Stanley MC521 User Manual

© 2005, THE STANLEY WORKS. ALL RIGHTS RESERVED. 204027
Rev. C, 11/9/05
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1.3.11 Closing Speed Adjustment: On Magic-Force operators, a dual-adjustment closing speed
control with two rheostats permits independent adjustment of door closing speed and
closing check speed. On Magic-Swing operators, provisions are provided for the
installation of an optional single-adjustment closing speed control.
1.3.12 Open Check Speed Adjustment:
Permits adjustment of door open check speed.
1.3.13 Torque Adjustment: Allows adjustment of the door opening force. Open torque, check
torque, and stall torque are independent adjustments.
1.3.14 Stall Logic:
Used with a door-mounted sensor system to stop door motion when a
pedestrian or object is present.
1.3.15 One-Piece Switch Module:
On Magic-Force operators, the individual breakout,
breakout status, close check, and auxiliary switches have been replaced with a single
one-piece switch module.
2. PRECAUTIONS
2.1.1 The Magic-Touch time delay must be greater than 5 seconds to ensure compliance with
ANSI A156.19, “American National Standard for Power Assist and Low Energy Power
Operated Doors,” specifications.
2.1.2 All ANSI/BHMA and UL Requirements in Attachment 7 must be met before the door is
put into operation.
3. WIRING INSTRUCTIONS
3.1 Evaluating Power Requirements
3.1.1 EVALUATE door system power requirements as follows:
• ENSURE power source is a dedicated 117 VAC, 50/60 Hz source with 20A
circuit rating per two controllers.
• ENSURE power source is not shared with other equipment, i.e., cash registers,
EAS systems, or other electromagnetic interference generators.
3.2 Connecting Main Power Wiring
WARNING
To prevent injury to personnel, incoming electrical power to header must be deenergized before
connecting control box electrical harness to electrical service.
3.2.1 DEENERGIZE incoming electrical power to header.
3.2.2 Refer to Attachments 2, 3, and 4, and, using the wire nut provided, CONNECT ground
wire assembly (P/N 711527) to electrical service ground wire.
3.2.3 In a concealed location inside the header (not visible from the exterior of the header),
DRILL a hole for a No. 8 screw.
3.2.4 INSTALL ground wire ring terminal and star washer onto the No. 8 screw provided,
and FASTEN screw, star washer, and ground wire to header.
3.2.5 In a concealed location inside the header, DRILL a second hole for a No. 8 screw.

Stanley MC521 Specifications

General

Brand	Stanley
Model	MC521
Category	Control Unit
Language	English