Chromalox TEMPERATURE CONTROLLER 1604-7 User Manual

1604-7

Temperature Controller with mA Output

Issue date r USER'S MANUAL
May 2000

Chromalox

1604

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CONTENTS

MOUNTING REQUIREMENTS ........................... 1

OUTLINE AND CUT OUT DIMENSIONS ........... 2

CONNECTION DIAGRAMS ................................ 3

PRELIMINARY HARDWARE SETTINGS ........... 9

CONFIGURATION PROCEDURE .................... 10

OPERATIVE MODE .......................................... 18

Display function .......................................... 18

Indicators ................................................... 18

Pushbutton function during operating mode 19

Enable/disable the control output ............... 19

SP-SP2 selection ....................................... 19

Direct access to the set point ..................... 20

Manual function .......................................... 20

Lamp test ................................................... 20

Serial link ................................................... 21

SMART function ......................................... 21

OPERATIVE PARAMETERS ............................ 22

ERROR MESSAGES ........................................ 25

GENERAL INFORMATIONS ............................ 27

MAINTENANCE ................................................ 31

DEFAULT PARAMETERS ...............................A.1

II

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III

Model identification

Model

1604 1/16 DIN Temperature Controller

Code Output 1 - Heat or Cool

7 20 mA Output

Code Output 2 - Alarm

1 Relay, 2 Amp at 250 VAC (Resistive load)

Code

0 None

1 Out #3, 2 Amps at 250 V AC (Resistive load)

2 Heater Break Down input, Out #3

3 RS 485 Digital communications, Out #3

4 RS 485 Digital comm., Heater Break Down input, Out #3

Code Instrument Power

3 100 - 240 Vac

5 24 Vac/dc

Code

0 Add to complete model number

1601 6 1 0 3 0 Typical Model Number

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1

MOUNTING REQUIREMENTS

Select a mounting location where there is
minimum vibration and the ambient temperature
range between 0 and 50 °C.
The instrument can be mounted on a panel up to
15 mm thick with a square cutout of 45 x 45 mm.
For outline and cutout dimensions refer to Fig. 2.
The surface texture of the panel must be better
than 6,3 mm.
The instrument is shipped with rubber panel
gasket (50 to 60 Sh).
To assure the IP65 and NEMA 4 protection, insert
the panel gasket between the instrument and the
panel as shown in fig. 1.
While holding the instrument against the panel
proceed as follows:

1) insert the gasket in the instrument case;

2) insert the instrument in the panel cutout;

3) pushing the instrument against the panel,

insert the mounting bracket;

4) with a screwdriver, turn the screws with a

torque between 0.3 and 0.4 Nm.

Fig. 1

Panel

bracket

Screw

Gasket

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2

OUTLINE AND CUT OUT
DIMENSIONS

Fig. 2 OUTLINE AND CUT-OUT DIMENSIONS

3.0

(75)

2.4
(60)

1.77
(45)

1.77
(45)

1.9
(48)

2.2

(56)

4.8

(122)

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3

CONNECTION DIAGRAMS

Connections are to be made with the instrument
housing installed in its proper location.

Fig. 3 .A

REAR TERMINAL BLOCK

A) MEASURING INPUTS
NOTE: Any external components (like zener

barriers etc.) connected between sensor and
input terminals may cause errors in measurement
due to excessive and/or not balanced line
resistance or possible leakage currents.

TC INPUT

Fig. 4

NOTE:

1) Don’t run input wires together with power
cables.

2) For TC wiring use proper compensating cable
preferable shielded.

3) when a shielded cable is used, it should be
connected at one point only.

9

+

_

Shield

9

+

_

Shield

10

10

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4

LINEAR INPUT

Fig. 6 mA, mV AND V INPUTS WIRING

NOTE:

1) Don’t run input wires together with power

cables.

2) Pay attention to the line resistance; a high line

resistance may cause measurement errors.

3) When shielded cable is used, it should be

grounded at one side only to avoid ground loop
currents.

4) The input impedance is equal to:

< 5 W for 20 mA input
> 1 MW for 60 mV input
> 200 kW for 5 V input
> 400 kW for 10 V input

RTD INPUT

Fig. 5 RTD INPUT WIRING

NOTE:

1) Don’t run input wires together with power
cables.

2) Pay attention to the line resistance; a high line
resistance may cause measurement errors.

3) When shielded cable is used, it should be
grounded at one side only to avoid ground loop
currents.

4) The resistance of the 3 wires must be the
same.

8

RTD

10

9 8

RTD

10

9

Shield

_

+

mA,

mV

or
V

9

+

_

G

mA
mV

or

V

10

9

10

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5

B) LOGIC INPUT

Safety note:

1) Do not run logic input wiring together with
power cables.

2) Use an external dry contact capable of
switching 0.5 mA, 5 V DC.

3) The instrument needs 100 ms to recognize a
contact status variation.

4) The logic inputs are NOT isolated by the
measuring input

Fig. 7 - LOGIC INPUT WIRING

This logic input allows to select the operative set
point.

logic input op. set point

open SP
close SP2

C) RELAY OUTPUTS

Fig. 8 RELAY OUTPUTS WIRING
The contact rating of the OUT 2, 3 is 2A/250V AC
on resistive load.
The number of operations is 1 x 105 at specified
rating.
NOTES 1) To avoid electrical shock, connect

power line at the end of the wiring
procedure.

2) For power connections use No 16 AWG
or larger wires rated for at last 75 °C.

3) Use copper conductors only.

4) Don’t run input wires together with
power cables.

The relay contacts are protected by varistor against
inductive load with inductive component up to 0.5 A.

The following recommendations avoid serious
problems which may occur, when using relay
output for driving inductive loads.

14

SP / SP2

15

2

1

3

NO - OUT 3

NO - OUT 2

C - OUT 2 and 3

OUT 2

OUT 3

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6

LINEAR OUTPUT

This instrument is equipped with one linear output
(OUT 1) programmable as:

- main output (heating or cooling)

- secondary output (cooling)

- analog retransmission of the measured value

- analog retransmission of the operative set point.

Fig. 10 mA OUTPUT WIRING

It is an isolated analog output.
Maximum load: 500 W.

INDUCTIVE LOADS

High voltage transients may occur switching
inductive loads.
Through the internal contacts these transients
may introduce disturbances which can affect the
performance of the instrument.
For the OUT 2 and OUT 3, the internal protection
(varistor) assures a correct protection up to 0.5 A
of inductive component.

The same problem may occur when a switch is
used in series with the internal contacts as shown
in Fig. 9.

Fig. 9 EXTERNAL SWITCH IN SERIES WITH
THE INTERNAL CONTACT

In this case it is recommended to install an
additional RC network across the external contact
as show in Fig. 9

The value of capacitor (C) and resistor (R) are
shown in the following table.

The cable involved in relay output wiring must be
as far away as possible from input or communica­tion cables.

LOAD

R

C

POWER

LINE

+

_

+

_

20 mA

6

7

OUT 1

LOAD

(mA)

<40 mA
<150 mA
<0.5 A

C

(mF)

0.047

0.1

0.33

R

(W)

100

22
47

P.

(W)

1/2

2
2

OPERATING

VOLTAGE

260 V AC
260 V AC
260 V AC

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7

SERIAL INTERFACE

RS-485 interface allows to connect up to 30
devices with one remote master unit.

Fig. 11 - RS-485 WIRING
The cable length must not exceed 1.5 km at 9600
BAUD.
NOTE: The following report describes the signal

sense of the voltage appearing across the
interconnection cable as defined by EIA for
RS-485.
a) The ” A ” terminal of the generator shall

be negative with respect to the ” B ”
terminal for a binary 1 (MARK or OFF)
state.

b) The ” A ” terminal of the generator shall

be positive with respect to the ” B ”
terminal for a binary 0 (SPACE or ON)
state.

