The Turntide motor has a voltage tolerance of +/- 10% of nominal rated voltage.
For Example: this would mean a 460V rated motor can operate safely between 432V (-10%)
and 528V (+10%). If the motor operates outside of these parameters damage will occur. The Turntide Motor Controller LED’s will have a fast flash on GREEN and the RED staying ON to indicate a problem with the supply voltage.
The tables below give a quick reference of the acceptable low/high voltage limits for our motors in 460V, 230V and 208V applications.
PLEASE NOTE: ONLY QUALIFIED PERSONNEL SHOULD ATTEMPT TESTING LIVE ELECTRICAL EQUIPMENT. ALL STANDARD SAFETY PROCEDURES SHOULD BE FOLLOWED WHILE PERFORMING ANY AND ALL WORK TO LIVE EQUIPMENT.
To Test Voltage (Make sure your meter is set to AC voltage):
- Place one lead of your multimeter on the L1 phase, and the other on L2. You should see voltage within the ranges shown above depending on unit power supply.
- Next, place one lead of your multimeter on the L2 phase, and the other on L3. You should see voltage within the ranges shown above depending on unit power supply.
- Next, place one lead of your multimeter on the L1 phase, and the other on L3. You should see voltage within the ranges shown above depending on unit power supply.
If you get readings well outside of expected results, consider the following items:
1. Check the voltage of each phase from line to ground.
a. You should see roughly 266V on each leg for 460V/60/3 supply voltage.
b. You should see roughly 130V on each leg for 230V/60/3 supply voltage.
c. You should see roughly 120V on each leg for 208V/60/3 supply voltage.
d. If you get extremely low voltage on any phase, there is likely a blown fuse for that phase.
2. To verify if a fuse is blown, first turn off power to the unit. Then use the continuity feature of the multimeter and test across the fuse.
a. If the multimeter beeps to indicate continuity, then the fuse isn’t blown.
b. If your meter doesn’t beep and reads infinite resistance, then your fuse is blown.
c. If the fuse is blown, replace the fuse and verify voltages are in range prior to turning on unit power.
If you’re still having voltage issues, please consult the local maintenance provider or electrician for the location. Any additional troubleshooting activity falls outside the expertise of the Turntide Support Center.