Hardware Features - Spectrum Controls 1769 User Manual

User's Manual Pub. 0300241-01 Rev. A

1.1.4 Hardware Features

The Isolated RTD/resistance module contains a removable terminal block (spare part
number 1769-RTBN18) providing connections for six 3-wire inputs for any combination
of RTD and resistance input devices. Channels are wired as differential inputs. The
illustration below shows the hardware features of the module.
The illustration below shows the module's hardware features.
Item Description
1 Bus lever
2a Upper panel mounting tab
2b Lower panel mounting tab
3 Module status LED
4 Module door with terminal identification label
5a Movable bus connector (bus interface) with female pins
5b Stationary bus connector (bus interface) with male pins
6 Nameplate label
7a Upper tongue-and-groove slots
7b Lower tongue-and-groove slots
8a Upper DIN rail latch
8b Lower DIN rail latch
9 Write-on label for user identification tags
10 Removable terminal block (RTB) with finger-safe cover
10a RTB upper retaining screw
10b RTB lower retaining screw
11 CJC sensors
Module configuration is normally done via the controller's programming software. In
addition, some controllers support configuration via the user program. In either case, the
module configuration is stored in the memory of the controller. Refer to your controller's
user manual for more information.
Chapter 1: Module Overview 1-3