Gebruiksaanwijzing /service van het product MAP450D van de fabrikant B&B Electronics
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808 134th Street SW, Suite 120 • Everett, WA 98204 • USA • 425/745-3229 Fax: 425/745-3429 • E-mail: maple@maple-systems.com • URL: www.maple-systems.
2 MAP450D 1010-0046A, REV 00 COPYRIGHT NOTICE This manual is a publication of Maple Systems, Inc., and is provided for use by its customers only. The contents of the manual are copyrighted by Maple Systems, Inc.
INSTALLATION MANUAL 3 1010-0046A, REV 00 Read Me First! Your new Maple Systems OIT comes from the factory configured with the default communication settings: 9600 baud, no parity, 8 data bits, 1 stop .
4 MAP450D 1010-0046A, REV 00 TABLE OF CONTENTS 1. Control Panel Design Guidelines ...................................5 1.1. Control Panel Grounding ....................................5 1.2. Power Supply Selection .....................................
1. Control Panel Design Guidelines Pay careful attention to the placement of system components and associated cable routing. These items can significantly enhance the performance and integrity of your control application.
• A power line filter installed at the AC input to the OIT power supply is highly recommended as a safeguard against conducted RF noise, which is often present on factory power lines. The wires connecting the output of the power line filter to the power supply should be kept as short as possible to minimize any additional noise pickup.
2. Connecting the MAP450D to a Host Controller It is necessary to follow all installation procedures described in this chapter for electrical noise immunity and CE compliance. STEPS 1. Remove the four screws from the back of the OIT enclosure and open the two halves.
6. Connect the OIT operating cable wires to the terminal block. Refer to sections 2.1 through 2.3 and Figure 4. 7. Pull out any slack from the OIT operating cable. 8. Rotate the rear of the OIT enclosure back into position while gently pulling out the new slack generated in the cable as you proceed.
2.1. RS-232 (Interactive & Block modes) Interactive and Block modes support the 3-wire RS-232 configuration with TXD, RXD and signal common. The cable requires an overall shield to protect against electrical noise. Xon and Xoff can be used for communication handshaking.
2.3. RS-422/485 (Network mode) Network mode supports the 3-wire and 5-wire RS-422/485 configurations. The 3-wire configuration has both transmit and receive on the same pair of wires plus a signal common. The 5-wire configuration has differential signal pairs for transmit and receive plus a signal common.
There are several different forms of communications networks. Maple Systems’ OITs utilize the multidrop format. The host controller, located at one of the network ends, is connected to the OITs via a continuous com-link. Each OIT is connected to the network by locally tapping into the com-link with short stub cables.
Network Termination The com-link cable must be properly terminated to reduce the amount of interference and noise pickup from the surrounding environment. This is accomplished by using a termination circuit at both ends of the network cable. The following figure shows a typical termination circuit.
The cable shield must not be used as the signal ground. It is tempting to try and reduce the cost of 5-wire cabling by using a 4-wire cable with the shield used as the signal ground. DON’T DO IT. The initial cost savings are always exceeded by the maintenance costs once the system is operating under field conditions.
3. Mounting the MAP450D 3.1. Panel Mount The OIT is installed in a panel by separating the front and rear covers of the OIT, and then sandwiching the panel between the two. The gasketed surface of the OIT’s front cover provides the environmental seal to NEMA 4 and NEMA 12 standards.
IMPORTANT: When panel mounting the MAP450D, do not catch the display connector on the panel cutout. The display is exposed while panel mounting and extra care should be taken. The display can be damaged if the display cable connector, which protrudes from the panel cutout, is touching the panel when tightened.
The OIT is connected to the mounting plate with four #6-32UNC screws. The length of the mounting screws is equal to the plate thickness plus 1/4 inch. NOTE: The mounting screws must not be torqued to more than 18 pound-inches. Over-torquing can strip the threads in the enclosure.
4. Configuring the MAP450D The MAP450D has many operating parameters that control how it communicates to the host controller. These operating parameters can be changed in three ways: from the MAP450D.
Appendix A OIT Hardware Specifications Mechanical Material: Cast aluminum enclosure sealed to NEMA 4/12 Mounting: Panel, pedestal, pendant, or benchtop Wiring: Unit is field-wired by user to internal terminal block pins Weight: 2 pounds (0.
Appendix A (con’t) Dimensional Outline INSTALLATION MANUAL 19 1010-0046A, REV 00 5.75 [146] Dimensions are in inches [ mm ] . 5.00 [127] 0.90 [23] depth behind the front of a panel 8.12 [206] 6-32UNC x 0.50 [12.7] screw , 4 places SS, 6-32UNC x 0.30 [7.
Appendix B Differences Between MAP450D and MAP450B The MAP450D uses the same enclosure, display, keyboard and overlay as the MAP450B, but includes the following differences: 1. The MAP450D can be configured using the Windows-based STEPware-100 configuration software.
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