Operator`s manual

3500 VRC Operator’s Manual

V5.00.26

October

2006

Revision M

Part No. : AM

3500V/M/SIMV5

Updated : 12/10/2006

5.2 - Fan Alarm

The 3500VRC has two RPM inputs. Both of these inputs can be set up as either a Fan rpm input or

in the case of liquid a pump rpm input (see 5.8 Pump RPM). The fan alarm warns the operator

when the fan rpm is outside the low and high set points. Two fan alarms are available. Enabling the

fan alarm displays live fan rpm on the main screen.

Fan alarms must be enabled before setting the fan low and high alarm points.

Note

DC and hydraulic drives will not start metering if either of the two fans are operating below the

low alarm points. At any one time, only one Fan and one Pump, or two fans only, or two

pumps only can be used.

5.2.1 - Enable Fan Alarm

1. For a single fan press and hold for 3 seconds the softkey pointing at “FAN 1”.

2. “DISABLED” will change to “ENABLED”. If fan 1 is operating live fan rpm will be displayed.

3. For a second fan press and hold for 3 seconds the softkey pointing at “FAN 2”.

4. “DISABLED” will change to “ENABLED”. If fan 2 is operating live fan rpm will be displayed.

5.2.2 - Set High and Low Points

1. Press the softkey pointing at “FAN 1” until the fan 1 low alarm value is highlighted.

2. Use the arrows keys to enter the fan 1 low alarm point. Refer to manufacturer recommended

settings.

3. Press the softkey pointing at “FAN 1” until the fan 1 high alarm value is highlighted.

4. Use the arrows keys to enter the fan 1 high alarm point setting. Refer to manufacturer

recommended settings.

5. To set the fan 2 alarm use the softkey pointing to “FAN 2” to highlight low and high alarm

points. Use steps 1-4 above as a guide.

After enabling the fan alarm, live rpm readings for one or both fans will be displayed in the alarms

menu and main screen.

Note

For DC motor and hydraulic drives (HYD MFC, HYD PROP2, HYD DANFOSS, HYD PROP/XPRO)

product metering will automatically stop if fan 1 or fan 2 rpm falls below the low alarm points. At

any one time, only one Fan and one Pump, or two fans only, or two pumps only can be

used.