Controlli W500H, Руководство пользователя

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Rev. d 01/1 3 DMP052E
INTRODUCTION
The temperature and relative humidity controller for AHU is provided with four control loops, two
analogue with 0-10Vdc output loops and two on/off hysteresis with relay output loops with
exchange contact.
All loops have independent control parameters and set points.
All the four loops share the three sensors (control, compensation and limit) coming from:
- ST temperature control sensor
- SC compensation sensor
-
Relative humidity sensor, SH limit and/or compensation
The controller is also provided with two digital dry-contact inputs which can be used for outside
enable or summer/winter changeover functions.
Each loop can control its own output independently from the other using four different operating
modes.
The controller is characterized by a user interface composed of a 3 ½ digit FND display, of five
buttons and of twelve LEDs located on the front membrane.
Data on display depend on sensor presence and on enabling the various functions.
The controller is also provided with a two-wire local bus called “LinkBus”
Through the local bus port it is possible to connect up to 4 different devices with other devices of
the same W digital series with the purpose to share the sensor and the operating mode.
The local bus also allows the W500H to be supervised if at least one W500TMB or W500HMB is
connected.
The W500HMB version differs from the basic W500H for its on-board RS485 ModBus
communication interface and for the real time clock with daily and weekly schedules.
The W500HMB allows supervision for itself and for the other W500H or W500T devices (max 3)
connected to it through a LinkBus and shares with them the set time schedules.
NOTE: A pressure sensor on the analogue loop 2 or digital loop 2 can be used in place of the humidity
sensor.
Electrical connections
:
1 GND 13 230 Vac F (W500H/HMB)
or 24 Vac F (W500H4/HMB4)
2 SH 14 230 Vac N (W500H/HMB)
or 24 Vac N (W500H4/HMB4)
3 SC 15 Rel 1 CO
4 ST 16 Rel 1 NA
5 GND 17 Rel 1 NC
6 Di1 18 Rel 2 CO
7 Di2 19 Rel 2 NA
8 L 20 Rel 2 NC
9 LinkBus -
10 Bus 485 + 22 Ao1
11 Bus 485 – W500HMB 23 GND
12 GND 485 ONLY 24 Ao2
Legend:
ST : PTC temperature control sensor
SC : PTC outside compensation sensor
SH : 0-10Vcc humidity control sensor
U1 : User 1 (ex. Fan, circulation pump, on/off valve, etc.)
U2 : User 2 (ex. on/off humidifier, on/off damper, etc.)
S1 : 0 – 10 Volt proportional actuator
S2 : 0 – 10 Volt proportional actuator