saia-pcd.com
115
PCD
7L
Dedicated room controllers
5
Switch cabinet
components
4
Consumer
data acquisition
3
Dedicated
room controllers
2
Operation
and monitoring
1
Automation
stations
General specifications
Power supply
24 VAC / requires an external electrical back-up 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 / 4,800, 9,600, 19,200, 38,400, 115,200 bit/s with automatic
detection on restart. Bus terminating resistors are installed by the customer - integrated into 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
Direction of action invertible / default setting: 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% RH
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
---
---
---
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 independent)
Digital output 24 VAC
1 × thermal valve
2 × thermal valve
or 1 x 3-point valve
2 × thermal valve
or 1 x 3-point valve
2 × thermal valve
or 1 x 3-point valve
Analogue output 0…10 VDC
---
---
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2× 0…10 VDC valve or 1×
6-way valve or 1× VVS drive
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
