Micromod MOD: 1750N Output holder for MOD 30ML - Manual (Page 13)

Output Holder Instructions
POWER, GROUNDING, AND I/O CONNECTIONS
SECTION 3
POWER, GROUNDING, AND I/O CONNECTIONS
3.1 OVERVIEW
Read this section thoroughly before making any connections. Installation personnel should
be qualified technicians. Observe all electrical code requirements and safety standards
applicable to these wiring procedures.
Specific instructions and connection diagrams for the various built-in inputs and outputs are
provided in the following sections. A listing of the applicable electrical specifications is
included in each section.
3.2 CONNECTION GUIDELINES
The wiring connections described in this section are made with the output holder installed in
its operating location and with the power off.
1. The power wire size must be from 14 AWG (1.6 mm) to 18 AWG (1.0 mm) with a 600V, -
20 °C +105°C UL, CSA approved rating.
2. The signal wire size can be as small as 22 AWG (0.65 mm). All analog input wiring must
be shielded twisted pairs.
3.3 WIRING AND CONNECTIONS
The following figure provides a generic reference as to the signal paths between the
controller and the 1750N Output Holder.
Controller
1750N
Output Holder
Process Input Controller Output
4-20 mA
4-20 mA to Process
1-5 mA monitor to Controller
OH Sense to Controller
Controller Controller
1750N
Output Holder
1750N
Output Holder
Process Input Controller Output
4-20 mA
4-20 mA to Process
1-5 mA monitor to Controller
OH Sense to Controller
Figure 3 .1. Catalog Number
The 1-5 mA monitor to Controller and the OH Sense to Controller connections in the above
scheme are optional. For these connections, two additional inputs are required: The input
types are:
1. 1-5 mA monitor to controller (Return) – one non-two wire input (2002A)
2. OH Sense to the controller – one digital input (2006AZ)
The wiring diagram is shown in the next figure:
3 -1