saia-pcd.com
103
PCD
7L
2
HMI Visualization
and operating
1
Automation
stations
5
4
Cabinet
components
Consumption data
acquisition
3
Dedicated
room controller
Dedicated room controller
General data
Supply voltage
24 VAC / requires an external electrical series fuse
Temperature detection internal sensor NTC 10 kΩ / 0…40°C
Type of control
P or PI control
Communications interfaces
SBC S-Bus / RS-485 interface / data mode / 4800, 9600, 19200, 38400, 115200 bit/s with
automatic detection on restart. Bus termination resistors are installed by the customer - integrated
in the PCD7.L79xN and activated by the software.
Power consumption:
1.5 W without actuators
TRIAC output specification
24 VAC /800 mA maximum total current for both TRIAC
TRIAC direction of operation
Invertible direction of operation / default settings: Normally open
Output specification 0…10 VDC
0…10 VDC / max. load 2 mA
Housing
Plastic, white, surface installation, protection class IP20
Dimensions
84 × 117 × 31 mm (W × H × D)
Temperature range
5…45 °C, 80% r.H.
Product overview of the PCD7.L79xN series
Application examples:
Radiator/cooling ceiling, underfloor heating/cooling ceiling combination (or as individual units),
changeover operation (e.g. for cooling/heating ceiling)
PCD7.L790N
PCD7. L791N
PCD7. L792N
PCD7. L793N
I/O
Digital inputs
1× window contact and
1× multi-functional
1× window contact and
1× multi-functional
1× window contact and
1× multi-functional
1× window contact and
1× multi-functional
Digital outputs (PWM)
1 ×
Triac 24 VAC
2 ×
Triac 24 VAC
2 ×
Triac 24 VAC
2 ×
Triac 24 VAC
Analogue inputs
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---
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1 ×
0…10 VDC
Analogue outputs
---
---
---
2 ×
0…10 VDC
Integrated hardware
Internal temperature sensor
NTC 10 kΩ
NTC 10 kΩ
NTC 10 kΩ
NTC 10 kΩ
Setpoint value setting
---
---
Yes
Yes
Presence button with LED
---
---
Yes
Yes
Actuated valve types and drives
(Count of independent)
Digital output 24 VAC
1 ×
thermal valve
2 ×
thermal valve
or 1 ×
3-point valve
2 ×
thermal valve
or 1 ×
3-point valve
2 ×
thermal valve
or 1 ×
3-point valve
Analogue output 0...10 VDC
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---
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2 ×
0…10 VDC valves
or 1 ×
6-way valve
or 1 × VAV controller
Applications
2 pipes for heating, cooling or
changeover
Yes
Yes
Yes
Yes
2 × 2 pipes for heating, cooling
or changeover
---
Yes
Yes
Yes
4 pipes for heating and cooling
---
Yes
Yes
Yes
RIO
Yes
Yes
Yes
Yes
Manual and FBox library
Web code
scen13103
