Danfoss VLT Series Operating Instructions Manual

Also see for VLT series: Service manual Installation guide Operating instructions Operating instructions Service manual

Danfoss VLT Series Operating Instructions Manual Manual pdf 35 page image

[0] Drive X Enable Enable follower drive XPump K to Drive N Connect pump K to drive NPump K to Mains Connect pump K to mainsNB!If MCO 102 is installed, the relay option MCB 105 may also be available for cas-cade control.1.8.9 Readouts, 27-9*Cascade Control Option Readout Parameters27-91 Cascade ReferenceCascade Reference is a readout parameter that shows the reference output for use with follower drives. This reference is available even when the masterdrive is stopped. This is the speed that the drive is operating at or would be operating at if it were on. It is scaled as a percent ofMotor Speed High Limit(P4-13[RPM] or P4-14[Hz]).Units: %27-92 Current % of Total CapacityCurrent % of Total Capacity is a readout parameter that shows the system operating point as a % capacity of total system capacity. 100% means allpumps are on at full speed.Units: %27-93 Cascade Option StatusOption: Function:Cascade Option Status is a readout parameter to show the status of the cascade system.[0] * Disabled The cascade option is not used.Off The cascade option is turned off.Running The cascade option is running normally.Running at FSBW The cascade option is running in fixed speed mode. No variable speed pumps are available.Jogging The system is running at the jog speed set in P3-11.In Open Loop The system is set to open loop.Freezed The system is frozen in the current state. No changes will take place.Emergency The system is stopped due to Coast, Safety Interlock, Trip Lock, or Safe Stop.Alarm The system is operating with an alarm condition.Staging A staging operation is in progress.Destaging A destaging operation is in progress.Alternating An alternation operation is in progress.Lead Pump Not Set A lead pump has not been selected.27-94 Cascade System StatusCascade System Status is a readout parameter that shows the status of each individual pump.VLT® Operating Instructions1 Extended and Advanced Cascade ControllerOptionMI.38.C3.02 - VLT® is a registered Danfoss trademark 351