Installation
8
UDC2300 Controller Product Manual
12/00
2.4 Control and Alarm Relay Contact Information
Control Relays
ATTENTION
Control relays operate in the standard control mode (that is, energized when output state is on).
Table 2-3 Control Relay Contact Information
Unit Power
Control Relay
Wiring
Control Relay
Contact
#1 or #2 Output
Indicator Status
N.O.
Open
Off
N.C.
Closed
Off
N.O.
Open
Closed
Off
On
On
N.C.
Closed
Open
Off
On
Alarm Relays
ATTENTION
Alarm relays are designed to operate in a failsafe mode (that is, de-energized during alarm sate).
This results in alarm actuation when power is OFF or when initially applied, until the unit
completes self diagnostics. If power is lost to the unit, the alarms will function.
Table 2-4 Alarm Relay Contact Information
Variable NOT in Alarm State
Variable in Alarm State
Unit
Power
Alarm Relay
Wiring
Relay
Contact
Indicators
Relay
Contact
Indicators
N.O.
Open
Open
Off
N.C.
Closed
Off
Closed
Off
N.O.
Closed
Open
On
N.C.
Open
Off
Closed
On
Содержание UDC 2300
Страница 1: ...UDC2300 Universal Digital Controller Product Manual 51 52 25 98 12 00 ...
Страница 30: ...Installation 20 UDC2300 Controller Product Manual 12 00 ...
Страница 62: ...Monitoring 52 UDC2300 Controller Product Manual 12 00 ...
Страница 80: ...Operation 70 UDC2300 Controller Product Manual 12 00 ...
Страница 92: ...Setpoint Rate Ramp Program Operation 82 UDC2300 Controller Product Manual 12 00 ...
Страница 124: ...Troubleshooting Service 114 UDC2300 Controller Product Manual 12 00 ...
Страница 170: ...Function Parameter Reference Guide 160 UDC2300 Controller Product Manual 12 00 ...
Страница 176: ...Index 166 UDC2300 Controller Product Manual 12 00 ...
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