RediStart MX
2
- SEP Synchronous Controller User Manual
90
Timeline
7.1.2 Brushless Type Synchronous Motor Operation
The brushless type synchronous motor will start as an induction motor. All of the field controls are installed on
the rotor of the motor. The external motor controller just has to provide the DC field current for the auxiliary
generator at the appropriate time.
Synchronizing Conditions:
The following conditions must be true before the controller will apply the DC field to a brush type motor:
• A start command must be given.
• The Field Application Delay Timer (QST 02 / P3) must expire.
• The digital input(s) programmed as “Field Apply” must be energized.
• If the Field Application Delay Timer is turned “OFF” and there is a digital input programmed for “Field
Apply” then the field will be applied when the input is energized.
• If the Field Application Delay Timer is turned “OFF” and there is no digital input programmed then the
field will be applied as soon as the run command is received.
See Also • Slip Percentage (CFN 01 / P2) on Page 63.
• Field Application Delay Timer (QST 02 / P3) on Page 60.
• Digital Inputs (I/O 01–03 / P40–42) on Page 75.
Timeline
7.1.3 Current Follower
The Current Follower is used to provide a regulated DC current. This controller can be used any place that a
regulated DC current is required.
When the controller is used in Current Follower mode it will provide the DC current when a start is provided.
There are no other conditions that have to be met before the DC is provided.
ACTIONS PARAMETERS
Command
Sync Speed
Reached
DC applied
(if no digital input)
DC applied
(if Field Apply
Digital Input)
Slip<Set-point
(CFN01 / P2)
Field Apply Delay
(QST02 / P3)
Field Apply Input
(Digital Input)
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