Rapid-Air DUAL SWIVEL REEL: 100 & 1000 SERIES User Manual

Page 13

1. AC line fuse is chosen according to the maximum rating of the control:
12 AMP fuse for all motors up to 3/4 HP-90V and 1 1/2 HP-180VDC.
25 AMP fuse for all motors 1 and 1/2 HP-90V and 2 and 3 HP-180VDC.
(Use Buss ABC, Littlefuse 326 ceramic fuse or equivalent.)

2. Armature Fuse can be chosen in accordance with the furs chart. Note: The arma-

ture fuse is calculated based on the approximate full load DC current rating for the
motor times a form factor of 1.5. If motor has characteristics not consistent with
these approximations, a different fuse value may have to be used. Fuses are avail-
able from your distributor.

TABLE 4. ARMATURE FUSE CHART

*Also used as AC line fuse

ADJUSTMENTS AND CONTROL FUNCTIONS
WARNING: If adjustments are made under power, insulated adjustment tools must be
used and eye protection must be worn.

The Ramm has been factory adjusted to provide 0-full speed using the speed control
knob. Minimum the Maximum speed trimpots are provided to change the speed from
other than 0-full speed. The Acceleration (ACCEL) trimpot is provided to allow for a
smooth start over an adjustable time period each time the AC power is applied or the
speed pot is rotated. The Decel trimpot controls the amount of ramp-down when the
speed pot is adjusted to a lower speed. The Current limit (CL, or torque output) adjust-
ment is factory set to approximately 1 1/2 times the motor rating. The IR Compensa-
tion (IR) is factory adjusted to provide excellent motor regulation under normal opera-
tion.
NOTE: In order for the IR comp and CL trimpot settings to be correct, the proper Plug-
in horsepower resistor must be installed for the particular motor and input voltage be-
ing used. Do not attempt to change the settings of the trimpots unless absolutely nec-
essary since they are factory adjusted to near optimum settings.

90 VDC 180 VDC
Motor Motor

Horsepower

1/4 1/2
1/2 1
3/4 1 1/2
1 2
1 1/2 3

APPROX.

DC Motor

Current

(Amps)

2.5
5.0
7.5
10.0
15

Fuse

Rating

(AC Amps)

4
8

12*

25*