D) POWER LINE WIRING

Fig. 12 POWER LINE WIRING

NOTES:

1) Before connecting the instrument to the power
line, make sure that line voltage corresponds to
the description on the identification label.

2) To avoid electrical shock, connect power line at
the end of the wiring procedure.

3) For supply connections use No 16 AWG or larger
wires rated for at last 75 °C.

4) Use copper conductors only.

5) Don’t run input wires together with power cables.

6) For 24 V DC the polarity is a do not care condition.

7) The power supply input is NOT fuse protected.
Please, provide it externally.

Power supply Type Current Voltage

24 V AC/DC T 500 mA 250 V

100/240 V AC T 125 mA 250 V
When fuse is damaged, it is advisable to verify
the power supply circuit, so that it is necessary to
send back the instrument to your supplier.

8) The safety requirements for Permanently Con­nected Equipment say:

- a switch or circuit-breaker shall be included in
the building installation;

- It shall be in close proximity to the equipment
and within easy reach of the operator;

- it shall be marked as the disconnecting device
for the equipment.

12

13

COMMON

11

B'/B

B/B'

A/A'

A'/A

M
A
S
T
E
R

I
N
S
T
R
U
M
E
N
T

5

R (S,T)

R (S,T)

N

4

N

POWER LINE 100 V to 240 V A.C

(50/60Hz)

or 24 V AC/DC

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8

NOTE: a single switch or circuit-breaker can drive
more than one instrument.

9) When the NEUTRAL line is present, connect it
to terminal 4.

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9

PRELIMINARY HARDWARE
SETTINGS

1) Remove the instrument from its case.

2) It is necessary to set J106 according to the

desired input type as shown in the following figure.

INPUT J106

TYPE 1-2 3-4 5-6 7-8 9-10

TC-RTD open close open open open

60 mV open close open open open

5 V close open close open open

10 V open open close open open

20 mA open open open close close

NOTE : the not used jumper can be positioned on
pin 7-9

OPEN INPUT CIRCUIT

This instrument is able to identify the open circuit
for TC and RTD inputs.
The open input circuit condition for RTD input is
shown by an "overrange" indication.
For TC input, it is possible to select overrange
indication (standard) or underrange indication set­ting the CH101 and SH101 according to the follow­ing table:

Overrange (STD) CH101 = close SH101 = open
Underrange CH101 = open SH101 = close

Both pads are located on the soldering side of the
CPU card

Fig. 14

Fig. 13

1 3 5 7 9

2 4 6 8 10

J106

V101

CH101

SH101

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10

GENERAL NOTES for configuration.

FUNC = This will memorize the new value of

the selected parameter and go to the
next parameter (increasing order).

MAN = This will scroll back the parameters

without memorization of the new value.

s = This will increase the value of the

selected parameter

t = This will decrease the value of the

selected parameter.

CONFIGURATION PROCEDURE

1) Remove the instrument from its case.

2) Set the dip switch V101to the open condition

(see fig. 13).

3) Re-insert the instrument.

4) Switch on the instrument.

The display will show COnF.

NOTE : If "CAL" indication is displayed, press
immediately the s pushbutton and return to
the configuration procedure.

5) Push the FUNC pushbutton.

SEr1 = Serial interface protocol

OFF = No serial interface
Ero = Polling/selecting ERO
nbUS = Modbus
jbUS = Jbus

SEr2 = Serial link device address

Not available when SEr1 = OFF
From 1 to 95 for ERO protocol.
From 1 to 255 for all the other protocols.
NOTE: the electrical characteristic of the RS 485
serial interface allows you the connection of 31
devices maximum.

SEr3 = Baude rate for serial link

Not available when SEr1 = OFF
From 600 to 19200 baud.

NOTE: 19200 baud is shown on display as 19.2.

SEr4 = Byte format for serial link

Not available when SEr1 = OFF
7E = 7 bits + even parity (For ERO protocol only)
7O = 7 bits + odd parity (For ERO protocol only)
8E = 8 bits + even parity
8O = 8 bits + odd parity
8 = 8 bits no parity

P1 - Input type and standard range

0 = TC type L range 0 / +400.0 °C
1 = TC type L range 0 / +900 °C
2 = TC type J range-100.0 / +400.0 °C
3 = TC type J range -100 / +1000 °C
4 = TC type K range-100.0 / +400.0 °C
5 = TC type K range -100 / +1370 °C
6 = TC Type T range-199.9 / +400.0 °C
7 = TC type N range -100 / +1400 °C
8 = TC type R range 0 / +1760 °C
9 = TC type S range 0 / +1760 °C
10 = RTD type Pt 100 range-199.9 / +400.0 °C
11 = RTD type Pt 100 range -200 / +800 °C
12 = mV Linear range 0 / 60 mV
13 = mV Linear range 12 / 60 mV
14 = mA Linear range 0 / 20 mA
15 = mA Linear range 4 / 20 mA
16 = V Linear range 0 / 5 V
17 = V Linear range 1 / 5 V
18 = V Linear range 0 / 10 V
19 = V Linear range 2 / 10 V
20 = TC type L range 0 / +1650 °F

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11

21 = TC type J range -150 / +1830 °F
22 = TC type K range -150 / +2500 °F
23 = TC type T range -330 / +750 °F
24 = TC type N range -150 / +2550 °F
25 = TC type R range 0 / +3200 °F
26 = TC type S range 0 / +3200 °F
27 = RTD type Pt 100 range-199.9 / +400.0 °F
28 = RTD type Pt 100 range -330 / +1470 °F
NOTE: selecting P1 = 0, 2, 4, 6, 10 or 27, the
instrument set automatically P39 = P40 = FLtr.
For all the remaining ranges it will set P39 = P40
= nOFL.
If a different selection is desired, P39 and P40
may be modified, after executed P1 configuration.

P2 = Decimal point position

This parameter is available only when a linear
input is selected (P1 = 12, 13, 14, 15, 16, 17, 18
or 19).

----. = No decimal figure.

---.- = One decimal figure.

--.-- = Two decimal figures.

-.--- = Three decimal figures.

P3 = Initial scale value

For linear inputs it is programmable from -1999 to

4000.

For TC and RTD input, it is programmable within
the input range.
When this parameter is modified, rL parameter
will be re-aligned to it.

P4 = Full scale value

For linear inputs it is programmable from -1999 to

4000.

For TC and RTD input it is programmable within

the input range.
When this parameter is modified, rH parameter
will be re-aligned to it.
The initial and full scale values determine the
input span which is used by the PID algorithm,
the SMART and the alarm functions.

NOTE: the minimum input span (S = P4 - P3), in
absolute value, should be set as follows:
For linear inputs, S

> 100 units.

For TC input with °C readout, S

> 300 °C.

For TC input with °F readout, S

> 550 °F.

For RTD input with °C readout, S

> 100 °C.

For RTD input with °F readout, S

> 200 °F.

P5 = Output 1 function

rEv = Out 1 is used as control output with

reverse action

dir = Out 1 is used as control output with direct

action

Pv.rt = Out 1 is used as analog retransmission of

the measured value (process variable)

SP.rt = Out 1 is used as analog retransmission of

the operative set point.

P6 = Output 1 type.

0-20 = output type 0 - 20 mA.
4-20 = output type 4 - 20 mA.

REVERSE ACTION DIRECT ACTION

t

Input

t

Output

t

Input

t

Output

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12

P7 = analog retransmission - initial scale
value.

Available only when P5 = Pv.rt or SP.rt.
It is programmable from -1999 to 4000.
The decimal point will be positioned as selected
with P2 parameter.

P8 = analog retransmission - full scale value.

Available only when P5 = Pv.rt or SP.rt.
It is programmable from -1999 to 4000.
The decimal point will be positioned as selected
with P2 parameter.

