98
Off Mode Output
This menu only appears for analog output Lead outputs.Enter the output mA value de-
sired for each output in the group when the output is in Off mode, or being Interlocked,
or during a calibration of the sensor being used as an input. The acceptable range is 0 to
21 mA.
Error Output
This menu only appears for analog output Lead outputs.Enter the output mA desired for
each output in the group when the sensor is not giving the controller a valid signal. The
acceptable range is 0 to 21 mA.
The
Activate With Channels
setting, normally available for all outputs, is
not
propagated through the Lead Lag
group. This field can be entered independently for each Lag Output when the control mode of the Lead output is
Manual and the activation mode is Switch Based.
Most other settings for the various types of Lead control modes are managed independently from other outputs
within a Lead Lag group. In most cases, no
Activation Mode
settings are available, so the Lead output determines
the status for the entire group based on its settings and the current controller parameters. However, when an
Activation Mode is enabled, the handling of some settings may require some additional explanation. For example,
•
Duty Cycle - If a Lead output with a control mode of On/Off or Dual Setpoint has a Duty Cycle setting of less
that 100%, this cycle will be managed for the Lead output only. The Duty Cycle will drive other Lag
• outputs for Backup or Wear Leveling purposes. However, if additional Lag Output(s) are energized due to
• Setpoint-Based or Time-Based Activation Mode settings, the additional outputs will operate independently of
the Duty Cycle setting. The Lead output will continue to cycle On and Off, however, the additional outputs
•
will remain activated with 100% duty cycle until the setpoint deadband is satisfied.
•
On Delay / Off Delay - If the Lead output with a control mode of On/Off, Dual Setpoint, or Manual has ei
-
ther an On or Off Delay Time setting specified, the delay will be managed for the Lead output only. If one or
more Lag outputs provide Backup or Wear Leveling support, the Delay Times would also effect these outputs.
However, if additional Lag Output(s) are energized due to Activation Mode settings, the additional outputs will
operate independently of the On or Off Delay Time setting(s) and will energize and de-energize without delay
when needed.
5.3.27
Relay or Control Outputs, Flow Meter Ratio Control Mode
ONLY AVAILABLE IF HVAC MODES ARE ENABLED IN CONFIG MENU – GLOBAL SETTINGS
Flow Meter Ratio Control Mode is typically used in cooling water applications to control the conductivity of
the water using volumetric cycles of concentration. The controller measures the volume of makeup water going
through one or two water meters, and after a programmable amount, activates the relay to control a programmable
volume out through one or two bleed water meters.
Output Details
The details for this type of output include the relay on/off state, HOA mode or Interlock status, Accumulated
makeup water total, bleed cycle volume, remaining volume, relay on-time for this cycle, accumulated on-time,
alarms related to this output, relay type, and the current control mode setting.
Settings
Touch the Edit icon to view or change the settings related to the output.
Accumulator Volume
Enter the volume through the makeup water meters that will activate the relay.
Bleed Volume
Enter the volume through the bleed water meters that will deactivate the relay.
Makeup Meter
Select the makeup water meter from the pulldown list.
Makeup Meter 2
Select the makeup water meter from the pulldown list, if applicable, or leave at None.
Bleed Meter
Select the bleed water meter from the pulldown list.
Bleed Meter 2
Select the bleed water meter from the pulldown list, if applicable, or leave at None.
