Honeywell UDC2800 User Manual

Table 3-3: Alarm Relay Contact Information
Unit
power
Alarm relay
Wiring
Variable NOT in Alarm
State
Variable in Alarm State
Relay
Contact
Indicators
Relay
COntact
Indicators
Off N.O. Open Off Open Off
N.C. Closed Closed
On N.O. Closed Off Open On
N.C. Open Closed
Mounting
Physical Considerations
The controller can be mounted on either a vertical or tilted panel
using the mounting kit supplied. Adequate access space must be
available at the back of the panel for installation and servicing
activities.
n
The controller must be installed indoors.
n
It must be panel mounted with the wiring terminals enclosed
within the panel.
n
The instrument is environmentally hardened and, when suitably
enclosed, can be mounted anywhere in plant or factory, on the
wall, or even on the process machine itself.
n
The front panel is moisture rated NEMA3R and IP54 rated and
can be easily upgraded to NEMA4X and IP66 for the most severe
hose-down applications. See Mounting Method and Mounting
Procedure for more information.
n
It withstands ambient temperatures 0 ~ 55 C (32 ~ 131 F) and
resists the effects of vibration and shock.
n
Overall dimensions and panel cutout requirements for mounting
the controller are shown in figure below. See Overall Dimensions
for more information.
n
The controller’s mounting enclosure must be grounded according
to CSA standard C22.2 No. 0.4 or Factory Mutual Class No. 3820
paragraph 6.1.5.
45
Chapter 3 - Installation

Honeywell UDC2800 Specifications

General

Control Modes	PID, ON/OFF, Manual
Mounting	Panel Mount
Display	Dual 4-digit LED
Input Types	Thermocouple, RTD, mA, mV, V
Output Types	Relay
Power Supply	100-240 VAC, 50/60 Hz
Communication	RS-485 Modbus RTU
Enclosure Rating	NEMA 4X