Rockwell Automation 1503VC IntelliVAC Plus Contactor Control Module - Manual (Page 43)

4-16 Description of Features
1503-UM054C-EN-P – June 2013
The IntelliVAC Plus is adaptable to a range of atmospheric pressures
and altitudes. This should eliminate the need for special return springs
within the contactors, by regulating the coil current to apply the
appropriate closing, holding and opening force.
The range of altitudes covered is: –1,000 → 5,000 metres
In this case, a simple “altitude parameter” will be used to adapt the
contactor closing force. The parameter would be settable, between –
1,000 and 5,000 metres, with a display resolution of 1000 metres.
The IntelliVAC Plus provides for altitude set-up in discrete settings,
via DIP switches on the IB unit as follows:
-1000 → 0000 meters
0001 → 1000 meters
1001 → 2000 meters
2001 → 3000 meters
3001 → 4000 meters
4001 → 5000 meters
The altitude setting is one of the parameters used to determine the
contactor coil current values.
The Altitude parameter will not be settable on DeviceNet, but only
configured through the DIP switches on the IB unit(s) and will be
viewable on DeviceNet as follows:
‘Altitude = ‘ ‘-1000 to 0000m’ or ‘0001 to 1000m’ or ‘1001 to
2000m’ or ‘2001 to 3000m’ or ‘3001 to 4000m’ or ‘4001 to 5000m’
In an MC topology, if the Altitude and settings from the DIP
switches from the two or more IB units are not consistent, then a
warning will be indicated. The warning will be indicated as in Table
4.F. In this situation, the following message will be displayed on
DeviceNet:
‘MC Altitude Set Warning’
Operations Counter The IntelliVAC Plus includes a counter that tracks the number of
contactor operations. The following sub-registers shall be associated
with the Operations Counter:
‘Master’ Counter
‘Operations Since’ Counter
‘Average Operations’ Counter
Altitude/Air Pressure
Compensation (400A
Contactors)