RITE-HITE APB-1000, Руководство пользователя

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12
Pub. No. 1120-R5 — June 2000
OVERHEAD DOOR INTERLOCK
AND SAFETY SWITCH (Optional)
The function of the overhead door interlock is to provide
protection for overhead doors working in conjunction
with hydraulic levelers. The door must be open before
the leveler can be operated, preventing overhead door
damage.
The design uses a limit switch mounted on the door
track. The switch is closed only when the door has been
opened, enabling the leveler RAISE button. If the switch
is open, no power will be available to the dock leveler
control box.
The interlock switch can be installed and wired to almost
any overhead door and hydraulic leveler, regardless of
manufacturer. See Figure 10 for details.
L1 L2 G
LS1
Pushbutton
Box
T1 (Black)
1L1 (Black)
T1 (Black) 1L2 (White) G (Ground)
PB1
“Raise”
Optional
O.H.D. ITL
Limit Switch
For Customer Main Power &
Safety Protection Device
120V 1 PH 60 Hz, 20 Amp Rated Circuit.
(Fused Disconnect Supplied By Others)
(20 Amp Dual Element Fuse)
Source
Use Minimum #12 Gage, 60
°
/ 75
°
Copper
Wire/100 Ft. Of Run – 20 Amp Circuit 120V
1/2
1
1-5/8
2
2
9
(2) 1/4
Dia.
#8244 OHD Kit
#55755 Limit Switch
SPST Limit Switch
W Omnidirectional Wire Wand
Wired Normally Open
(1HP Rated, 20 Amp)
A
A
Top Of Door
(See Detail B-B)
Mounting Bracket Detail Section A - A
Adjust Limit Switch
And Mtg. Bracket
As Required To
Activate Switch With
Dimensions Shown.
(Note: Other Angle Or Plate
Actuators May Be Attached
To Door To Activate Switch
As Required).
FIGURE 10 — INTERLOCK SWITCH INSTALLATION
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