Hired-Hand RS-400 Door - Manual (Page 18)

Part No. 4801-5170 Rev 5/08 RS 400 Door Page 18 of 26
1. Open the cover of the electrical enclosure.
2. Manually raise the door to a nearly opened
position using the Manaras manual chain.
(Refer to Section 6.3, Manual Operation
of Door with Manaras Operator )
3. Pull the traveling cam retaining bracket on
the Open Position cam side and rotate the
Open Position cam. Refer to Figure
‘Adjusting the Limit Cams’ in this
section.)
Note: Turning the cam towards the center of
the shaft increases door travel. Turning the
cam towards the switch decreases door
travel.
4. Manually rotate the Open Position cam until
the lever activates the Open limit switch
sufficiently so as to hear the switch click.
5. Release and engage the retaining bracket.
Make sure that the bracket engages in the
slots of both limit cams after each
adjustment.
6. Manually lower the door to a nearly closed
position and repeat steps 3 through 5 with
the Close Position cam.
7. Upon completion of all wiring connections
(Section 5.6.6.9), repeat steps 2 through 6
of Section 5.6.6.5 using the "Stop" button
for adjustments of limit switches to their
final, exact positions.
5.6.5.6 Minimum Suggested Wire Size for Control Circuit
The control circuit operates at 24 VAC. Due to the resistance in the wire used to carry the control circuit
voltage, it is important to use the appropriate wire size with respect to the distance between the operator and the
push-button station.
Below is a chart, “24 VAC CONTROL WIRING”, indicating the minimum recommended wire size with
respect to the total distance between the operator and the push-button station. DO NOT exceed the
maximum distance. If there are several push-button stations in series you must ADD all these distances
before selecting the appropriate wire gauge for your operator.
If the wire gauge is not suitable for the distance,
problems in operation will be encountered such as
chattering relays and contactor, premature wear of
the contacts and possible tripping of the motor's
thermal protection. If a greater distance is required, a
long distance interface module is suggested (consult
the manufacturer).
When large gauge wire is used, a separate junction
box will be needed for operator power connection.
All power wiring to the operator should be installed
by a qualified electrician and may vary with respect
to conduit size and type as specified in the National
Electrical Code, Article 430, allowing 5% voltage
drop. Power must also be connected in accordance
with local codes.
Adjusting the Limit Cams
Pull the travelling cam retaining bracket
on desired side to adjust cam position.
24 VAC CONTROL WIRING
Minimum
suggested
Wire gauge
(AWG)
Maximum distance
between operator and all
Push-button stations
feet (meters)
22 50 (15)
20 100 (30)
18 150 (45)
16 250 (75)
14 350 (105)
12 450 (135)