Burr King BK75 - Manual (Page 25)

Donaldson Company, Inc.
24
normally closed
auxiliary contact
at fan starter
L1 L2 4 X2
Note: The automatic shaker requires a
120-Volt power supply controlled by
the fan starter. The normally-closed
auxiliary contact is supplied by others.
Solid-State Timer Specifications
Sequence of Operation
Input power is supplied to Terminals L1 and
L2 of the automatic shaker control. On fan
shutdown the normally-closed auxiliary
contact closes and power is supplied to the
solid-state timer which activates the delay-
on-make timer. After 60-seconds, the delay-
on-make timer energizes the interval timer
and starts the shaker motor. After 30-sec,
the interval timer times out and the shaker
motor turns OFF.
Input: 105 to 135-Volt AC, 50-60 Hz
Output: 700 Watts maximum load
Shaker Motor Specifications
Input: 105 to 135-Volt AC, 50-60 Hz
Output: 2.6 amp maximum load
Rating: Intermittent load, 1-min/Hour
delay timer
D1 D2 D3
interval timer
T1 T2 T3
4FU
3 amp
110-Volt
Power Source
Neutral in
grounded
systems
blue red yellow black
shaker
motor
Electrical Control Box
Factory wired
Field wired
Series 50 to 80 Automatic Shaker without Transformer
Seriec 50 to 80 Automatic Shaker without Transformer Wiring Diagram
30-sec interval timer
gray wire
red wire
red wire
60-second
delay-on-make timer
fuse MDX 3 amp
red wire
fan starter
normally closed
auxiliary control
gray wire
110-Volt
Power
Source