Walchem W600 Series Instruction Manual page 75

Set point
Set point 2
Deadband
Delay Time*
Activate With Channels This setting only appears if the control mode of the Lead output is Manual and the
Reset Time Total
Output Time Limit
Reset Output Timeout Enter this menu to clear an Output Timeout alarm and allow the relay to control the
Name
Mode
Several standard settings that are available for most control modes are not available for Lag outputs. These features
affect the entire Lead Lag group and can be specified only within the Lead output's settings. The settings for these
fields are propagated down through the entire Lead Lag group when changed for the Lead output. Although the
settings for these fields are identical for all outputs in the Lead Lag group, the handling by each Lag output may be
independent or group-managed.
Below are the settings that are in the Lead Relay settings that will affect the Lead Lag group:
Interlock Channels
Min Relay Cycle
Hand Time Limit
Hand Output
This setting only appears if the control mode of the Lead output is On/Off or Dual Set-
point and the Activation Mode above is Setpoint Based.
Enter the process value for the input assigned to the Lead output that will trigger an
additional output to activate.
This setting only appears if the control mode of the Lead output is Dual Setpoint and
the Activation Mode above is Setpoint Based.
Enter the process value for the input assigned to the Lead output that will trigger an
additional output to activate.
This setting only appears if the control mode of the Lead output is On/Off or Dual Set-
pointand the Activation Mode above is Setpoint Based.
Enter the sensor process value away from the set point(s) at which the relay will deac-
tivate.
This setting only appears if the control mode of the Lead output is On/Off, Dual Set-
point, Spike or Manual.
Enter the amount of time, if any, to delay the activation of the output.
activation mode is Switch Based.
Select one or more digital input and/or relay output channels that, if activated, will also
activate the Lag output
Enter this menu to clear the accumulated time that the output has been activated . This
value is used for Time Balanced or Time Unbalanced wear leveling.
Enter the maximum amount of time that the relay can be continuously activated. Once
the time limit is reached, the relay will deactivate until the Reset Output Timeout menu
is entered.
process again.
The name used to identify the relay may be changed.
Select the desired control mode for the output.
Select the relays and digital inputs that will interlock this relay and all others in the
group.
Enter the number of seconds that will be minimum amount of time that each relay in
the group will be in the active or inactive state.
Normally this will be set to 0, but if using a motorized ball valve that takes time to
open and close, set this high enough that the valve has time to complete its movement.
Enter the amount of time that each relay in the group will activate for when it is in
Hand mode.
This menu only appears for pulse relay or analog output Lead outputs.
Enter the output % desired for each output in the group when the output is in Hand
mode.
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