E X P L O S I O N P R O O F
PA
PA
PA
5
5
5
6
6
6
7
7
7
8
8
8
10
10
10
9
9
1
1
1
11
11
2
2
2
12
12
13
13
3
3
3
4
4
4
PE
PE
PE
24 VAC/DC
24 VAC/DC
24 VAC/DC
+
~
+
~
+
~
−
~
−
~
−
~
ExReg-V300
SB 1.0
ExReg-V300-B
SB 1.2
ExReg-V300-A
SB 1.1
www.schischek.com
Schischek GmbH Germany, Mühlsteig 45, Gewerbegebiet Süd 5, 90579 Langenzenn, Tel. +49 9101 9081-0, Fax +49 9101 9081-77, E-Mail [email protected]
ExReg-V_en
V02 – 23-Sep-2016
ExReg-V...
Special options
...-CT
...-OCT ...-VA
...-OVA
The controller requires a 24 VAC/DC power supply on terminal 1(−/~) and 2 (+/~). Terminals
1 and 2 are internally connected to terminals 4 and 5 and supplies the control actuator.
(Note the actuator needs to initialize about 2 A starting current for max. 1 s). The actuator
is connected directly to the controller over terminals 4–8. If there is less than 1 meter
The ExReg-V300 is the basic version and can be used for the control of constant volumetric
flow rates (CAV) and variable flow rates of (VAV). The alarm contact (terminal 3) is used
as a feedback for normal operation, an analog feedback signal is not provided for these
devices.
The setpoint is adjusted via terminal 9. The voltage range for the minimum and maximum
flow rate is defined by a 2...10 V signal. A voltage value of about 12 V opens the damper
below 0.2 V the damper closes completely. During these forced control functions (damper
open / close) the controller is without function.
The CAV mode is configured in menu 2 by setting “CAV”. The CAV mode is activated
when the input voltage is not connected to terminal 9. In this case, the menu 7.2 “default”
set value is used as a flow. The force control functions (damper open / close) can be
applied by 0 V (close) and +24 V (open) to terminal 9. This can be done by connecting
the supply voltage level 0 V and 24 V with two relays.
The simple VAV operation in menu 2 configured via the setting “VAV”. This configuration
allows a modulation operation in a 2...10 V signal range. In the case of 2 V it is regulated
on the minimum value set in menu 5 “flow rate” and at 10 V to the maximum value. The
intermediate values are according to the voltage level (2...10 V) linearly as setpoints
available.
ExReg-V300-A is the standard version for the control of variable volume flow (VAV). The
alarm contact (terminal 3) is used as feedback for normal operation and, in addition, the
device has an analog output (terminal 11), which outputs the actual value as a continuous
signal, and an analog feedback of the actuator position (terminal 9). This feature is primarily
used for energy efficiency.
The setpoint is adjusted via terminal 13. The voltage range for the minimum and maximum
flow rate is defined as either of 0...10 V or 2...10 V.
In addition, the positive control function can be used depending on the setting in menu
6 “set point”. When the voltage value of about 12 V is exceeded the damper opens, when
it drops below 0.2 V the damper is completely closed. When utilising these force control
(damper open / close) the controller is without function. If the input is not connected, the
flow control defaults to the set value in menu 7.2.
AK: Alarm
contact
Yi: Setpoint actuator 4...20 mA
Ga: Ground
Y, GND
Uu: actual value actuator 0...10 V
Bus A1 Bus A2 Bus B1 Bus B2
24 V
AC/DC: Supply actuator
AK: Alarm
contact
Y
i
: Setpoint actuator 4...20 mA
Ga: Ground
Y, GND
U
U
: actual value actuator 0..10 V
U
U
: Feedback actuator 0...10 V
Ga: Ground
Y, GND
U
i
: actual value controller
0/2...10 V
Gr: Ground controller
U
S
: Setpoint controller
0/2...10 V
24 V
AC/DC: Supply actuator
Actuator
AK: Alarm
contact
Yi: Setpoint actuator 4...20 mA
Ga: Ground
Y, GND
Uu: actual value actuator 0...10 V
U
S
: Setpoint controller
0/2...10 V
Ga: Ground
Y, GND
24 V
AC/DC: Supply actuator
Actuator
Actuator
Galvanic Isolation 1,5 kV
Galvanic Isolation 1,5 kV
Galvanic Isolation 1,5 kV
Bus-Topologie
▪ There must be connected to a bus only point-to-point connections
▪ Star wiring is not permitted
▪ Each device works automatically as a repeater
Electrical Connection
distance between the controller and the actuator, the actuator may be connected directly
without the use of an additional terminal box. Otherwise please order terminal box (see ac-
cessories).
Attention: Before opening the terminal box cover, the supply voltage must be shut off!
3 / 8