MA7200 PLUS Operating Manual
TECO – Westinghouse Motor Company App-2 Fan and Pump
P3-16 Low Suction Restart Selection, determines the action while the inverter restarts as per the following
Table 1.7.4.
Table 1.7.4 Low Suction Restart Selection
P3-16
Action during Restart
Description
Speed Search
DC-injection
braking
0 Valid
Invalid
This setting is used when the restart delay time is
short and the motor is still running because of
inertia.
1 Invalid
Depends on the
setting of Cn-17
This setting is used when the restart delay time is
long enough to stop the motor before restart.
If low suction is detected and any of the Multi-Function Output Functions (Sn-30 -32) are set to 28 (Low
Suction), the corresponding terminal will be ON.
If P3-11Low Suction Action is set to =3 (Shut Down and Restart), the corresponding terminal will be OFF after
the inverter restarts.
1.8 Flow Meter Display
Table 1.8.1 below shows the parameters used for the flow meter display.
Table 1.8.1 Flow Meter Display
Parameter
No.
LCD Display
Setting Range
Factory Setting
Change During
Operation
Modbus
Address
P4-01
P4-01
Flow Meter Function
0: None
1: Aux Input
2: Pulse Train Input
0 NO
0x0880
P4-02
P4-02
Max Flow for 10V
AUX
00000 – 50000 GPM
01000 GPM
NO
0x0881
P4-03
P4-03
No Flow point for AUX
0.0 - 5.0V
0.0V
NO
0x0882
P4-04
P4-04
Pulse Multiplier
000.01 – 500.00
100.00
NO
0x0883
P4-05
P4-05
Flow Meter Offset
0.00 - 0.99
0.00
YES
0x0884
Un-41
Un-41
Flow Meter
0 - 50000 GPM ----
---- 0x0047
P4-01Flow Meter Selection, is used to enable or disable the flow meter function and to select one of two the
inputs for this function as follows.
1.
Terminal Aux: 0-10V or 4-20mA signal.
(Note – If using a 4-20 mA input signal, place a 500
Ω
resistor
from the AUX input terminal to GND).
2. Terminal A(+) / A(-): Pulse Train Input with open-collector or complementary interface.
The pulse input frequency range is 50Hz - 32kHz.
The following Table 1.8.2 shows the P4-01 function and the parameters used with selection 1 or 2.
Table 1.8.2 P4-01 Selection
P4-01
Flow Meter
Function
Flow Meter
Signal
Flow Meter Parameters
0 Disabled ----
----
1
Enabled
AUX Input
P4-02, P4-03 (P4-04, P4-05 is fixed)
2
Enabled
Pulse Train Input
P4-04, P4-05 (P4-02, P4-03 is fixed)
Cont.