Electric Company Water Heater User Manual

Installation & Operation 2-5MN1800
LMBL Series Continued
Brushless Linear Iron Core Servo Motor Continued
Multiple Coil Assembly Operation
In addition to maintaining an air gap, multiple coil assemblies must also maintain a
spacing factor of 1.8″. In other words, the space between coil assemblies may vary,
however, the distance from the front end of the first coil assembly to the front end of the
next must be a multiple of 1.8″. See Figure 2-2.
Ensure that this spacing is established at the time of installation.
Figure 2-2 Multiple Coil Assemblies
n = 1, 2, 3 , . . .
Rail
Coil Assembly Cable
Magnet
Assembly
n (1.8″)
Base
Operation Considerations The motor must always be operated within the specified operating parameter limits.
Exceeding those limits will permanently damage the motor Refer to the motor
specifications for operating parameter limits.
The motor must never touch the magnets during operation. Refer to “Adjust Air Gap”.
Remove the shim that sets the air gap between the motor and the magnets prior to
operation.
Note: Be aware that the total bearing load includes the magnetic attractive force.
The following steps must be completed to ensure safe and proper operation.
1. Verify that all electrical wiring and cables are properly connected. Refer to the
manual provided with the control for this information.
2. Adjust the control continuous current limit to match the motor’s continuous
current specifications.
3. Adjust the servo drive current to match the motor’s current specification.
4. Refer to the motor specifications for operating parameters. Adjust the control
parameters as necessary to the motor data specifications.
5. Adjust the control for the proper P.I.D. loop tuning. Begin at a low gain setting
and increase the gain as necessary.
6. Strain relieve the wires prior to operating.
AY1763A00 Leadwire Connection
Motor Cable Hall Cable Limit Cable
Wire Color
Signal Name
LinDrive Trap
Signal Name Wire Color Signal Name Wire Color
Motor Phase A (U) Red Black Hall 1 White Limit + Output White
Motor Phase B (V) White Red Hall 2 Red Limit – Output Red
Motor Phase C (W) Black White Hall 3 Black Home Output Black
Motor Ground Green Hall Ground Green Limit & Home PWR * Brown
Thermal Switch+ Blue Hall +5VDC Brown Limit & Home GND Green
Thermal Switch– Orange
* Limit & Home power is +4 to +24VDC.
Note: Motor phasing is for LinDrive or MintDrive. Other controls may require different phasing (such as most trap
drives (U) Black, (V) Red, (W) White). Phase angle between phases is 120 degrees.