P9 = Output 2 function.

nonE = output not used.
rEv = Out 2 is used as control output with

reverse action.

dir = Out 2 is used as control output with direct

action.

AL1.P =it is used as Alarm 1 output and the

alarm 1 is programmed as process alarm.

AL1.b = it is used as Alarm 1 output and the

alarm 1 is programmed as band alarm.

AL1.d = it is used as Alarm 1 output and the

alarm1 is programmed as deviation alarm.

NOTE: If P9 has been changed to "rEv", the

cycle time (Cy2) will be forced to 15
seconds.
If P9 has been changed to "dir", the cycle
time (Cy2) will be forced to:

10 s when P22 is equal to "AIr"
4 s when P22 is equal to "OIL"
2 s when P22 is equal to "H2O".

P10 = Alarm 1 operating mode

Available only when P9 is equal to "AL1.P",
"AL1.b" or "AL1.d".
H.A. = High alarm (outside for band alarm) with

automatic reset (latched).

L.A. = Low alarm (inside for band alarm) with

automatic reset (latched).

H.L. = High alarm (outside band) with manual re-

set (latched).

L.L. = Low alarm (inside band) with manual reset

(latched).

P11 = Output 3 function

nonE = output not used.
rEv = Out 3 is used as control output with

reverse action.

dir = Out 3 is used as control output with direct

action.

AL2.P =it is used as Alarm 2 output and the alarm

2 is programmed as process alarm.

AL2.b = it is used as Alarm 2 output and the alarm

2 is programmed as band alarm.

AL2.d = it is used as Alarm 2 output and the alarm

2 is programmed as deviation alarm.

NOTES: 1) If P11 has been changed to "rEv", the

cycle time (Cy3) will be forced to 15
seconds.
If P11 has been changed to "dir", the
cycle time (Cy3) will be forced to:

10 s when P22 is equal to "AIr"
4 s when P22 is equal to "OIL"
2 s when P22 is equal to "H2O".

2) The relations among P5, P9 and P11
are shown by the following notes:

- one Out only can be configured as
"rEv" output.

- one Out only can be configured as
"dir" output.

- if no Output is configured as control
output the instrument will operate as
an indicator.

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13

P12 = Alarm 2 operating mode

Available only when P11 is equal to "AL2.P",
"AL2.b" or "AL2.d".
H.A. = High alarm (outside for band alarm) with

automatic reset (latched).

L.A. = Low alarm (inside for band alarm) with

automatic reset (latched).

H.L. = High alarm (outside band) with manual reset

(latched).

L.L. = low alarm (inside band) with manual reset

(latched).

P13 = Programmability of the alarm 2

threshold and hysteresis values

Available only when P11 is equal to "AL2.P",
"AL2.b" or "AL2.d".
OPrt = Alarm 2 threshold and hysteresis are

programmable in the operating mode.

COnF = Alarm 2 threshold and hysteresis are

programmable in configuration mode.

P14 = Alarm 2 threshold value

Available only when P11 is equal to "AL2.P",
"AL2.b" or "AL2.d" and P13 is equal to "COnF".
Range: For process alarm - within the range

limits.
For band alarm - from 0 to 500 units.
For deviation alarm - from -500 to 500
units.

P15 = Alarm 2 hysteresis value

Available only when P11 is equal to "AL2.P",
"AL2.b" or "AL2.d" and P13 is equal to "COnF".
Range: from 0.1% to 10.0 % of the range selected

with P3 and P4 parameters, or 1 LSD.

P16 = Threshold of the “Soft Start” function.

Threshold value in eng. units to initiate the "Soft
start" function (output power limiting) at start up.
Range : within the readout span.
NOTE: This threshold value will not be taken into
account when tOL = InF.

P17 = Safety lock

0 = No parameter protection. The device is

always in unlock condition and all parameters
can be modified.

1 = The device is always in lock condition and no

one of the parameters (exception made for
set points [SP, SP2] and manual reset of the
alarms) can be modified (for SMART status
see P30 parameter).

From 2 to 4999 = This combination number is a

secret value to be used, in run time (see nnn
parameter) to put the device in lock/unlock
condition.
For SP, SP2 and manual reset of the alarms,
the lock/unlock condition has no effect (for
SMART status see P30).

From 5000 to 9999 = This combination number is

a secret value to be used, in run time (see
nnn parameter) to put the device in lock/
unlock condition.
For SP, SP2, manual reset of the alarm, AL1,
AL2, the lock/unlock condition has no effect
(for SMART status see P30).

NOTE:when safety lock is selected, the secret

value can not be displayed again and the
display will show 0, 1, SFt.A (when P17 is
encompassed between 2 and 4999) or SFt.b
(when P17 is encompassed between 5000
and 9999)

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14

The configuration procedure is completed and the
instrument shows "

-.-.-.-. " on both

displays.
If no other setting is necessary, push the FUNC
pushbutton, the display returns to show "COnF".
Otherwise access to the advanced configuration
parameter proceeding as follows:

1) using s and t pushbuttons to set the 262

code on the display.

2) push the FUNC pushbutton.

P18 = Main control output action

This parameter is skipped if none of the outputs is
configured as control output.
nOrL = the power output is equal to the result of

PID calculation.

CnPL = the power output is complemented (100 -

PID calculation).

P19 = Displayed value of the main power

output

This parameter is skipped if none of the outputs is
configured as control output.
nOrL = the displayed value is equal to the result

of PID calculation.

CnPL = the displayed value is complemented

(100 - PID calculation).

P20 = Secondary control output action

This parameter is available only when two control
outputs are configured.
nOrL = the power output is equal to the result of

PID calculation.

CnPL = the power output is complemented (100 -

PID calculation).

P21 = Displayed value of the power output

for the secondary control output

This parameter is available only when two control
outputs are configured.
nOrL = the displayed value is equal to the result

of PID calculation.

CnPL = the displayed value is complemented

(100 - PID calculation).

NOTE: when two control outputs are configured, the

P18 and P19 selections are applied to the "rEv"
control output while P20 and P21 selections are
applied to the "dir" control output.

P22 = Cooling media.

Available only when the device is configured with
two control outputs.

AIr = Air is used as cooling media.
OIL = Oil is used as cooling media.

H2O = Direct water is used as cooling media.
Changing P22 parameter, the instrument forces
the cycle time and relative cooling gain param­eters to the default value related with the chosen
cooling media
When P22 = AIr - Cyx = 10 s and rC = 1.00

P22 = OIL - Cyx = 4 s and rC = 0.80

P22 = H2O - Cyx = 2 and rC = 0.40
Where Cyx is the cycle time(Cy2 or Cy3) of the
out programmed as "dir" control output.

P23 = Relative cooling gain calculated by

SMART function.

Available only when device is configured with two
control outputs.
OFF = SMART algorithm does not calculate the

rC parameter value

On = SMART algorithm calculates the rC

parameter value.

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15

P24 = Alarm 1 action

Available only when P9 = "AL1.P", "AL1.d" or
"AL1.b".
dir = direct action (relay energized in alarm condi-

tion)

rEV = reverse action (relay de-energized in alarm

condition)

P25 = alarm 1 stand-by (mask) function

Available only when P9 = "AL1.P", "AL1.d" or
"AL1.b".

OFF = stand-by (mask) function disabled

On = stand-by (mask) function enabled
NOTE: If the alarm is programmed as band or
deviation alarm, this function masks the alarm
condition after a set point change or at the
instrument start-up until the process variable
reaches the alarm threshold plus or minus
hysteresis. If the alarm is programmed as a
process alarm, this function masks the alarm
condition at instrument start-up until the process
variable reaches the alarm threshold plus or
minus hysteresis.

