Chromalox TEMPERATURE CONTROLLER 1604-7 Bedienungsanleitung
1604-7
Temperature Controller with mA Output
Issue date rUSER'S MANUAL
May 2000
Chromalox
1604
1604-7-0-AB.p65 5/16/00, 10:50 AM1
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
1604-7-0-AB.p65 5/16/00, 10:50 AM2
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
1604-7-1-AB.p65 5/16/00, 10:50 AM1
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)
1604-7-1-AB.p65 5/16/00, 10:50 AM2
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
1604-7-1-AB.p65 5/16/00, 10:50 AM3
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 Wfor 20 mA input
> 1 MWfor 60 mV input
> 200 kWfor 5 V input
> 400 kWfor 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
1604-7-1-AB.p65 5/16/00, 10:50 AM4
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 105at 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
3NO - 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 communica-
tion 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 Con-
nected 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
1604-7-1-AB.p65 5/16/00, 10:50 AM7
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