SYLK™ I/O DEVICES
31-00028—02
2
DESCRIPTION
The Sylk IO devices are available in three models, as
described in Table 1.
Each device is programmable because the user chooses
which function blocks to use and how to connect them. It
is configurable because each function block has user-
defined behavior.
SPECIFICATIONS
General Specifications
Electrical
Rated Voltage:
20-30 Vac; 50/60 Hz
Power Consumption:
100 VA for Sylk IO device and all connected loads
Sylk IO Device Only Load (Excluding Digital Triac Out-
puts):
3 VA maximum (SIO12000), 4 VA maximum
(SIO4022), 5 VA maximum (SIO6042)
Environmental
Operating & Storage Temperature Ambient Rating:
Minimum -40° F (-40° C); Maximum 150° F (65.5° C)
Relative Humidity: 5% to 95% non-condensing
Digital Triac Output (DO) Circuits
Voltage Rating
: 20 to 30 Vac @ 50/60Hz
Current Rating: 25 mA to 500 mA continuous, and
800 mA (AC rms) for 60 milliseconds
Analog Output (AO) Circuits
Analog outputs can be individually configured for current
or voltage.
ANALOG CURRENT OUTPUTS:
Current Output Range: 4.0 to 20.0 mA
Output Load Resistance: 550 Ohms maximum
ANALOG VOLTAGE OUTPUTS:
Voltage Output Range: 0 to 10.0 Vdc
Maximum Output Current: 10.0 mA
Analog outputs may be configured as digital outputs and
operate as follows:
– False (0%) produces 0 Vdc, (0 mA)
– True (100%) produces the maximum 11 Vdc, (22 mA)
Universal Input (UI) Circuits
See Table 2 for the UI circuit specifications.
Table 2. Universal Input Circuit Specifications.
BEFORE INSTALLATION
The device is available in three models (see Table 1).
Review the power, input, and output specifications on
page 2 before installing the device.
— Hardware driven by Triac outputs must have a
minimum current draw, when energized, of 25 mA and a
maximum current draw of 500 mA.
— Hardware driven by the analog current outputs must
have a maximum resistance of 550 Ohms, resulting in a
maximum voltage of 11 volts when driven at 20 mA. If
resistance exceeds 550 Ohms, voltages up to 18 Vdc
are possible at the analog output terminal.
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or property
damage.
Disconnect power supply before beginning wiring
or making wiring connections to prevent electrical
shock or equipment damage.
INSTALLATION
The device must be mounted in a position that allows
clearance for wiring, servicing, and removal.
Table 1. Device Configurations.
Devices
UI
(Universal
Input)
DI
(Digital
Input)
AO
(Analog
Output)
DO
(Digital
Output)
SI06042
6
0
4
2
SI04022
4
0
2
2
SI012000
12
0
0
0
Input
Type
Sensor
Type
Operating
Range
Room/Zone
Discharge Air
Outdoor Air
Temperature
20K Ohm
NTC
-40° F to 199° F
(-40° C to 93° C)
Outdoor Air
Temperature
C7031G
a
a
C7031G and C7041F are recommended for use with
these controllers, due to improved resolution and accu-
racy when compared to the PT1000.
-40° to 120°F
(-40° to 49°C)
C7041F
a
-40° to 250°F
(-40° to 121°C)
PT1000
(IEC751
3850)
-40° F to 199° F
(-40° C to 93° C)
TR23
Setpoint
Potentiometer
500 Ohm
to
10,500 Ohm
-4° DDC to 4° DDC
(-8° DDF to 7° DDF)
or
50° F to 90° F
(10° C to 32° C)
Resistive Input Generic
100 Ohms
to
100K Ohms
Voltage
Input
Transducer,
Controller
0 - 10 Vdc
Discrete Input
Dry Contact
closure
Open Circuit
≥
3000Ohms
Closed Circuit <
3000Ohms