P26 = Alarm 2 action

Available only when P11 = "AL2.P", "AL2.d" or
"AL2.b".
dir = direct action (relay energized in alarm

condition)

rEV = reverse action (relay de-energized in alarm

condition)

P27 = Alarm 2 stand-by (mask) function

Available only when P11 ="AL2.P", "AL2.d" or
"AL2.b".

OFF = Stand-by (mask) function disabled

On = Stand-by (mask)function enabled

NOTE: for more details to stand-by (mask) function,
see P25 parameter.

P28 = OFFSET adjustment added to the

measured value

This parameter allows to set a constant OFFSET
throughout the readout range.
It is skipped for linear inputs

- For readout ranges with decimal figure, P28 is
programmable from -19.9 to 19.9.

- For readout ranges without decimal figure, P28
is programmable from -199 to 199.

P29 = Displayable protected parameters

This parameter is skipped when P17 = 0.
OFF = Protected parameters cannot be displayed.
On = Protected parameter can be displayed.

P30 = SMART function

This parameter is skipped when none of the
outputs is programmed as control output.
0 = SMART function disabled.
1 = SMART function is NOT protected by safety

lock.

2 = SMART function is under safety lock protection.

Real curve

Readout

Adjusted
curve

Input

P28

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16

2 = the instrument starts in the same way it was

left prior to power shut down but if the
instrument was in manual mode, it will restart
with a power output equal to 0.

3 = the instrument starts in the same way it was

left prior to power shut down but if the
instrument was in manual mode, it will restart
with the same power output it had prior to
power shut down.

P36 = Timeout selection

This parameter allows to set the time duration of
the timeout for parameter setting used by the
instrument during the operating mode.
tn. 10 = 10 seconds
tn. 30 = 30 seconds

P37 = Conditions for output safety value

This parameter is skipped when none of the
outputs is programmed as control output.
0 = No safety value (see "Error Messages")
1 = Safety value is applied when overrange or

underrange condition is detected.

2 = Safety value is applied when overrange

condition is detected.

3 = Safety value is applied when underrange

condition is detected.

P38 = Output safety value

This parameter is skipped when none of the
outputs is programmed as control output or
P37 = 0.
This value can be set

- from 0.0 to 100.0 % when the device is
configured with one control output only.

- from -100.0 % to 100.0 % when the device is
configured with two control outputs.

P31 = Maximum value of the proportional band

calculated by the SMART algorithm.

This parameter is skipped when none of the
outputs is programmed as control output or
P30=0.
This parameter is programmable from P32 value
to 200.0 %.

P32 = Minimum value of the proportional band

calculated by the SMART algorithm.

This parameter is skipped when none of the outputs
is programmed as control output or P30=0.
It is programmable from 1.0% to P31 value.

P33 = Minimum value of the integral time

calculated by the SMART algorithm.

This parameter is skipped when none of the
outputs is programmed as control output or
P30=0.
It is programmable from 00.01[mm.ss] to 02.00
[mm.ss].

P34 = MANUAL function

This parameter is skipped when none of the
outputs is programmed as control output.

OFF = manual function is disabled
On = manual function can be enabled/

disabled by MAN pushbutton.

P35 = Device status at instrument start up.

This parameter is skipped when none of the outputs
is programmed as control output or P34=OFF.
0 = the instrument starts in AUTO mode.
1 = the instrument starts in MANUAL mode with

power output set to 0.

1604-7-1-AB.p65 5/16/00, 10:50 AM16

17

NOTE: when the instrument detects an out of

range condition, it assignes the P38 value to
the PID output but P18 and P20 parameter are
still active.

P39 = Digital filter on the displayed value

It is possible to apply to the displayed value a
digital filter of the first order with a time constant
equal to :

- 4 s for TC and RTD inputs

- 2 s for linear inputs
nOFL. = no filter
FLtr = filter enabled

P40 = Digital filter on the retransmitted value

This parameter is available only if P5 = PV.rt.
It is possible to apply to the retransmitted value a
digital filter of the first order with a time constant
equal to :

- 4 s for TC and RTD inputs

- 2 s for linear inputs
nOFL. = no filter
FLtr = filter enabled

P41 = Control action type

This parameter is skipped when none of the
outputs is programmed as control output.
Pid. = The process is controlled by PID action.
Pi. = The process is controlled by PI action.

P42 = Extension of the anti-reset-wind up

Range: from -30 to +30 % of the proportional
band.
NOTE: a positive value increases the high limit of
the anti-reset-wind up (over set point) while a

negative value decreases the low limit of the anti­reset-wind up (under set point).

P43 = Set point indication

Fn.SP = during operative mode, when the

instrument performs a ramp, it will show
the final set point value.

OP.SP =during operative mode, when the

instrument performs a ramp, it will show
the operative set point.

P44 = Operative set point alignment at

instrument start up

0 = At start up, the operative set point will be

aligned to SP or SP2 according to the digital
input status.

1 = At start up, the operative set point will be

aligned to the measured value, the selected
set point value will be reached by the
programmed ramp (see Grd1 and Grd2

operative parameters).
NOTE: if the instrument detects an out of range
or an error condition on the measured value it will
ever operate as described for P44 = 0.

The configuration procedure is terminated and the
display returns to show "COnF".

1604-7-1-AB.p65 5/16/00, 10:50 AM17

18

OPERATIVE MODE

1) Remove the instrument from its case.

2) Set the internal dip switch V101 in closed condi­tion

3) Re-insert the instrument.

4) Switch on the instrument.

DISPLAY FUNCTION

The upper display shows the measured value
while the lower display shows the programmed
set point value (we define the above condition as
“normal display mode”).
NOTE : When the rate of change (Grd1, Grd2) is

utilized, the displayed set point value may

be different from the operating set point.
It is possible to change the information on the
lower display as follows:

- Push FUNC pushbutton for more than 3

seconds but less than 10 seconds.
The lower display will show " r. " followed by
the power value of the OUT programmed as
"rEV" control output (from 0.0 to 100.0%

*).

- Push FUNC pushbutton again. The lower display

will show "d." followed by the power value of the
OUT programmed as "dir" control output (from

0.0 to 100.0%

*).

* The graphic symbol " . " means 100%.

- Push FUNC pushbutton again. The display will

return in "Normal Display Mode".
NOTE : The two power outputs are displayed only if
the relative function has been previously configured.

When no pushbutton is pressed during the time
out (see P36), the display will automatically return
in "Normal Display Mode".
In order to keep the desired information
continuously on the lower display, depress s or
t push-button to remove the timeout.

When return in "Normal Display Mode" is desired,
push FUNC push-button again.

INDICATORS

°C Lit when the process variable is shown in

Celsius degrees.

°F Lit when the process variable is shown in

Fahrenheit degrees.

SMRT Flashing when the first part of the SMART

algorithm is active.
Lit when the second part of the SMART
algorithm is active.

OUT1 It will flash with a duty cycle proportional

to the linear output value.

OUT2 Lit when OUT 2 is ON or alarm 1 is in the

alarm state.

OUT3 Lit when OUT 3 is ON or alarm 2 is in the

alarm state

Other functions are shown by decimal points:

REM = Flashing, when the instrument is

controlled via serial link.

SP2 = Flashing at slow rate when SP2 is used.

Flashing at fast rate when a set point from
serial link is used.

MAN= Flashing at slow rate, when the instrument

is in MANUAL mode.

REM

SP2
MAN

1604-7-1-AB.p65 5/16/00, 10:50 AM18

19

Pushbutton functionality during operating mode.

FUNC = o when the instrument is in "normal

display mode"

1)with a brief pressure (<3s) it starts
the parameter modification
procedure.

2)with a pressure within 3s to 10s it
changes the indication on the lower
display (see "display function").

3)with a pressure longer than 10s it
enables the lamp test (see "Lamp
Test" paragraph).

o During parameter modification, it

allows to memorize the new value of
the selected parameter and go to the
next parameter (increasing order).

