Graham 176B1111, Инструкция по эксплуатации

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23
CURRENT (TORQUE) LIMIT ADJUST (CL)
(Clockwise Increases Current)
There are two methods for adjusting CL.
METHOD 1:
1 . Start the machine and run at desired speed, then apply
maximum load to the motor and turn CL trimpot fully
clockwise.
2 . Turn CL trimpot counterclockwise until the CL . (yellow) LED
lights and the machine starts to slow down.
3 . Turn the CL trimpot clockwise until the CL (yellow) LED just
turns off.
METHOD 2:
1 . Turn off AC power.
2 . Lock up the motor shaft, taking care not to cause damage.
3 . Connect a DC ammeter in series with the motor armature.
4 . Turn CL trimpot fully counterclockwise.
5 . Turn external speed pot fully counterclockwise.
6 . Turn on AC power and start control (CL (yellow) LED should
be on).
7 . Turn speed pot clockwise to about 1/3 speed setting.
8 . Adjust CL trimpot clockwise for desired motor current. (Do
not set for current greater than either the motor or control
nameplate rating).
9 . Turn off AC power, disconnect ammeter, and unlock motor
shaft. CL may be adjusted from O-150% of control rating.
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