Versions Compared

Version Old Version 17 New Version 18
Changes made by

Steve Gibson

Steve Gibson

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: Expanded on engineering modes. Added Excel file outlining Instec commands needed for KPF (for device start up and also for each mode of operation).

Table of Contents:Table of Contents:

Table of Contents

...

Page Status

Date

Initials

Change

June 1023, 2021

SG

Getting ready for Will and Brad (telemetry functions only so far).
PID update, Cool-down and Warm-up procedures to followEngineering modes, and device set up parameters (and mode settings) spreadsheet now included.

Link to page history

...

Relevant Devices

Green

Description

Qty

Source

Part Number

IP Address Link

Qty

Source

Part Number

IP Address Link

Green CCD Cold Head
Temperature Controller

1

Instec

mK2000

Aux Rack IP List

Red CCD Cold Head
Temperature Controller

1

Instec

mK2000

Aux Rack IP List

Green LN2 Pump

1

Instec

mK2000

Aux Rack IP List

Red CCD Cold Head
Temperature Controller

1

Instec

mK2000

Aux Rack IP List

Green LN2 Pump

1

Instec

LN2-SYS

N/A

Red LN2 Pump

1

Instec

LN2-SYS

N/A

Relevant Functional Block Diagram

...

Software Actions

Action

Notes

1

Read telemetry (Green)

Continuously running

2

Read telemetry (Red)

3Upload PID parameter table

LN2-SYS

N/A

Red LN2 Pump

1

Instec

LN2-SYS

N/A

...

Relevant Functional Block Diagram

...

Software Actions

Upload PID parameter table Cool-down procedure Cool-down procedure Warm-up procedure

Action

Notes

1

Read telemetry (Green)

Continuously running

2

Read telemetry (Red)

3

Operational Mode: Cold (Green)

Operational mode of CCD temperature maintained at cold temperature set point.

4

Operational Mode: Cold (Red)

5

Engineering Mode: Warm (Idle) (Green)

Engineering mode for idle case of warm CCD under no temperature control.

6

Engineering Mode: Warm (Idle) (Red)

7

Engineering Mode: Cool Down (Green)

Engineering and maintenance only

4

. Controlled ramp of cold head temperature from warm to cold.

8

Engineering Mode: Cool Down (Red)

5
9

Engineering Mode: Warm Up (Green)

Engineering and maintenance only

6

. Controlled ramp of cold head temperature from cold to warm.

10

Engineering Mode: Warm Up (Red)

7

Warm-up procedure (Green)

Engineering and maintenance only

811

Engineering Mode: Set PID (Green)

Engineering and maintenance only. Uploads a PID parameter table to the device.

12

Engineering Mode: Set PID (Red)

...

Operational Modes

...

Red TEMP:GPID

See notes above for Green counterpart.

TEMP:HOLD TEMP:RAMP

See notes above for Green counterpart.

TEMP:RAMP

See notes above for Green counterpart.

Power percentage, between -1 and +1 TBC

Setting

When Needed

Notes

Green Channel Instec

Build

Observing

Maintenance

Green PID Parameters

YES

NO

MAYBE

Instec app can save PID parameters to a .csv file. Likely convenient to use same format. Used with this command:

Code Block
TEMP:SPID

Verified with this command:

Code Block
TEMP:GPID

Green Heating/cooling status

YES

NO

MAYBE

Values: 0=Heating Only, 1=Heating and Cooling, 2=Cooling Only

Change between different modes with

Code Block
TEMP:CHSW

command. Green Cold .

Green Cold Temperature Set Point

YES

NO

MAYBE

Temperature in degrees C.

Used for the following commands:

Code Block
TEMP:HOLD
Code Block
TEMP:RAMP

Green Warm Temperature Set Point

YES

NO

MAYBE

Temperature in degrees C.

Used for the following commands:

TEMP:HOLD
Code Block
TEMP:HOLD
TEMP:RAMP

Green Cool-down Rate

YES

NO

MAYBE

Temperature change rate of degrees C per minute.

Note this value is positive-only and the mK2000 infers the direction based on current and desired temperature.

Used for the RAMP command:

Code Block
TEMP:RAMP

Green Warm Temperature Set Point-up Rate

YES

NO

MAYBE

Temperature in degrees Cchange rate of degrees C per minute

Note this value is positive-only and the mK2000 infers the direction based on current and desired temperature.

Used for the following commandsRAMP command:

Code Block
TEMP:HOLD
TEMP:RAMP

Green Cool-down Rate Power Percentage Value

YES

NO

MAYBE

Temperature change rate of degrees C per minute.

Note this value is positive-only and the mK2000 infers the direction based on current and desired temperature.

Used for the RAMP commandPower setting in percent.

NOTE: the power percentage value on the Instec screen is in percent. However, power values passed through software are ratios. i.e., to set power to 5% the command would be:

Code Block
TEMP:RAMP

Green Warm-up Rate

YES

NO

MAYBE

Temperature change rate of degrees C per minute

Note this value is positive-only and the mK2000 infers the direction based on current and desired temperature.