MAN = pressed for more than 1 s, it allows to

enable or disable the manual function
and, during parameter modification,
to scroll back the parameters without
memorizing the new setting.

s = o During parameter modification, it

allows to increase the value of the
selected parameter.

o During MANUAL mode, it allows to

increase the output value.

t = o During parameter modification, it

allows to decrease the value of the
selected parameter.

o During MANUAL mode, it allows to

decrease the output value.

s+MAN = During parameter modification they

allow to jump to the maximum
programmable value.

t+MAN = During parameter modification they

allow to jump to the minimum
programmable value.

NOTE: a 10 or 30 seconds time out (see P 36)
can be selected for parameter modification during
run time mode.
If, during operative parameter modification, no
pushbutton is pressed for more than 10 (30)
seconds, the instrument goes automatically to the
“normal display mode” and the eventual
modification of the last parameter will be lost.

ENABLE/DISABLE THE CONTROL OUTPUT

When the instrument is in "normal display mode",
by keeping depressed for more than 5 s s and
FUNC pushbuttons, it is possible to disable the
control outputs. In this open loop mode the device
will function as an indicator, the lower display will
show the word OFF and all control outputs will
also be in the OFF state (the output is also
conditioned by P18 and P20 parameters).
When the control outputs are disabled the alarms
are also in non alarm condition.
The alarms output conditions depend on the
alarm action type (see P24-P26).
Depress for more than 5 s s and FUNC
pushbuttons to restore the control status.
The alarm stand-by function, if configured, will be
activated as if it was at power up.
If a power down occures when the control output
is disabled, at instrument power up the control
output will be automatically disabled.

SP - SP2 SELECTION

It is possible to select the operating set point (SP
or SP2) only by an external contact (terminals 14
and 15).
By setting P43, it is possible to display the final or
the operative set point during a ramp execution.

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20

DIRECT ACCESS TO SET POINT

When the device is in AUTO mode and in “Normal
Display Mode”, it is possible to access directly to
set point modification (SP or SP2).
Pushing s or t for more than 2 s, the set point
will begin changing.
The new set point value becomes operative since
no pushbutton has been depressed at the end of
2 s timeout.

MANUAL FUNCTION

The MANUAL function can be accessed (only if
enabled by P34=On) by depressing the MAN
pushbutton for more than 1 sec.
The command is accepted and executed only if
the display is in "Normal Display Mode".
When in MANUAL mode the LED's MAN
annunciator will light up while the lower display
shows the power output values.
The value of "rEV" is shown in the two most signifi­cant digit field while the value of "dir" (if present) is
shown in the two less significant digit field.
The decimal point between the two values will be
flashing to indicate instrument in manual mode.
NOTE :

- A graphic symbol "

" is used for "rEV"= 100

- A graphic symbol " " is used for "dir"= 100

The power output can be modified by using s
and t pushbuttons.
In manual mode the output resolution is equal to 1%.

By depressing, for more than 1 second, MAN
pushbutton the device returns in AUTO mode.

The transfer from AUTO to MANUAL and
viceversa is bumpless (this function is not
provided if integral action is excluded).
If transfer from AUTO to MANUAL is performed
during the first part of SMART algorithm (TUNE)
when returning in AUTO the device will be forced
automatically in the second part of the SMART
algorithm (ADAPTIVE).
At power up the device will be in the AUTO mode
or as it was left prior to power shut down
depending on P35 configuration selection.
NOTE:When start up occurs in Manual mode with
power output set to 0, the control outputs will be
in accordance with the following formula: "rEV"
output - "dir" output = 0

LAMP TEST

When it is desired to verify the display efficiency,
push FUNC pushbutton for more than 10 s. The
instrument will turn ON, with a 50 % duty cycle,
all the LEDs of the display (we define this function
"LAMP TEST").
No time out is applied to the LAMP TEST.
When it is desired to come back to the normal
display mode, push FUNC pushbutton again.
During the LAMP TEST the instrument continues
to control the process but no keyboard functions
are available (exception made for the FUNC
pushbutton).

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21

SERIAL LINK

The device can be connected to a host computer
by a serial link.
The host can put the device in LOCAL (functions
and parameters are controlled via keyboard) or in
REMOTE (functions and parameters are
controlled via serial link).
The REMOTE status is signalled by the decimal
point (labelled REM) at the right hand of the LSD
of the upper display.
This instrument allows to modify the operative
and configuration parameters, via serial link.
The necessary conditions to implement this
function are the following:

1) Serial parameters from SEr1 to SEr4 should be
properly configured using the standard front
keyboard procedure

2) Device must be in the OPERATING mode

During the downloading of configuration the
device goes in open loop with all output in OFF
state.
At the end of configuration procedure, the device
performs an automatic reset and then returns to
close loop control.

SMART function

It is used to optimize automatically the control
action.
To enable the SMART function, push the FUNC
pushbutton until "Snrt" parameter is shown.
Pushing s or t set the display "On" and push
the FUNC pushbutton.
The SMRT LED will turn on or flashing according
to the algorithm selected.
When the smart function is enabled, it is possible to
display but not to modify the control parameters.

To disable the SMART function, push the FUNC
pushbutton again until "Snrt" parameter is shown.
Pushing s or t set the display "OFF" and
push the FUNC pushbutton.
The SMRT LED will turn off.
The instrument maintains the actual set of control
parameters and it enables parameter modifica­tion.
NOTES : 1) When ON/OFF control is pro-

grammed (Pb=0), the SMART
function is disabled.

2) The SMART enabling/disabling can
be protected by safety key (see
P30).

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22

When it is desired to switch from LOCK
to UNLOCK condition, set a value equal
to P17 parameter.
When it is desired to switch from
UNLOCK to LOCK condition, set a value
different from P17 parameter.

AL1 Alarm 1 threshold

This parameter is available only if P 9 is
equal to AL1.P, AL1.b or AL1.d.
Ranges:

- Span limits for process alarm.

- From 0 to 500 units for band alarm.

- From -500 to 500 units for deviation
alarm.

HSA1 Alarm 1 hysteresis

This parameter is available only if P 9 is
equal to AL1.P, AL1.b or AL1.d.
Range:From 0.1% to 10.0% of the input
span or 1 LSD.
Note: If the hysteresis of a band alarm is
larger than the alarm band, the instrument
will use an hysteresis value equal to the
programmed band minus 1 digit.

AL2 Alarm 2 threshold

This parameter is available only if P 11
is equal to AL2.P, AL2.b or AL2.d and
P13 = OPrt.
For other details see AL1parameter.

HSA2 Alarm 2 hysteresis

This parameter is available only if P 11
is equal to AL2.P, AL2.b or AL2.d and
P13 = OPrt.
For other details see HSA1parameter.

Pb Proportional band

Range: from 1.0% to 200.0% of the input
span.
When Pb parameter is set to 0, the
control action becomes ON-OFF.

OPERATIVE PARAMETERS

Push the FUNC pushbutton, the lower display will
show the code while the upper display will show
the value or the status (On or OFF) of the
selected parameter.
By s or t pushbutton it is possible to set the
desired value or the desired status.
Pushing the FUNC pushbutton, the instrument
memorizes the new value (or the new status) and
goes to the next parameter.
Some of the following parameter may be skipped
according to the instrument configuration.

Param. DESCRIPTION

SP Set point (in eng. units).

Range: from rL to rH.
SP is operative when the logic input is
open.

Snrt SMART status.

The On or OFF indication shows the
actual status of the SMART function
(enabled or disabled respectively).
Set On to enable the SMART function.
Set OFF to disable the SMART function.

n.rSt Manual reset of the alarms.

This parameter is skipped if none of the
alarms has the manual reset function.
Set On and push FUNC to reset the alarms.

