
DCM 200 Installation
Page 29
6.6.2. Frequency Controls :
P4 to P5 pulse outputs control pump frequency. The pump is always plugged into an AC supply and the
pumping rate is set by the frequency of pulses from the controller.
Control
Setpoints
Control Range Setpoints are TurnOFF &
100%ON
Proportional variable frequency control.
Meters:
Setpoints are ppm & volume.
Contact Sets: See Notes 1
Setpoints are seconds
& feed volume In mL
100%ON @ user set seconds after contacts
close then feed setpoint volume.
Control Range Setpoints are TurnOFF &
TurnON
Relay is OFF or ON.
Meters:
Setpoints are volume & ON time.
Contact Sets: See Notes 1
Setpoints are seconds.
TurnON@ user set seconds after contacts
close.
Turn OFF user set seconds after ON.
Events
User sets event volume.
Event ends on volume fed
User sets ON time.
Event ends when time elapsed.
Logging
Logs volume fed in each log interval
Log ON time in each log interval
Limits
Limit = Volume per Feed @ MAX SPM
Limit = Volume/Day Notes 2
Limit = Time ON per actuation
Limit = Time ON /Day Notes 2
Method
‘Aways’
OR
‘During Events’
Rising, Falling & Between setpoints.
OR
Rising, Falling & Between during events.
[not typical in
pools and
spas]
Up to 4 Relay or Frequency controls may
block .
Blocks on any Relay ON or any Frequency
at a non-zero SPM.
Up to 4 Relay or Frequency controls may
block .
Blocks on any Relay ON or any Frequency
at a non-zero SPM.
[Flow Switches]
Up to 2
may interlock..
Up to 2
may interlock..
Modulation
Pump ON time reduced as sensor
approaches TurnOFF setpoint.
Selection
User selects Pump Type which sets default
mL/stroke & Max. SPM..
‘Other’ type allow user to set MAX SPM.
All types allow user to modify
mL/stroke.
Checks that existing feed rates are possible
when user changes pumps or set to MAX
SPM and alarm message if feed rate
modified.
Pump changes update the event log.
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