Granville-Phillips Mini-Convectron 275 Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 18 / 52

10 Mini-Convectron
®
Module with DeviceNet
®
Digital Interface
Chapter 3
3.5 Front Panel
Digital Display The 7-segment digital display on the side of the 275 Mini-Convectron
Module provides a viewable pressure reading. Pressure can be displayed in
Torr or mTorr. The two LEDs next to the display indicate whether the
pressure reading is in Torr or mTorr. The lowest pressure resolution for the
display is 1 mTorr. A reading of -0 indicates a below zero reading which has
the same meaning as bit 3 of the Status Attribute in the S-Analog Sensor
Object.
Relay ON LEDs The Relay ON LEDs are illuminated when either the Trip Point 1 (S.P.1) or
Trip Point 2 (S.P.2)control relays are energized.
3.6 Side Panel
Process Control
Connector The Process Control Connector provides a connection to the 275 Mini-
Convectron Vacuum Gauge Module trip point relay contacts. Refer to
Figure 3-3 for pin assignments.
Figure 3-3 Process Control Connector Pin Assignments
Communications
Connector The Communications Connector provides a connection to the 275 Mini-
Convectron Vacuum Gauge Module for 24 VDC Input power and the
DeviceNet network. Refer to Figure 3-4 for pin assignments.
Figure 3-4 Communications Connector Pin Assignment
PIN 2 - TRIP POINT 2 COMMON
PIN 3 - TRIP POINT 2 - N.C.
PIN 4 - DO NOT USE
PIN 9 - DO NOT USE
PIN 8 - DO NOT USE
PIN 7 - TRIP POINT 1 - N.O.
PIN 6 - TRIP POINT 1 - N.C.
PIN 5 - TRIP POINT 1 COMMON
PIN 1 - TRIP POINT 2 - N.O.
MALE PINS
N.O. = NORMALLY OPEN N.C. = NORMALLY CLOSED
3 - (-) GROUND
5 - CAN_L
2 - (+) 24 VDC
4 - CAN_H
1 - SHIELD