SP2 Set point 2 (in eng. units).

Range: from rL to rH.
SP2 is operative when the logic input is
closed.

nnn Software key for parameter

protection.
This parameter is skipped if P17 = 0 or 1
On = the instrument is in LOCK condition
OFF = the instrument is in UNLOCK
condition

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23

Note:When device is working with
SMART algorithm the Pb value will be
limited by P31 and P32 parameters.

HyS Hysteresis for ON/OFF control action

This parameter is available only when
Pb=0.
Range: from 0.1% to 10.0% of the input
span.

ti Integral time

This parameter is skipped if Pb=0 (ON/
OFF action).
Range: from 00.01 to 20.00 [mm.ss].
Above this value the display blanks and
integral action is excluded.
Note: When the device is working with
SMART algorithm, the minimum value of
the integral time will be limited by P33
parameter.

td Derivative time

This parameter is skipped if Pb=0 (ON/
OFF action) or P41 = Pi.
Range:From 00.00 to 10.00 mm.ss.
Notes: When device is working with
SMART algorithm the td value will be
equal to a quarter of ti value.

IP Integral pre-load

Ranges:

- from 0.0 to 100.0 % of the output span
if device is configured for one control
output.

- from -100.0 to 100.0 % of the output
span if device is configured for two
control outputs.

Cy2 Output 2 cycle time

This parameter is available only if P9 is
equal to rEv or dir.
Range:From 1 to 200 s.

Cy3 Output 3 cycle time

This parameter is available only if P11 is
equal to rEv or dir.
Range:From 1 to 200 s.

rC Relative Cooling gain.

This parameter is available only when
device is configured with two control
outputs and Pb is different from zero or
device is in manual mode.
Range: from 0.20 to 1.00
Note: When the device is working with
SMART algorithm and P23 is set to On
the RCG value is limited in accordance
with the selected type of cooling media:

- from 0.85 to 1.00 when P22 = AIr

- from 0.80 to 0.90 when P22 = OIL

- from 0.30 to 0.60 when P22 = H2O

OLAP Dead band/Overlap between H/C

outputs.
This parameter is available only when
device id configured with two control
outputs and Pb is different from zero or
device is in manual mode.
Range: from -20 to 50 % of the
proportional band.
A negative OLAP value shows a dead
band while a positive value shows an
overlap.

rL Set point low limit

Range: from initial scale value (P3) to
rH.
Note: When P3 has been modified, rL
will be realigned to it.

rH Set point high limit

Range:from rL to full scale value (P4).
Note: When P4 has been modified, rH
will be realigned to it.

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24

Grd1 Ramp applied to an increasing set

point change

Range: from 1 to 100 digits per minute.
Above this value the display shows “InF”
meaning that the transfer will be done as
a step change.

Grd2 Ramp applied to a decreasing set

point changes

For other details see Grd1 parameter.

OLH Output high limit

Range:

- From 0.0 to 100.0 % of the output span
when device is configured with one
control output.

- From -100.0 to 100.0% of the output
span when device is configured with two
control outputs.

tOL Time duration of the output power

limiter (soft start)

Range: from 1 to 540 min. Above this
value the display shows “InF” meaning
that the limiting action is always on.
Note: The tOL can be modified but the
new value will become operative only at
the next instrument start up.

rnP Control output max. rate of rise

This parameter is available only when
Pb is different from zero or one control
output is a linear output type.
Range: From 0.1 % to 25.0 % of the
output span/second. Above this value
the display shows “InF” meaning that no
limit is imposed.
Note:the rnP parameter is active on a
linear control output even if the device is
in ON/OFF control mode.

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25

ERROR MESSAGES

OVERRANGE, UNDERRANGE AND
SENSOR LEADS BREAK INDICATIONS

The device is capable to detect a fault on the
process variable (OVERRANGE or
UNDERRANGE or SENSOR LEADS BREAK).
When the process variable exceeds the span
limits established by configuration parameter P 1
an OVERRANGE condition will be shown on
display as show in the following figure:

An UNDERRANGE condition will be shown on
display as show in the following figure:

When P37 is equal to 0, the following conditions
may occur:

- The instrument is set for one output only and if
an OVERRANGE is detected, the output turns
OFF (if reverse action) or ON (if direct action).

- The instrument is set for heating/cooling action
and an OVERRANGE is detected, "rEV" output
turns OFF and "dir" output turns ON.

- The instrument is set for one output only and if
an UNDERRANGE is detected, the output turns
ON (if reverse action) or OFF (if direct action).

- The instrument is set for heating/cooling action
and an UNDERRANGE is detected, "rEV"
output turns ON and "dir" output turns OFF.

When P37 is different from zero and an out of
range condition is detected, the instrument
operates in accordance with P37 and P38
parameters.

NOTE: in every cases, the P18 and P20
parameters will conditioned the real outputs of the
instrument.

The sensor leads break can be signalled as:

- for TC/mV input : OVERRANGE or
UNDERRANGE selected by
a solder jumper

- for RTD input : OVERRANGE

- for mA/V input : UNDERRANGE

NOTE : For mA/V input the leads break can be
detected only when the range selected has a zero
elevation (4/20 mA or 1/5 V or 2/10 V)
For RTD input a special test is provided to signal
OVERRANGE when input resistance is less than
15 ohm (Short circuit sensor detection).

ERROR MESSAGES

The instrument performs same self-diagnostic
algorithm.
When an error is detected, the instrument shows
on the lower display the “Err” indication while the
upper display shows the code of the detected
error.

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26

ERROR LIST

SEr Serial interface parameter error.
100 Write EEPROM error.
150 CPU error.
200 Tentative to write on protected

memory.

201 - 2xx Configuration parameter error. The

two less significant digits shown the
number of the wrong parameter (ex.
209 Err shows an Error on P9

parameter)
299 Error on control output selection.
301 Selected input calibration error
307 RJ input calibration error
320 Analog retransmission calibration

error.
400 Control parameters error
500 Auto-zero error
502 RJ error
510 Error during calibration procedure.

NOTES

1) When a configuration parameter error is

detected, it is sufficient to repeat the configura­tion procedure of the specified parameter.

2) If error 400 is detected, push contemporarily

the t and s pushbuttons for loading the
default parameters then repeat control
parameter setting.

3) For all the other errors, contact your supplier.

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27

GENERAL INFORMATIONS

GENERAL SPECIFICATIONS
Case: Polycarbonate grey dark color; self-extin-

guishing degree: V-0 according to UL 94.
Front protection - designed and tested for IP 65 (*)
and NEMA 4X (*) for indoor locations (when panel
gasket is installed).
(*) Test were performed in accordance with CEI 70­1 and NEMA 250-1991 STD.

Installation: panel mounting.
Rear terminal block: 15 screw terminals ( screw

M3, for cables from f 0.25 to f 2.5 mm

2

or from
AWG 22 to AWG 14 ) with connection diagrams
and safety rear cover.
Dimensions: DIN 43700 48 x 48 mm,
depth 122 mm.

Weight: 250 g.
Power supply:

- 100V to 240V AC 50/60Hz (-15% to + 10% of the
nominal value).

- 24 V AC/DC (

+ 10 % of the nominal value).
Power consumption: 6 VA max.
Insulation resistance: > 100 MW according to
IEC 1010-1.
Dielectric strength: 1500 V rms according to IEC
1010-1.

Display updating time: 500 ms.
Sampling time: 250 ms for linear inputs

500 ms for TC and RTD inputs.

Resolution: 30000 counts.
Accuracy:

+ 0,2% f.s.v.. + 1 digit @ 25 °C

ambient temperature.

Common mode rejection: 120 dB @ 50/60 Hz.
Normal mode rejection: 60 dB @ 50/60 Hz.
Electromagnetic compatibility and safety
requirements: This instrument is marked CE.

