Install A 1734-Tops Base; Remove A 1734-Tops Base; Section 2.5 Field Wiring Connections - Spectrum Controls 1734 User Manual

Section 2.5
Field Wiring
Connections
6. Use a small-bladed screwdriver to rotate the orange base locking screw
to a vertical position.
This releases the locking mechanism.
7. Lift straight up to remove.

2.4.6 Install a 1734-TOPS Base

1. Position the base vertically above the installed units, such as an adapter,
power supply, or existing module.
2. Slide the base down, allowing the interlocking side pieces to engage the
adjacent installed unit.
3. Press firmly to seat the base on the DIN rail until the base snaps into
place.
4. Verify that the DIN-rail locking screw is in a horizontal, locked position
before inserting an I/O module.

2.4.7 Remove a 1734-TOPS Base

To remove a wiring base from the DIN rail, you must remove the module
installed to the right of the base:
1. Squeeze the module locking mechanism of the module to the right of the
base, pulling up to remove the module.
2. Turn the orange locking screw to a vertical position to unlock the base
from the DIN rail.
3. Slide the base up to release it from its mating units.
Consider the following when wiring your system:
General
•
Power and input wiring must be in accordance with Class 1, Division 2
wiring methods, Article 501-4(b) of the National Electric Code, NFPA
70, and in accordance with the authority having jurisdiction.
•
Use Belden™ 8761, or equivalent, shielded wire.
•
To ensure optimum accuracy, limit overall cable impedance by keeping a
cable as short as possible. Locate the module as close to input devices as
the application permits.
•
Digital and analog power must be supplied by an Isolated Secondary
Limited Energy Low Voltage source.
Chapter 2: Installation and Wiring
User's Manual Pub. 0300266-02 Rev. B
2-7