Xylem IM167 R8 Aquavar CPC (Centrifugal Pump Control) - Manual (Page 108)

108
Discharge Header
Flow Switch
Speed Signal
1
Parameter Name Value/Range Note(s)
18.01 RELAY R0 NOT USED Default for RO1
OUTPUT
18.04 RELAY R02 RUNNING Default for RO2
OUTPUT
18.07 RELAY R03 READY Default for RO3
OUTPUT
VFD FAULT
SECND PRTECT A Secondary Protect A activation.
PUMP PROTECT Pump protection activation.
START SLAVE Used with multi-pump macro only.
STAND BY
NOTE: When using relay outputs to activate constant speed pumps in a multi-pump
application, the slave pumps 1, 2 and 3 should utilize relay outputs RO1, RO2, and RO3
accordingly (Slave 1 → RO1). Sequence logic is affected by these selections.
Restart Options
Parameter 14.05 — See MINIMUM SPEED OPTIONS
Low Water (Suction) Protection
The Aquavar provides protection from “dry-run” conditons in pressure, level, temperature and
speed control modes. This feature may also be used to provide inter-lock capabilities. In these
cases, additional system condition inputs (e.g. level switch, pressure switch, flow switch, etc…)
are used to alert Aquavar of conditions that require protection of the pump.
Once wired, parameter 24.05 LOW WATER must be set to WARNING or WARN AND
CONTROL. Digital Input 2 (DI 2), terminal # 14 on the X1 terminal board. If this contact is
OPEN, the response being:
1. WARN & CONTROL – In this response, Aquavar will issue a warning and then either shut
down or reduce speed depending on your settings. At this point the pump will behave
similar to the description in MINIMUM SPEED. Alarm & Control is the recommended
setting.
FEATURES