Therefore, it is conforming to council directives
89/336/EEC (reference harmonized standard

EN 50081-2 and EN 50082-2) and to council
directives 73/23/EEC and 93/68/EEC (reference
harmonized standard EN 61010-1).

Installation category: II
Temperature drift: (CJ excluded)

< 200 ppm/°C of span for mV and TC ranges 1, 3, 5,
7, 20, 21, 22, 24.
< 300 ppm/°C of span for mA/V
< 400 ppm/°C of span for RTD range 11, 28 and
TC range 0, 2, 4, 6, 23.
< 500 ppm/°C of span for RTD range 10 and TC
ranges 8, 9, 25, 26.
< 800 ppm/°C of span for RTD range 27.

Operative temperature: from 0 to 50 °C.
Storage temperature : -20 to +70 °C
Humidity: from 20 % to 85% RH, non condensing.
Protections:

1) WATCH DOG circuit for automatic restart.

2) DIP SWITCH for protection against tampering
of configuration and calibration parameters.

INPUTS

A) THERMOCOUPLE
Type : L -J -K -N -R -S -T. °C/°F selectable.
External resistance: 100 W max, maximum error

0,1% of span.
Burn out: It is shown as an overrange condition
(standard). It is possible to obtain an underrange
indication by cut and short.
Cold junction: automatic compensation from 0 to
50 °C.

Cold junction accuracy : 0.1 °C/°C
Input impedance: > 1 MW
Calibration : according to IEC 584-1 and DIN

43710 - 1977.

1604-7-1-AB.p65 5/16/00, 10:50 AM27

28

STANDARD RANGES TABLE

B) RTD (Resistance Temperature Detector)
Input: for RTD Pt 100 W, 3-wire connection.
Input circuit: current injection.
°C/°F selection: via front pushbuttons or serial link.
Line resistance: automatic compensation up to

20 W/wire with no measurable error.

Calibration: according to DIN 43760
Burnout: up scale. NOTE: a special test is

provided to signal OVERRANGE when input
resistance is less than 15 W.

STANDARD RANGES TABLE

C) LINEAR INPUTS
Read-out: keyboard programmable between

-1999 and +4000.

Decimal point: programmable in any position.
Burn out: the instrument shows the burn out condi-

tion as an underrange condition for 4-20 mA, 1-5 V
and 2-10 V input types.
It shows the burn out condition as an underrange or
an overrange condition (selectable by soldering
jumper) for 0-60 mV and 12-60 mV input types. No
indication are available for 0-20 mA, 0-5 V and 0-10
V input types.

D) LOGIC INPUT

The instrument is equipped with one input from
contact (voltage free) for setpoint selection.
Contact open = Main setpoint.
Contact closed = Auxiliary setpoint.

NOTES

1) Use an external contact with a contact rating
better than 0.5 mA, 5 V DC.

2) The instrument needs 100 ms to recognize a
contact status variation.

3) The logic inputs are NOT isolated by the
measuring input.

Input

type

RTD Pt 100 W

DIN 43760

Ranges

10

11

27

28

T/C

type

L
L
J
J
K
K
T
N
R
S

Ranges

0
1
2
3
4
5
6
7
8
9

0 /+ 400.0°C
0 /+ 900 °C

-100.0/ + 400.0°C

-100 / + 1000 °C

-100.0/ + 400.0°C

-100 /+ 1370 °C

-199.9/ + 400.0°C

-100 /+ 1400 °C
0 /+ 1760 °C
0 /+ 1760 °C

20

21

22
23
24
25
26

---

0 / + 1650 °F

---

-150 / + 1830 °F

---

-150 / + 2500 °F

-330 / + 750 °F

-150 / + 2550 °F
0 / + 3200 °F
0 / + 3200 °F

- 199,9 / + 400,0 °C

- 200 / + 800 °C

-199,9 / +400,0 °F

-330 / + 1470 °F

Input type

12
13
14
15
16
17
18
19

0 - 60 mV

12 - 60 mV
0 - 20 mA
4 - 20 mA

0 - 5 V
1 - 5 V
0 - 10 V
2 - 10 V

impedance

> 1 MW

< 5 W

> 200 kW

> 400 kW

Accuracy

0.2 % + 1 digit
@ 25°C

1604-7-1-AB.p65 5/16/00, 10:50 AM28

29

SET POINTS

This instrument allows to use 2 set points: SP and
SP2.
The set point selection is possible only by logic
input.
Set point transfer:
The transfer between one set point to another (or
between two different set point values) may be
realized by a step transfer or by a ramp with two
different programmable rate of change (ramp up
and ramp down).

Slope value: 1 - 100 eng. unit/min or step.
Set points limiter: RLO and RHI parameters, pro-

grammable.

CONTROL ACTIONS

Control action: PID + SMART
Type: One (heating or cooling) or two (heating and

cooling) control outputs.
Proportional Band (Pb):
Range: - from 1.0 to 100.0 % of the input span for

process with one control output.

- from 1.5 to 100.0 % of the input span for
process with two control outputs.

When Pb=0, the control action becomes ON/OFF.
Hysteresis (for ON/OFF control action):
from 0.1% to 10.0% of the input span.

Integral time (Ti): from 1s to 20 min. or excluded.
Derivative time (Td): from 1 s to 10 min.

If zero value is selected, the derivative action is
excluded.
Integral pre-load:

- from 0.0 to 100.0 % for one control output

- from -100.0 (cooling) to +100.0 % (heating) for
two control outputs.

SMART: keyboard enabling/disabling
Auto/Manual: selectable by front pushbutton.
Auto/Manual transfer: bumpless method type
Indicator "MAN" : OFF in auto mode and lit in

manual mode.

OUTPUTS

Type: This instrument is equipped with 3

independent outputs programmable as follows:

Out 1 Out 2 Out 3

linear (mA) relay relay

Heating AL1 AL2
Heating Cooling AL2
Heating AL1 Cooling
Cooling AL1 AL2
Cooling Heating AL2

Cooling AL1 Heating
Retransm. Heating AL2
Retransm. AL1 Heating
Retransm. Cooling AL2
Retransm. AL1 Cooling
Retransm. Heating Cooling
Retransm. Cooling Heating
Retransm. AL1 AL2

Control output updating time :

- 250 ms when a linear input is selected

- 500 ms when a TC or RTD input is selected.
Action: direct/reverse programmable by front

keyboard.

Output level indication:

The instrument displays separately the output 1
level (heating) and the output 2 level (cooling).
Output status indication: the OUT 1 LED will
flash with a duty cycle proportional to the output 1
power. Two indicators (OUT 2 and/or OUT 3) are
lit when the respective output is in ON condition.

1604-7-1-AB.p65 5/16/00, 10:50 AM29

30

Output level limiter:

- For one control medium: from 0 to 100 % .

- For two control mediums: from -100 to +100 %.
This function may be operative at instrument start
up for a programmable time (To avoid thermal
shock and/or preheating the plant) otherwise it can
be enabled by an external contact.

OUTPUT 1
Type: optoisolated 0-20 mA or 4-20 mA

programmable.
Function: programmable as:

- control output (heating or cooling)

- retransm. of the measured value

- retransm. of the operative set point.

Scaling: programmable from -1999 to 9999.
Maximum load: 500 W.
Resolution:

- 0.1 % when used as control output.

- 0.05 % when used as analog retransmission.
Digital filter: it is possible to enable a digital filter,
on the output retransmission, with the same time
constant chosen for the read-out.

Output level indication (as control output only):

from 00.0 to 100.0 %.
Output status indication: the indicator OUT 1
flashes with a duty cycle proportional to the output
level.

OUTPUT 2
Type: relay SPST contact (NO or NC selectable

by jumper).

