AutomationDirect IRONHORSE GSD4 Series, Руководство пользователя

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Page 24 IronHorse GSD4A / GSD4 DC Drives User Manual – 2nd Ed. Rev. A – 10/14/2019
Trim Pot Adjustments
NOTE: A DC motor must be connected to the drive in order to make accurate trim pot adjustments.
If the system is unstable after the previous Start-Up procedure, then adjust the trim pots as described in
this section.
GSD4A-240-xC Trim Pot Adjustment
GSD4A-240-xC Trim Pot Adjustment
Trim Pot Function Adjustment
Min Sets minimum motor speed
when speed pot is set at zero.
CW rotation will increase
minimum motor speed.
1) Set Speed pot to zero (fully CCW).
2) Rotate MIN trim pot CW until motor starts to rotate.
3) Slowly rotate MIN trim pot CCW until motor stops.
NOTE: If motor rotation is desired, rotate MIN trim pot CW until desired MIN speed is
reached.
IR Comp Provides a means of
improving motor speed
regulation in the armature
feedback mode. If a constant
output voltage is desired,
or if some speed loss with
increased load is of no
concern, then rotate this
trimpot fully CCW.
1) Set Speed pot at 50%.
2) Observe motor speed at no load condition.
3) Apply full load to motor.
4) Turn IR COMP trim pot CW to obtain the same motor speed as with no load.
Max Sets maximum motor speed
when speedpot is set at
maximum (full CW rotation).
CW rotation of MAX trimpot
increases maximum motor
speed.
NOTE: MAX trimpot settings
that result in output voltage
greater than the motor rating
may result in unregulated
speeds at full load and
higher than normal motor
temperatures.
1) TURN DRIVE POWER OFF!!
2) Connect a DC Voltmeter: + to +ARM; - to -ARM. NOTE: Meter must not be grounded!
3) Set meter voltage range: (90 VDC for 120 VAC; 180 VDC for 240 VAC).
4) Turn power on. Set Speed pot at 100%.
5) Observe output voltage on meter and adjust the max trimpot until desired maximum
voltage is reached. A tachometer may be used in lieu of a voltmeter to set max output
speed. NOTE: Do not exceed motor ratings.
Cur Lim Limits DC motor armature
current (torque) to prevent
damage to the motor or
control. The current limit is
set for the rated motor current.
CW rotation of this trim pot
increases the armature current
(or torque produced).
1) TURN DRIVE POWER OFF!
2) Connect a DC Ammeter between A1 on motor and +ARM on drive. This is in series with
the motor.
3) Turn power on.
4) Set Speed pot at the 50% position.
5) Apply friction braking to motor shaft until motor stalls.
6) With motor output shaft locked safely in a stalled position, set current at 125% of rated
motor armature current by adjusting CUR. LIM. trim pot.
ACCEL Sets the amount of time it
takes the motor to go from
the minimum set speed to
the maximum set speed. The
range of this setting is 0.5
to 8 seconds. CW rotation
increases the Accel time. Full
CCW is 0.5 seconds.
1) Set Speedpot to zero (fully CCW).
2) Rotate Accel trimpot CW to desired setting based on 0.5-8 seconds
3) Set Speedpot to full CW and time the acceleration to full speed.
4) If a slower acceleration and longer time frame is need then rotate Accel trimpot CW.
DECEL Sets the amount of time it
takes the motor to go from
the maximum set speed to
the minimum set speed. The
range of this setting is 0.5
to 6 seconds. CW rotation
increases the Decel time. Full
CCW is 0.5 seconds.
1) Set Speedpot to full on (fully CW).
2) Rotate Decel trimpot CW to desired setting based on 0.5-6 second range.
3) Set Speedpot to full CCW and time the deceleration to zero speed.
4) If a slower deceleration and longer time frame is need then rotate Decel trimpot CW.