FMI SCST-01 - Manual (Page 2)

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"SCST-01" STEP MOTOR
CONTROL KIT
OPERATION INSTRUCTIONS
IN-SCST-01-10 2
The SCST-01 is a self-contained step motor controller specifically designed for use with
Fluid Metering pumps. It contains its own step drivers and can be set to several run
modes utilizing either internal or external controls.
1.1 Features
• Pre-set Run Modes
• Multiple Control Methods: PLC, Relay, 0-5 VDC, or Manually by shunt
• Dispense,
Run
• Sensor Enable/Disable
• Switchable Forward/Reverse of Motor Direction
2.0 Run
Modes
The SCST-01 step motor controller can be used to drive any FMI stepper driven (STH,
STQ) pumps in any of the following modes.
2.1
Continuous (Constant Run) Mode
Your Kit comes factory set for 320 or 150 spm (strokes per minute). Speed is easily
adjustable using shunt connectors on Speed Header J3 (fig. 1) or DIP Switch Assembly.
Speed is adjustable using Pins (Switch) 1-7 and binary addition according to the
following chart and diagram or by 0-5 VDC input (Section 2.4).
Figure 1
Switch
/ Pin Speed
Dispense Pins/ Switches Speed or rpm Pins/ Switches
SPEED HEADER - J3 1 =
2 =
3 =
4 =
5 =
6 =
7 = 10 rpm
20 rpm
40 rpm
80 rpm
160 rpm
320 rpm
640 rpm
2.2 Dispense
Mode
The system will allow you to dispense from 1 to 7 shots per signal (momentary switch
closure on J2). The number of shots per signal is set by shunting pin/Switches sets 9-
11 on Header J3.
Pin/Switch No.= # of shots
Example