Contact rated: 2 A at 250 V AC on resistive load.
Function: programmable as:

- control output (heating or cooling)

- Alarm 1 output
Output cycle time (when used as control output)
programmable from 1 s to 99 s.

OUTPUT 3
Type: relay with SPST contact with rated current 2

A at 250 V AC on resistive load.
Function: programmable as:

- control output (heating or cooling)

- Alarm 2 output.
Output cycle time (when used as control output)
programmable from 1 s to 200 s.

ALARMS
Actions: Direct or reverse acting.
Alarm functions: each alarm can be configured

as process alarm, band alarm or deviation alarm.
Alarm reset: automatic or manual reset
programmable on each alarm.
Stand by (mask) alarm: each alarm can be
configured with or without stand by (mask)
function.
This function allows to delete false indication at
instrument start up and/or after a set point change.

Process alarm:
Operative mode : High or low programmable.
Threshold : programmable in engineering unit

within the input span.
Hysteresis: programmable from 0.1 % to 10.0 % of
the input span (P4 - P3), or 1 LDS.

Band alarm:
Operative mode: Inside or outside programmable.
Threshold : programmable from 0 to 500 units.
Hysteresis : programmable from 0.1 % to 10.0 % of

the input span or 1 LDS.

Deviation alarm

1604-7-1-AB.p65 5/16/00, 10:50 AM30

31

Operative mode : High or low programmable.
Threshold : programmable from - 500 to +500

units.
Hysteresis : programmable from 0.1 % to 10.0 % of
the input span or 1 LDS.

SERIAL COMMUNICATION INTERFACE
Type: RS-485
Protocol type: MODBUS, JBUS, ERO polling/

selecting.
Baud rate: programmable from 600 to 19200
BAUD.

Byte format: 7 or 8 bit programmable.
Parity: even, odd or none programmable.
Stop bit : one.
Address :

- from 1 to 95 for ERO protocol

- from 1 to 255 for all the other protocols

Output voltage levels: according to EIA standard.

MAINTENANCE

1) REMOVE POWER FROM THE POWER

SUPPLY TERMINALS AND FROM RELAY
OUTPUT TERMINALS

2) Remove the instrument from case.

3) Using a vacuum cleaner or a compressed air jet
(max. 3 kg/cm

2

) remove all deposit of dust and
dirt which may be present on the louvers and
on the internal circuits trying to be careful for
not damage the electronic components.

4) To clean external plastic or rubber parts use
only a cloth moistened with:

- Ethyl Alcohol (pure or denatured) [C

2H5

OH] or

- Isopropil Alcohol (pure or denatured)
[(CH

3)2

CHOH] or

- Water (H

2

O)

5) Verify that there are no loose terminals.

6) Before re-inserting the instrument in its case, be
sure that it is perfectly dry.

7) re-insert the instrument and turn it ON.

1604-7-1-AB.p65 5/16/00, 10:50 AM31

Appendix A.1

APPENDIX A
DEFAULT PARAMETERS

DEFAULT OPERATIVE PARAMETERS

The control parameters can be loaded with
predetermined default values. These data are the
typical values loaded in the instrument prior to
shipment from factory. To load the default values
proceed as follows:

a) The internal switch should be closed.
b) The SMART function should be disabled.
c) The upper display will show the process

variable while the lower display will show the
set point value.

d) the device must be in "UNLOCK"

and"LOCAL" conditions

e) Held down t pushbutton and press s

pushbutton; the display will show:

e) Press s or t pushbutton; the display will show:

g) Press FUNC pushbutton; the display will show:

This means that the loading procedure has been
initiated. After about 3 seconds the loading
procedure is terminated and the instrument
reverts to NORMAL DISPLAY mode.
The following is a list of the default operative
parame-ters loaded during the above procedure:

PARAMETER DEFAULT VALUE
SP = Minimum range-value
SnrT = Disabled
n.Srt = OFF
SP2 = Minimum range value
nnn = OFF
A1, A2 =Minimum range-value for

process alarms

0 for deviation or band alarms
HSA1, HSA2 = 0.1 %
Pb = 4.0 %
HyS = 0.5 %
ti = 4.00 (4 minutes)
td = 1.00 (1 minute)
IP = 30.0 for one control output

0.0 for two control outputs

Cy2 - Cy3 = 15 seconds

If two control outputs are

configured and OUT2 (OUT 3) is

configured as "dir", the default

value will be equal to:

10 seconds when P22 = AIr

4 seconds when P22 = OIL

2 seconds when P22 = H2O
rC = 1.00 for P22 = AIr

0.80 for P22 = OIL

0.40 for P22 = H2O
OLAP = 0
rL = Initial scale value
rH = Full scale value
Grd 1 = Infinite (step transfer)
Grd 2 = Infinite (step transfer)
OLH = 100 %
tOL = Infinite
rnP = 25.0 % /s.

O F F

d F L t

O N

d F L t

L O A d

1604-7-A-AB.p65 5/16/00, 10:50 AM1

Appendix A.2

DEFAULT CONFIGURATION PARAM­ETERS

The configuration parameters can be loaded with
predetermined default values. These data are the
typical values loaded in the instrument prior to
shipment from factory. To load the default values
proceed as follows:
a) The internal switch (V101, see fig. 13) should

be open.

b) The upper display will show:

c) Push the t pushbutton; the display will show

the firmware version.

d) Maintaining the pressure on the t pushbutton

push the s pushbutton also.
The instrument will show:

e) Press s pushbutton to select between table 1

(European) or table 2 (American) default set
of parameters; the display will show:

f) Press FUNC pushbutton; the display will show:

This means that the loading procedure has been
initiated. After about 3 seconds the loading
procedure is terminated and the instrument
reverts to visualization as in point b).

PARA. TABLE 1 TABLE 2

SEr 1 ErO ER0
SEr 2 1 1
SEr 3 19200 19200
SEr 4 7E 7 E
P1 3 21
P2 ----. ----.
P3 0 0
P4 400 1000
P5 rEV rEV
P6 0-20 0-20
P7 0 0
P8 400 1000
P9 nonE nonE
P10 H.A. H.A.
P11 nonE nonE
P12 H.A. H.A.
P13 OPrt. OPrt
P14 0 0
P15 0.1 0.1
P16 0 0
P17 0 0
P18 norL norL
P19 norL norL
P20 norL norL
P21 norL norL
P22 Air Air
P23 OFF OFF
P24 rEV rEV
P25 OFF OFF
P26 rEV rEV
P27 OFF OFF
P28 0 0

C O n F

C O n F

A. 0 0

O F F

d F L t

t b. 1

d F L t

L O A d

1604-7-A-AB.p65 5/16/00, 10:50 AM2

Appendix A.3

P29 On On
P30 2 2
P31 30.0 30.0
P32 1.0 1.0
P33 00.20 00.20
P34 On On
P35 0 0
P36 10 30
P37 0 0
P38 0.0 0.0
P39 nO.FL nO.FL
P40 nO.FL nO.FL
P41 Pid Pid
P42 10.0 10.0
P43 Fn.Sp Fn.Sp
P44 0 0

1604-7-A-AB.p65 5/16/00, 10:50 AM3

Appendix A.4

1604-7-A-AB.p65 5/16/00, 10:50 AM4

Appendix A.5

170.IU0.160.400

Chromalox

®

INSTRUMENTS AND CONTROLS

1382 HEIL QUAKER BOULEVARD

LAVERGNE, TN 37086-3536

PHONE [phone]

FAX [phone]

WIEGAND INDUSTRIAL DIVISIONWIEGAND INDUSTRIAL DIVISION

WIEGAND INDUSTRIAL DIVISIONWIEGAND INDUSTRIAL DIVISION

WIEGAND INDUSTRIAL DIVISION

EMERSON ELECTRIC CO.

1604-7-A-AB.p65 5/16/00, 10:50 AM5