Machine Parameters – Coolant

Coolant Parameters

The coolant parameters are used to control coolant flow to the spindle (known as flood coolant), coolant flow in the machine enclosure (known as washdown coolant), or to turn the washdown coolant pump on or off. The Washdown Coolant Pump must be On for Right and Left side operation. Some coolant parameters may not be functional on your machine. For examples of how to use washdown coolant parameters on your Hurco machine, see Washdown Coolant Parameter Examples.

Washdown coolant flow for VMX24, VMX30, VMX42, and VMX50 machines is continuous to both sides of the enclosure. The amount of washdown coolant used during machining operations is controlled by cycling the washdown coolant pump.

The VMX60, VMX6030, VMX64, and VMX84 machines are equipped with a butterfly solenoid that alternates washdown coolant flow between the right and left sides of the machine enclosure.

This is the washdown coolant flow cycle for VMX64 and VMX84 machines:

1. Coolant flows on right side of machine enclosure (defined in Alt Washdown Dwell).

2. Pause time of no coolant flow (defined in Alt Washdown Off Time).

3. Coolant flows on left side of machine enclosure (defined in Alt Dwell Lt Side).

4. Pause time of no coolant flow (defined in Alt Washdown Off Time).

The amount of washdown coolant used during machining operations for VMX60, VMX6030, VMX64, and VMX84 machines is controlled by the time washdown coolant flows/pauses to each side of the machine enclosure, and/or by cycling the washdown coolant pump.

VMX64 and VMX84 machines are equipped with a separate Factory-configured timer to control the Y-axis rear way cover washdown on and off cycles.

Machine Pause - Flood Coolant

Machine Pause - Flood Coolant pauses the running part program for the indicated time (0-60 seconds) whenever the program enables the primary flood coolant.

The default is 0 seconds.

Machine Pause - Secondary Coolant

Machine Pause - Secondary Coolant pauses the running part program for the indicated time (0-60 seconds) whenever the program enables the secondary (CTS) coolant.

The default is 0 seconds.

Aux Coolant Console Button

Identifies which auxiliary output the console Aux Coolant button controls. 0 is disabled.
1-12 identify the auxiliary output.

M52-M55 and M142-M149 are used in the program to enable the auxiliary equipment or machine function that the Aux Coolant Console button controls.

Pulsating or Delay Washdown Enable

This parameter is used with other washdown coolant features to regulate washdown coolant flow for continuous clearing of chips from the machine enclosure.

Parameter operation is determined by machine type.

1. VMX24, VMX30, VMX42, VMX50—use this parameter to manage washdown coolant flow:

   1. When Pulsating or Delay Washdown Enable = OFF, washdown coolant will continuously flow on the right and left sides of the machine enclosure. Values in the Alt Washdown Dwell, Alt Dwell Lt Side, or Alt Washdown Off Time will have no effect on washdown coolant operation.

   2. When Pulsating or Delay Washdown Enable = ON, do not use this setting for a VMX24, VMX30, VMX42, VMX50, or VMX60 machine. If unexpected performance occurs, refer to the Machine Maintenance section of the Maintenance and Safety Manual.

   3. When Pulsating or Delay Washdown Enable = DELAY TIMERS, the washdown coolant pump will cycle for the times defined in Washdown Delay On Timer and Washdown Delay Off Timer.

   4. The default setting for Pulsating or Delay Washdown Enable is OFF.

1. VMX60, VMX6030, VMX64, VMX84—use this parameter to alternate washdown coolant flow on the machine enclosure:

   1. When Pulsating or Delay Washdown Enable = OFF, do not use this setting for a VMX64 or VMX84 machine. If unexpected performance occurs, refer to the Machine Maintenance section of the Maintenance and Safety Manual.

   2. When Pulsating or Delay Washdown Enable = ON, washdown coolant flow will cycle for the times defined in Alt Washdown Dwell, Alt Dwell Lt Side and Alt Washdown Off Time.

   3. When Pulsating or Delay Washdown Enable parameter = DELAY TIMERS, the washdown coolant pump will cycle for the times defined in Washdown On Delay Timer and Washdown Off Delay Timer, whether or not washdown coolant flow is alternating in the machine enclosure.

   4. The default setting for Pulsating or Delay Washdown Enable is ON.

Pulsating or Delay Washdown Enable is not functional for HMX, VM, and VTXU machines.

Alt Washdown Dwell

This parameter controls the time washdown coolant flows on the right side of the machine enclosure. Alt Washdown Dwell is used with Alt Washdown Off Time to define the washdown coolant flow cycle on the right side of the machine enclosure. The value for Alt Washdown Dwell in 0.01 sec increments, so a value of 500 equates to 5 sec.

Pulsating or Delay Washdown Enable must be set to ON or DELAY TIMERS to use Alt Washdown Dwell. Parameter operation is determined by machine type.

1. VMX24, VMX30, VMX42, VMX50

   1. When Pulsating or Delay Washdown Enable = ON, do not use this setting for a VMX24, VMX30, VMX42, VMX50 or VMX60 machine. If unexpected performance occurs, refer to the Machine Maintenance section of the Maintenance and Safety Manual.

   2. When Pulsating or Delay Washdown Enable = DELAY TIMERS, Alt Washdown Dwell is not functional; entering a value in Alt Washdown Dwell will have no effect on washdown coolant flow for a VMX24, VMX30, VMX42, VMX50 or VMX60 machine.

   3. The default setting for Alt Washdown Dwell is 500 (5 seconds), but set this parameter to 0 to avoid unexpected performance. If unexpected performance occurs, refer to the Machine Maintenance section of the Maintenance and Safety Manual.