Used for the RAMP command:
RPP 0.05

and a following query

Code Block
TEMP:RAMP

Green Power Percentage Value

YES

NO

MAYBE

Power percentage, between -1 and +1

Status
colourRed
titleTBC

POW?

would return 0.050. Screen would say 5%.

Suggest using ‘units’ of percent for this variable to match display screen; and have software convert it to a ratio behind the scenes for commanding the Instec.

Red Channel Instec

Build

Observing

Maintenance

Red PID Parameters

YES

NO

MAYBE

Instec app can save PID parameters to a .csv file. Likely convenient to use same format. Used with this command:

Code Block
TEMP:SPID

Verified with this command:

Code Block

Red Heating/cooling status

YES

NO

MAYBE

Values: 0=Heating Only, 1=Heating and Cooling, 2=Cooling Only

Change between different modes with

Code Block
TEMP:CHSW

commandSee notes above for Green counterpart.

Red Cold Temperature Set Point

YES

NO

MAYBE

Temperature in degrees C.

Used for the following commands:

Code Block

Red Warm Temperature Set Point

YES

NO

MAYBE

Temperature in degrees C.

Used for the following commands:

Code Block
TEMP:HOLD
TEMP:RAMP

See notes above for Green counterpart.

Red Cool-down Rate

YES

NO

MAYBE

Temperature change rate of degrees C per minute.

Note this value is positive-only and the mK2000 infers the direction based on current and desired temperature.

Used for the RAMP command:

Code Block

Red Warm-up Rate

YES

NO

MAYBE

Temperature change rate of degrees C per minute

Note this value is positive-only and the mK2000 infers the direction based on current and desired temperature.

Used for the RAMP command:

Code Block
TEMP:RAMP

See notes above for Green counterpart.

Red Power Percentage Value

YES

NO

MAYBE

Status
colourRed
title

NO

MAYBE

Power setting in percent.

See notes above for Green counterpart.

...

Device Set-up Parameters

Annotated command list with KPF settings. Covers device start-up and also settings for the various modes.

View file
nameInstec Command List - KPF - June 23, 2021.xlsx

...

Required Telemetry

Parameter

Report Frequency

Purpose

Notes

1

Green Channel Instec

2

Device Serial Number?

At startup

Include in log just in case device is swapped out in future

Code Block
*IDN?

(third field of reply)

3

Device Rev Number

At startup

Include in log just in case device is swapped out in future

Code Block
*IDN?

(fourth field of reply)

4

Cold Head Temperature Value

1 Hz

Status
colourRed
titleTBC

Monitor CCD temperature

Code Block
TEMP:CTEM?
5

Heating/cooling enabled status

On change?

Status
colourRed
titleTBC

Current mode; outputs are:

0=Heating only, 1=Heating&Cooling; 2=Cooling only.

Code Block
TEMP:CHSW?
6

System status

On change?

Status
colourRed
titleTBC

Current status; outputs are:

0=Stop, 1=Hold Run, 2=Ramp Run, 3=Pause, 4=Profile Run, 5=PP Run, 6=Purge

Code Block
languagenone
TEMP:STAT?
7

Temperature set point

On change?

Status
colourRed
titleTBC

Temperature in deg C.

Code Block
TEMP:SPO?
8

Power value

1 Hz

Status
colourRed
titleTBC

Power value

Code Block
TEMP:POW?
9

Rate value

On change?

Status
colourRed
titleTBC

Rate value (for ramp mode)

Code Block
TEMP:RAT?
10

Red Channel Instec

11

Device Serial Number?

At startup

Include in log just in case device is swapped out in future

Code Block
*IDN?

(third field of reply)

12

Device Rev Number

At startup

Include in log just in case device is swapped out in future

Code Block
*IDN?

(fourth field of reply)

13

Cold Head Temperature Value

1 Hz

Status
colourRed
titleTBC

Monitor CCD temperature

Code Block
TEMP:CTEM?
14

Heating/cooling enabled status

On change?

Status
colourRed
titleTBC

Current mode; outputs are:

0=Heating only, 1=Heating&Cooling; 2=Cooling only.

Code Block
TEMP:CHSW?
15

System status

On change?

Status
colourRed
titleTBC

Current status; outputs are:

0=Stop, 1=Hold Run, 2=Ramp Run, 3=Pause, 4=Profile Run, 5=PP Run, 6=Purge

Code Block
languagenone
TEMP:STAT?
16

Temperature set point

On change?

Status
colourRed
titleTBC

Temperature in deg C.

Code Block
TEMP:SPO?
17

Power value

1 Hz

Status
colourRed
titleTBC

Power value

Code Block
TEMP:POW?
18

Rate value

On change?

Status
colourRed
titleTBC

Rate value (for ramp mode)

Code Block
TEMP:RAT?

...

Parameter

Threshold

Notes

1

Cold Head Temperature Value Low (Green)

Status
colourRed
titleTBC

2

Cold Head Temperature Value High (Green)

Status
colourRed
titleTBC

3

Cold Head Temperature Value Low (Red)

Status
colourRed
titleTBC

4

Cold Head Temperature Value High (Red)

Status
colourRed
titleTBC

...

Relevant Datasheets & Manuals

...