MKS/TKS General Purpose Controller

for MKS

for TKS

SMART Tune function (Auto-tuning algorithm)

Loop break alarm function

Relay or SSR output selectable

One linear output (mA)

Control output programmable as servomotor or time proportional output

Programmable open or closed loop servomotor control

MKS/TKS-Relay
MKS/TKS with relay or SSR output selectable
- Output failure detection alarm with load current measurement (OFD function).
- 2 programmable setpoints (main and auxiliary).

Outputs
Type: time proportioning
Action: direct/reverse keyboard programmable
Main output cycle time: programmable from 1 to 200 seconds
Secondary output cycle time:programmable from 1 to 200 seconds

Output 1 relay
Note:for Output 1 only, the relay output and SSR output are both fitted and the output to be used is selected by jumper
Function:control output (heating)
Relay type: SPST. NO or NC contact is selected by jumper
Contact rating:3 A @ 250 Vac on resistive load

Output 1 SSR
- Logic level 1: 14 Vdc ±20% @ 20 mA max. 24 Vdc ±20% @ 1 mA max.
- Logic level 0: < 0.5 Vdc.

Output 2 and 3
Type:relay with SPST contact
Contact rating:2 A @ 250 Vac on resistive load.

Output 4 (optional alarm 3 output)
Type: relay with SPST contact
Contact rating:2 A @ 250 Vac on resistive load

Setpoint

Two setpoints available:

Note: transfer by a step or by a ramp with two different programmable rates of rise (ramp up and ramp down)

Setpoint limiters: setpoint low limit and setpoint high limit are programmable

- main setpoint (SP)

- second setpoint (SP2)

Setpoint transfer: by logic input (contact closure)

Logic Input

The logic input is used to select between the main setpoint (SP) and the second setpoint (SP2).

Output Failure Detection (Optional OFD Function)

By means of an external current transformer, the instrument will measure the load current for output 1

Active period:

- for relay output: NO or NC

- for SSR output: logic level 1 or 0

Minimum active period to perform the measurement 400 ms.

Input range: 50 mA AC

Scaling: from 10 A to 100 A (with 1 A step)

Resolution:

- for full scale up to 20A: 0.1A

- for full scale from 21 A to 100 A: 1A

MKS/TKS-mA
MKS/TKS-mA with linear output
- One linear output (mA) programmable as control output or analog retransmission of the measured value or operating setpoint.
- 4 local setpoints selectable by logic inputs.
- 24 Vdc auxiliary power supply.

Outputs
Action: direct/reverse keyboard programmable
Main output cycle time:programmable from 1 to 200 seconds
Secondary output cycle time: programmable from 1 to 200 seconds

Output 1
Type: opto-isolated 0-20 mA or 4-20 mA
Function: Programmable as:
- Control output (heating or cooling)
- Retransmission of the measured value
- Retransmission of the operating setpoint
Scaling: programmable from -1999 to 4000
Maximum load: 500 W
Resolution: 0.1% when used as control output; 0.05% when used as analog retran
Digital filter: on the output retransmission (same time constant as readout)
Output level indication: (as control output only) from 00.0 to 100.0%
Output status indication: the OUT 1 indicator flashes with a duty cycle proportional to the output level

Output 2 Relay
Note: for Output 2 only, the relay output and SSR output are both fitted, and the output used is selected by jumper
Function: control output (heating)
Relay type: SPST. Contact NO or NC selectable by jumper
Contact rating: 3 A @ 250 Vac on resistive load

Output 2 SSR
- Logic level 1: 14 Vdc ±20% @ 20 mA max
24 Vdc ±20% @ 1 mA max
- Logic level 0: < 0.5 Vdc

Output 3
Type: relay with SPST contact
Function: control output or alarm 2 output
Contact rating: 2 A @ 250 Vac on resistive load

Output 4 (optional alarm 3 output)
Type: relay with SPST contact
Contact rating: 2 A @ 250 Vac on resistive load

Setpoint

4 setpoints available: SP, SP2, SP3 and SP4

Setpoint limiters: setpoint low limit and setpoint high limit are programmable

Setpoint transfer: by logic input (contact closure)

Note: transfer by a step or by a ramp with two different programmable rates of rise (ramp up and ramp down)

Logic Input

2 logic inputs (contacts) available for operating setpoint selection: SP, SP2, SP3 and SP4 (binary code)

Auxiliary Power Supply

Type: non-isolated 24 Vdc

Output variation: ±10% of the nominal value

Maximum current: 25 mA with short circuit protection

MKS/TKS - Servo
For MKS/TKS-Servo with servomotor control output
- 4 local setpoints selectable by logic inputs
- AUTO/MANUAL transfer with programmable valve positioning

Outputs
Action:direct/reverse keyboard programmable
Main output cycle time: programmable from 1 to 200 seconds
Secondary output cycle time: programmable from 1 to 200 seconds

Output 1 and 2 servomotor
Type: 2 interlocked relays(Open/Closed)
Relay:SPST contact (NO)
Contact rating: 3 A @ 250 Vac on resistive load

Output 1 Relay
Function:control output
Relay type:SPST. NO or NC selectable by jumper
Contact rating: 3 A @ 250 Vac on resistive load

Output 3
Type:relay with SPST contact
Contact rating: 2 A @ 250 Vac on resistive load

Output 4 (optional alarm 3 output)
Type:relay with SPST contact
Contact rating:2 A @ 250 Vac on resistive load

Control output
A) Closed loop Feedback
Potentiometer range: from 100 Wto 10KW
Servomotor deadband: from 1% to 50% of the selected stroke time
Control action:direct or reverse programmable
Valve position limiter: low and high limiters programmable
B) Open loop servomotor with valve position Indication
Potentiometer range: from 100W to 10KW
Servomotor deadband: from 1% to 50% of the selected stroke time
Servomotor stroke time: programmable from 6 seconds to 3 minutes
Control action:direct or reverse programmable
C) Open loop servomotor without valve position indication
Servomotor deadband: from 1% to 50% of the selected stroke time
Servomotor stroke time: programmable from 6 seconds to 3 minutes
Control action: direct or reverse programmable
D) One time proportioning output
Output used: output 1
Control action: direct or reverse programmable
Output cycle time: from 1 to 200 seconds
Output power limiting: high limit programmable
E) Two time proportioning outputs
Outputs used: outputs 1 and 3
Output cycle time: from 1 to 200 seconds
Output power limiting: high limit programmable

Auxiliary Power Supply

4 setpoints available: SP, SP2, SP3 and SP4

Setpoint limiters: setpoint low limit and setpoint high limit are programmable

Setpoint transfer: by logic input (contact closure)

Note: transfer by a step or by a ramp with two different programmable rates of rise (ramp up and ramp down)

Logic Input

Three logic inputs (contact closures) available. Two are used for operating setpoint selection: SP, SP2, SP3 and SP4 (binary code)

Last Updated Thursday, September 01, 2005