K Options / -29B Options - DART Controls 125D Manuel D'instructions

4) With power applied and a voltmeter monitoring motor output Vdc, apply 4mA to -5/-7 board. Check voltmeter reading and
adjust the Linearity/gain trimpot, R16, on the -5/-7 board CCW until motor output voltage is less than 0.1Vdc.
5) Now apply 20mA to the -5/-7 board and adjust the Max trimpot to a voltage that is 5 volts (15 volts for the 250G series
controls) above the final desired max motor voltage output. Adjust the Linearity/gain trimpot on the -5/-7 board CCW until the
motor output voltage decreases to the desired max voltage set point.
6) Now, apply 4mA to the -5/-7 board again and adjust the Min trimpot to deadband or the desired minimum motor voltage
output. The deadband point is where you are at 0Vdc and any further increase of the Min trimpot would result in an output to
the motor. Re-apply 20mA to the -5/-7 board and verify max output has not changed. A small adjustment may be needed to the
Max trimpot to reset to desired max output.
7) Adjust 4-20 input to 12mA. If tuned properly the output voltage of an unloaded motor should be within a few volts of ½ output
(based on max output setting above).
-7 option only: With 20mA applied to the -7 in Auto mode, move AUTO/MANUAL switch to MANUAL.
8) In manual mode turn the speedpot full CW, note motor voltage output reading on voltmeter. If not equal to output at 20mA in
Auto Mode, adjust the Balance trimpot on the -7 board (CW or CCW) until the same reading is achieved. The motor output Vdc
should not change more than 1 Vdc when flipping back and forth between AUTO and MANUAL position.
-15B / -K options
Acceleration Time Ranges
This option provides the Accel times shown below. The standard Accel time is 0.5 seconds.
ACCELERATION TIME
-29B option
Manual Forward-Off-Reverse Switch
Permits reversing of motor. This is accomplished using a 4PDT blocked center switch. When switched between the forward/reverse
positions, a delay is encountered due to the blocked center position, which protects the control from any voltage that may be at
the ARM terminals. The center position is OFF/NEUTRAL.
THE MOTOR MUST COME TO A COMPLETE STOP BEFORE CHANGING DIRECTIONS. IF THE MOTOR DOES NOT COME
TO A COMPLETE STOP, SERIOUS DAMAGE TO THE CONTROL MAY RESULT. BYPASS OF THE SWITCH CENTER BLOCK
MAY RESULT IN DAMAGE TO THE CONTROL.
-8
-7
-6
-5
-4
-3
-2
-1
P1
-15B OPTION
4 seconds
USE STANDARD HOOK-UP
ARM 2
ARM 1
4PDT SWITCH
AC
AC
-K OPTION
6 seconds
P1-4 P1-3 P1-2
ARM 1 ARM 2 AC
9
Factory Installed
Field Installed Only
P1-1
AC