Aux And E-Aux Relay Digital - YSI MultiDO 5400 User Manual

Example - DO sensor menu is entered and the control high set point value is changed
while a control relay is energized. When
Screen, the DO control relay de-energizes regardless of sensor value. The control
relay re-energizes if, after the 30 second hold, the value is still in control range.
Reconfiguration of the following does not place the system in 30 second hold off:
- DO systems - display format, probe type, membrane type, ppt, elevation, temp
source, and temp display format;
- Temperature system - display format, chiller on time, chiller on time units,
chiller hold off time, chiller hold off time units , set points, enable/disable
control relays.
Notes:
- Configuration changes place only the system that has been reconfigured on
30 second hold.
- No "off " event log is created when energized system relays de-energize due
to 30 second sensor hold off.
- Control icons and control messages continue to display during the 30 second
sensor system hold at the Run Screen regardless if relays are energized.
Aux and E-Aux Hold Off (non temperature aux systems)
Aux and E-Aux Hold Off (user configured) is the length of time the control or
alarm condition must exist before the Aux relay energizes. Aux temperature, E-Aux
temperature and DO sensor systems do not have control hold off. These systems
controls operate as described at set point normal control values - page 154. Aux
temperature, E-Aux temperature and DO sensor alarm relays operate as described
at set point normal alarm values - page 156.
Note:
- To avoid control or alarm for spurious events , configure the Alarm Hold Off
> than 0.

Aux and E-Aux Relay Digital

Menus → Sensor Setup→Aux 1-6
→E-Aux 1-8
Configure digital control/alarm (open/closed), relay, alarms, and hold off in the Aux
1 - Aux 6 and E-Aux 1 - E-Aux 8 Sensor Setup Menu. E-Aux digital systems use an
IOEM digital input as the system input. Use digital input type for control, or alarm,
based on either a switch open or switch closed condition. Only one relay can be
configured in a digital system. Enabled relay will energize based on the condition
configured in the control/alarm on menu.
Configuring the 5X00
is pressed to return to the Run
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164
When enabled, Aux digital relay energizes when configured control/alarm on con-
dition occurs. Aux relay energizes after configured aux hold off time. When alarms
are disabled and as long as control/alarm on condition exists, the relay remains
energized including when menus are entered. Relay de-energizes when the non
control/alarm condition is processed by the 5X00 so long as alarms are disabled. If
alarms are enabled, the relay de-energizes when one of the four front panel softkeys
alarm system. The Alarm system becomes active again if, after the aux hold off
period, the alarm condition still exists.
Digital events (event log) are identified by aux/E-Aux number, input type (digital),
relay condition (on/off), and do not identify digital condition (open, or closed).
Aux digital events are not identified as control or alarm events regardless if alarms
are enabled.
E-Aux systems use an IOEM channel as the digital input source. See IOEM/REM
E-AUX
Safety and Installation guide for wiring and input channel configuration.
Configure Aux and E-Aux digital systems
Before configuring Aux and E-Aux analog systems 1) See - "Use AquaManager to
configure system inputs and outputs" - page "Use AquaManager to configure System
inputs and outputs" on page 150. AND 2) See Control modes [Set point Control
Mode and Alarms - page 153 and PID control mode - page 175.]
Please review - Use AquaManager to configure sensor systems - page 150.
E-AUX 1. Wire digital input at IOEM for E-Aux system - see IOEM/REM Safety
and Installation guide>Chapter 3>Step 5>Wire non temperature IOEM
inputs;
AND/OR
1. Wire Aux digital devices - page 56.
2. Wire relay output device to local instrument, or any networked 5X00
instrument - page 54 for local instrument.
AND/OR
2. Wire relay output device to REM - see IOEM/REM Safety and Instal-
lation guide>Chapter 3>Step 4>Wire REM Relay Outputs. Wire any
output devices to be used for system.
Configuring the 5X00
is pressed. Pressing one of four softkeys resets the
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165