MultiTrode MultiSmart User Manual

MultiSmart Installation & Operation Manual
17.1.1 Configuring CT Values
Current transformers (CTs) wired into the Energy Monitoring and Motor Protection board (3MP) are used to
monitor motor currents. In order for the correct currents to be calculated, the ratio the CTs must be entered.
The default configuration is for a 50:5A CT for each current input.
Name Description
CT Primary
Enter the CT Primary current in Amps.
CT Secondary
Enter the CT Secondary current in Amps.
Note: 5A is the maximum CT Secondary current allowable.
Benchmark Efficiency
If required, enter the value which ongoing efficiency measurements will be
compared against. This value is displayed in the Efficiency screen (see Section
5.4.3.1). The default is -1.0 to indicate that nothing has been entered.
Full Load Current (Amps)
Sets the Full Load Current of the pump motor. This setting must be correctly
entered by the user for the threshold values to correctly work.
Table 22 – CT & FLC Parameters
17.1.2 Configuring Motor Protection Faults
Name Description
Amps Phase Imbalance
Detects a current imbalance between phases. The threshold value sets how
much imbalance is acceptable before a fault condition exists.
Amps Phase Rotation
Detects if the phase rotation is incorrect.
Ground (Earth) Fault
Detects a fault to ground. The threshold value sets what amount of phase to
ground current is required to be considered a fault.
Insulation Resistance
The energy monitoring and motor protection board has a built in insulation
tester. This parameter sets fault conditions. The threshold value sets the
insulation resistance level to raise a fault condition in Mohms. See Section
17.2
for more detail on configuring the insulation resistance tester itself.
Insulation Resistance Warning
This option if enabled will give a warning and will not fault the pumps by default.
However we can set this to fault the pump if required. The main use for this is to
generate a warning at the first threshold set for the test.
Low Power Factor
Detects a Low Power condition. The threshold value sets the level of low power
factor required before a fault condition exists.
Over Current
Detects an Over Current condition. The threshold value sets the level of over
current required before a fault condition exists.
Over Current I
2
T
Calculates the instantaneous I
2
T and faults the pump if the calculated value
goes above the threshold.
Pump Efficiency
This functions as a fault. If the calculated efficiency is larger than a preset
amount, a Pump Efficiency fault is displayed.
Under Current
Detects an Under Current condition. The threshold value sets the level of under
current required before a fault condition exists.
Table 23 – Motor Protection Faults
Most parameters use a % of Full Load Current (FLC) as the threshold. Ensure that the FLC is correctly setup
for each pump, and ensure that any motor protection threshold % is set, and the function is enabled.
On screen help is available for most parameters.
NOTE:
Motor Protection must be configured by the user. The defaults are designed to alert the panel builder,
or contractor commissioning the station to the fact that values for full load current must be entered.
Page 152 of 260 MultiSmart_IO_Manual_R20

MultiTrode MultiSmart Specifications

General

Brand	MultiTrode
Model	MultiSmart
Category	Controller
Language	English