2. VMX60, VMX6030, VMX64—When Pulsating or Delay Washdown Enable = ON or DELAY TIMERS, define the time for washdown coolant to flow on the right side of the machine enclosure.

   1. The default setting for Alt Washdown Dwell is 500 (5 seconds).

3. VMX84—When Pulsating or Delay Washdown Enable = ON or DELAY TIMERS, define the time for washdown coolant to flow on the right side of the machine enclosure.

   1. The default setting for Alt Washdown Dwell is 1000 (10 seconds).

Alternating Washdown Dwell is not functional for HMX, VM, and VTXU machines.

Alt Dwell Left Side

On VMX60, VMX64, and VMX84 machines, this parameter controls the time washdown coolant flows on the left side of the machine enclosure. Alt Dwell Left Side is used with Alt Washdown Off Time to cycle washdown coolant flow on the left side of the machine enclosure. The value for Alt Dwell Lt Side is in 0.01 sec increments, so a value of 500 equates to 5 sec.

Pulsating or Delay Washdown Enable must be set to ON or DELAY TIMERS to use Alt Dwell Left Side. Parameter operation is determined by machine type.

1. VMX24, VMX30, VMX42, VMX50—Alt Dwell Left Side is not functional; entering a value in Alt Dwell Left Side will not affect washdown coolant flow for a VMX24, VMX30, VMX42, VMX50 or VMX60 machine.

   1. The default setting for Alt Washdown Dwell is 200 (2 seconds), but you should set this parameter to 0 to avoid unexpected performance. If unexpected performance occurs, refer to the Machine Maintenance section of the Maintenance and Safety Manual.

2. VMX60, VMX6030, VMX64, VMX84—define the time for washdown coolant to flow on the left side of the machine enclosure.

   1. Alt Dwell Left Side will only function if the Alt Washdown Dwell is greater than 0. If the value of Alt Washdown Dwell is 0, the machine will ignore Alt Dwell Lt Side and washdown coolant will not flow on either side of the machine enclosure.

   2. If Alt Dwell Left Side = 0 and Alt Washdown Dwell is greater than 0, washdown coolant will flow to the left side of the enclosure for the time defined in Alt Washdown Dwell.

   3. The default setting for Alt Dwell Let Side is 200 (2 seconds).

Alternating Dwell Left Side is not functional for HMX, VM, and VTXU machines.

Alt Washdown Off Time

On VMX64 and VMX84 machines, this parameter defines the pause time in the washdown coolant flow cycle. The value is in 0.01 sec increments, so a value of 500 equates to 5 sec.

Pulsating or Delay Washdown Enable must be set to ON or DELAY TIMERS to use Alt Washdown Off Time. Parameter operation is determined by machine type.

1. VMX24, VMX30, VMX42, VMX50—Alt Washdown Off Time is not functional; entering a value in Alt Washdown Off Time will not affect washdown coolant flow for a VMX24, VMX30, VMX42, VMX50 or VMX60 machine.

   1. The default setting for Alt Washdown Off Time is 0; this parameter is not functional for a VMX24, VMX30, VMX42, VMX50, or VMX60 machine.

2. VMX60, VMX6030, VMX64, VMX84—When Pulsating or Delay Washdown Enable = ON or DELAY TIMERS, washdown coolant flow will pause for the time indicated in the Alt Washdown Off Time after coolant flow on each side of the enclosure.

   1. If Alt Washdown Off Time is set to 0, the washdown off-time is 0.7 sec.

   2. The default setting for Alt Washdown Off Time is 200 (2 seconds).

Alternating Washdown Off Time is not functional for HMX, VM, and VTXU machines.

Washdown On Delay Timer

This parameter defines the time (in seconds) the washdown coolant pump is On, and is used with the Washdown Off Delay Timer to manage coolant usage. The default setting for Washdown On Delay Timer is 0 seconds.

Pulsating or Delay Washdown Enable must be set to DELAY TIMERS to use Washdown On Delay Timer.

1. VMX24, VMX30, VMX42, VMX50—washdown coolant flow will be continuous to both sides of the machine enclosure during the time the washdown coolant pump is On.

2. VMX60, VMX6030, VMX64, VMX84—the washdown coolant pump is On for the time defined, whether or not washdown coolant flow is alternating in the machine enclosure. Washdown Coolant Parameter Examples shows an example where the washdown coolant pump cycles on and off while washdown coolant flow is alternating on the machine enclosure.

1. The default setting for Washdown On Delay Timer is 0 seconds.

This parameter defines the time (in seconds) the washdown coolant pump is On, and is used with the Washdown Off Delay Timer to manage coolant usage. Washdown On Delay Timer is not functional for VM machines.

Washdown Off Delay Timer

This parameter defines the time (in seconds) the washdown coolant pump is Off, and is used with the Washdown On Delay Timer to manage coolant usage. The functionality of this feature is dependent upon machine type. Washdown Off Delay Timer is not functional for VM machines.

Pulsating or Delay Washdown Enable must be set to DELAY TIMERS to use this parameter.

1. VMX24, VMX30, VMX42, VMX50—defines the time the washdown coolant pump is Off.

2. VMX60, VMX6030, VMX64, VMX84—defines the time the washdown coolant pump is Off, whether or not coolant flow is alternating in the machine enclosure.

1. The default setting for Washdown Off Delay Timer is 0 seconds.

Examples for Coolant Parameters Use

Washdown Coolant Parameter Examples