PEWA EPM3, Руководство пользователя

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4
Open Phase Test
XW
Caution
The multimeter used for this test should be properly rated for the
circuit under test.
1. Connect a multimeter (set to VAC and the voltage range expected) V input to
the phase wire in question and the COM input to neutral or ground to check the
phase voltage. Use extreme caution in this high voltage situation.
2. Verify that the two other phases are working properly and that the 3-phase to
phase voltages are correct. If a problem is found, correct the problem before
returning to the 3-phase rotation test.
Motor Rotation Test
This test can be used to verify the shaft rotation and the M1-M2-M3 connections or
to determine the M1-M2-M3 connections on a motor that is not marked.
XW
Warning
Make all connections with circuits unpowered. If the clockwise or
counterclockwise RED indicator is ON before rotating the motor
shaft, voltage is present. Stop measuring. Remove the test leads
and turn off the external power.
1. Use a multimeter to verify that no voltage is present on the motor windings.
2. Connect the color coded test leads to the three motor input terminals M1- M2-
M3. Press the power button (See Figure 2). The green indicator light will be ON.
3. Facing the motor shaft, hand rotate the motor shaft clockwise.
4. If the clockwise indicator (
w
) is ON, the M1-M2-M3 connections are correct
for clockwise rotation.
5. If the counterclockwise ( x ) indicator is ON, the M1-M2-M3 connections are
correct for counterclockwise rotation.
6. If the motor rotation direction is wrong, reverse any two of the M1-M2-M3
connections and repeat the test.
After 3-phase rotation and motor phasing are verified:
1.
Turn off power at the source.
2. Connect the previously identified power wire L1 to motor wire M1. Repeat the
connections for L2 to M2 and L3 to M3. See Figure 3.
3. Inspect the connections for electrical safety.
The motor will rotate in the desired direction when power is applied.