kb-electronics kbmg 사용자 설명서
D. IR Compensation (IR Comp) – The IR Comp is used to stabilize motor speed
under varying loads. Readjust the IR Comp trimpot as follows:
i. Initially set trimpot to factory position (approximately 10 o’clock).
ii. Run motor at approximately 30 – 50% of rated speed under no load and
measure actual speed.
iii. Load motor to rated current. Rotate IR Comp trimpot so that loaded speed is the
same as the unloaded speed measured in the previous step.
Control is now compensated so that minimal speed change will occur over a
wide range of motor load. Note: Excessive IR Comp will cause unstable
(oscillatory) operation.
wide range of motor load. Note: Excessive IR Comp will cause unstable
(oscillatory) operation.
E.
Maximum Speed (MAX) – The MAX trimpot is used to set the maximum output
voltage of the control which, in turn, sets the maximum speed of the motor.
voltage of the control which, in turn, sets the maximum speed of the motor.
Adjust the MAX trimpot as follows:
i. Rotate Main Speed potentiometer to full speed (CW).
ii. Adjust MAX trimpot to desired maximum motor speed.
Note: Do not exceed maximum rated RPM of motor since unstable operation
may result.
may result.
F.
Response Trimpot (RESP) – This trimpot determines the dynamic response of the
control. The factory setting is approximately 50% of full rotation. The setting may
be increased if a faster response is required. Note: If response is set too fast,
unstable operation may result.
control. The factory setting is approximately 50% of full rotation. The setting may
be increased if a faster response is required. Note: If response is set too fast,
unstable operation may result.
29
VIII. FUNCTION INDICATOR LAMPS.
A. Power On (PWR ON) – Indicates that the drive is energized with the AC line.
B. Overload (OL) – Indicates the control has reached the current limit set point which
has been established by the position of jumper J2 and the FWD CL and REV CL
trimpot settings. In transient load applications, it is normal for this light to blink.
trimpot settings. In transient load applications, it is normal for this light to blink.
IX. KBMG-212D ACCESSORIES
•
Model SIMG Bipolar Signal Isolator (P/N 8832) – Allows a non-isolated signal
source to be used.
source to be used.
•
Multi Speed Board (P/N 8833) – Provides discrete preset speeds which can be
controlled from a PLC.
controlled from a PLC.
•
4-Quadrant Accel/Decel (P/N 8834) – Provides independent settings of forward
accel, forward decel, reverse accel and reverse decel.
accel, forward decel, reverse accel and reverse decel.
•
DIN Rail Mounting Kit (P/N 9995) – Converts control to standard DIN Rail
Mounting.
Mounting.
30