Vents VKV Series User Manual page 24

24
Wiring diagram of the VKV/VKH 500 EC fan
Terminal Connection
PE
KL1
KL2
KL3
PE Protective ground conductor
L3 Mains; L3
L2 Mains; L2
L1 Mains; L1
NC Signal-actuated relay, voltage-free signalling contact; error-triggered break contact
COM Status relay; dry signal contact for status message service; change-over contact, shared connection;
maximum contact closing current 250 VAC/max. 2 A (АС1)/min. 10 mA
NO Signal-actuated relay, voltage-free signal contact; error-triggered break contact
RSA RS485 connection; RSA; MODBUS RTU; PELV
RSB RS485 connection; RSB; MODBUS RTU; PELV
GND Control interface earthing PELV
Ain1 U Analogue input 1, pre-set value: 0-10 V, Ri=100 kOhm, parametrized curve; to be used only as Ain1 I
input alternative; PELV
+10 V Сonstant 10 VDC output + 10 V +/-3 %, max. 10 mA, with continuous short-circuit protection, supply
voltage for external devices (e.g. potentiometer); PELV
Ain1 I Analogue input 1, pre-set value: 4-20 mA, Ri=100 kOhm, parameterized curve; to be used only as Ain1
U input alternative; PELV
Din1 Digital input 1: electronic equipment activation, actuation: contact opening or application 5-50 VDC.
Blocking: current-carrying bridge to ground bus or application of < 1 VDC. Reset function: reset func-
tion enabled at voltage level change to < 1 VDC; PELV
Din2 Digital input 2: switching between parameter sets 1/2; after setting up EEPROM setup the valid pa-
rameter set or the currently used one can be selected either via the signal bus or DIN2 signal input.
Parameter set 1: contact opening or application 5-50 VDC. Parameter set 2: current-carrying bridge to
ground bus or application of < 1 VDC; PELV
Din3 Digital input 3: Integrated regulator polarity; according to the EEPROM settings the integrated regulator
polarity (i.e. direct/inverted) is selected via the signal bus or the digital input. Normal: contact opening
or application 5-50 VDC. Inverted: current-carrying bridge to ground bus or application of < 1 VDC; PELV
Ain2 U Analogue input 2, valid setting: 0-10 V, Ri=100 kOhm, parameterized curve; to be used only as Ain2 I
input alternative; PELV
+20 V Constant voltage output 20 VDC; +20 V +25/-10 %; Max. 50 mA; with continuous short-circuit protec-
tion; supply voltage for external devices (e.g. sensors), PELV
Ain2 I Analogue input 2, valid value: 4-20 mA, Ri=100 kOhm, parameterized curve; to be used only as Ain2 U
input alternative; PELV
Aout Analogue output 0-10 VDC; Max. 5 mA; output for the current motor operating cycle / current motor
rotation speed; parametrized curve, PELV
Function