32
Calibration
5.
Set the speed adjust potentiometer or voltage input signal for
maximum forward speed.
6.
Slowly adjust the MOTOR CURR. LIMIT trimpot CW until
the armature current is 120% of motor rated current.
7.
Set the REGEN CURR. LIMIT trimpot to approximately the
same setting as the MOTOR CURR. LIMIT.
8.
Set the speed adjust potentiometer or voltage input signal for
zero speed
9.
Remove AC power.
10. Remove the stall from the motor.
ACCEL
The ACCEL setting determines the time the motor takes to ramp
to a higher speed. ACCEL is factory set for the fastest
acceleration time (full CCW).
To calibrate ACCEL:
1.
Set the speed adjust potentiometer or voltage input signal to
zero speed. The motor should run at minimum speed.
2.
Set the speed adjust potentiometer or voltage input signal to
maximum forward speed, and measure the time it takes the
motor to go from minimum to maximum speed.
3.
If the time measured in step 2 is not the desired acceleration
time, turn the ACCEL trimpot CW for a slower acceleration
time, or CCW for a faster acceleration time. Repeat steps 1
through 3 until the acceleration time is correct.
250-0246r2_readers.qxd 6/7/01 10:51 AM Page 32
Summary of Contents for NRG-2Q Series
Page 1: ...User s Manual NRG 2Q Series Two Quadrant Regenerative PWM Drives for DC Brush Motors...
Page 12: ...6 Regenerative Drives Figure 2 Two Quadrant Operation...
Page 19: ...13 Installation Also see Dynamic brake resistor sizing page 23 Figure 3 NRG 2Q Connections...
Page 31: ...25 Operation Figure 7 Dynamic Braking Circuit Connection...
Page 57: ...Notes...
Page 58: ...Notes...