MR-Conveyor-Maintenance-Guide.pdf - 第21页
EN - 0034 Rev. F MR Conveyor Maintenance G uide 21 3/12/2024 Integral Mot or Controller Introduction: Quickdraw ’ s brushless DC (BLDC) motor controller commutates power into a standard three phase brushless (BLDC) motor…
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Electrical Controls Maintenance
Measuring Current Draw
Procedure:
Warning: This procedure describes testing in an open, powered Control Panel.
Use caution.
1) In the Control Panel, open the Fuse Cover on the Fuse segment for that
specific Conveyor. Opening the cover removes the fuse from the circuit.
2) With power on, carefully place the ammeter’s Probes on the screw heads as
indicated in the diagram. The conveyor will “turn on”. Take a reading on the
meter.
3) If the reading is negative, reverse the probes.
4) The reading on a standard MR conveyor (unloaded - no product or pallet
resistance) should be less than or equal to 0.50 amps.
5) If the reading exceeds this, see the Trouble Shooting -High Current section of
this Manual (Page 29).
6) Remove the Ammeter and close the Fuse segment cover. Close the Control
Panel cover.
Note: Quickdraw Conveyors with a standard 10W Motor should draw no more than 0.50 amps unloaded.
Breakers
DIN Rail
Fuse Holders
Screw Heads
(Electrical Contacts)
Example of Breakers and Fuse Holders mounted on DIN
Rail inside a control Panel.
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Integral Motor Controller
Introduction:
Quickdraw’s brushless DC (BLDC) motor controller commutates power into a standard
three phase brushless (BLDC) motor up to a 10-watt motor. The BLDC controls (i.e.
speed, direction, enabling) can be set by using jumpers or by giving external signals to
connector P1.
Controller Dimension Diagram
6-32 tapped standoff on board
Connections: Power and Control Signals, Brushless Motors and Hall Sensors.
Brushless Motors:
Brushless DC motors have eight (8) wires; three (3) phase lines to the motor, three (3) Hall sensor
lines, and sensor power and common. Also BLDC motors come with two sensor configurations.
60, and 120 degrees and is connected to P2.
Quickdraw designed this controller to power Japan servo 3W and 10W motors, although other
motors can be driven with this controller.
Motor Sensor Spacing:
Quickdraw’s BLDC controller is shipped ready for 120-Degree sensor spacing. (Note: The Japan
Servomotors supplied on most Quickdraw conveyors use 120 Degree sensor spacing) However, if
60-degree spacing is desired, remove the jumper across J4.
Power Requirements:
The power is supplied to this card using Pin 1 and Pin 14 on connector P1. The 24V input signal
should be fused with a 1-amp slow blow fuse. The power should be off until the hookup procedure
is complete and you are ready to run.
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Integral Motor Controller, Cont’d
Motor Speed Control:
Quickdraw’s BLDC controller comes with two speed control options. The different control
options can be selected by changing the position of jumper J3 on the motor controller
board. When internal speed control is selected with the jumpers, the motor references the
multi turn pot (RSV1) on the controller board for speed. The speed can be increased or
decreased by turning the pot with a non-conducting screwdriver.
When the external speed control is selected, the speed pot is disabled and the motor gets
its speed reference from an external 2-5V signal. This signal should be reference to the
controller’s common.
Motor Controller speed control options.
J3 J3
Jumper
Jumper
External Internal
(Default Setting)