
120Hz
Lower Limited Frequency
60Hz or Start Hz 60Hz or Start Hz
Starting Frequency
See note*
See note*
V/F Control
Variable Torque
Variable Torque
PWM
(Carrier)
Frequency
2kHz or More
2kHz or More
*Note:
Use system resistance curve (pressure vs. flow) and pump
performance curve (head/pressure vs. flow) to select a starting
frequency. Always lean toward a lower frequency if unsure of
what frequency to use (this will prevent overloading of the motor).
Once the pump is started, frequency can be increased to achieve
required flow. Verify flow within 10-20 seconds of operation,and
set drive to shut down if flow is not achieved (minimum output
power setting).
2.3.3 Optional Rotor Cavity Thermowell
Type-F (Plan 1-SD) pressurized circulation ALP multi-stage pumps
can be supplied with an optional rotor cavity thermowell for user
installation of an RTD or thermocouple to monitor rotor cavity
temperature to indicate a lack of circulation flow. Lack of cir-
culation flow is indicative of pump dry running conditions or a
clogged circulation pipeline.
If the pump supplied is equipped with a thermowell, please refer
to
Appx. K
for recommendations on the size and type of temper-
ature-indicating instrument to be installed in the thermowell.
Temperature setpoints for alarm or shutdown conditions may vary
from pump to pump depending on system operating tempera-
tures. Please contact Teikoku for specific setpoint recommenda-
tions.
