Operating instructions
A3G990-AY28-01
Translation of the original operating instructions
4.5 Connection diagram
No.
Conn.
Designation
Function/assignment
KL 1
1
L1
Supply connection, power supply 3-phase 380-480 VAC, 50/60 Hz
KL 1
2
L2
Supply connection, power supply 3-phase 380-480 VAC, 50/60 Hz
KL 1
3
L3
Supply connection, power supply 3-phase 380-480 VAC, 50/60 Hz
PE
PE
Ground connection, PE connection
KL 2
1
NO
Status relay, floating status contact; make for failure
KL2
2
COM
Status relay, floating status contact; changeover contact; common connection; contact rating 250 VAC / max.
2 A (AC1) / min. 10 mA
KL2
3
NC
Status relay, floating status contact; break for failure
KL 3
1
RSA
Bus connection RS485, RSA, MODBUS-RTU; SELV
KL 3
2
RSB
Bus connection RS485, RSB, MODBUS-RTU; SELV
KL 3
3 / 10
GND
Reference ground for control interface; SELV
KL 3
4
Ain1 U
Analog input 1, set value: 0-10 V, Ri = 100 kΩ, adjustable curve, only usable as alternative to input Ain1 I;
SELV
KL 3
5
+ 10 V
Fixed voltage output 10 VDC, +10 V ±3%, max. 10 mA, short-circuit-proof power supply for external devices
(e.g. pot); SELV
KL 3
6
Ain1 I
Analog input 1, set value: 4-20 mA, Ri = 100 Ω, adjustable curve, only usable as alternative to input Ain1U;
SELV
KL 3
7
Din1
Digital input 1: enable electronics,
enable: pin open or applied voltage 5-50 VDC
disable: bridge to GND or applied voltage < 1 VDC
reset function: triggers software reset after a level change to < 1 VDC; SELV
KL 3
8
Din2
Digital input 2: Switching parameter sets 1/2, according to EEPROM setting, the valid or used parameter set
can be selected via bus or via digital input DIN2.
Parameter set 1: pin open or applied voltage 5-50 VDC
Parameter set 2: bridge to GND or applied voltage < 1 VDC; SELV
KL 3
9
Din3
Digital input 3: according to EEPROM setting, the integrated controller's direction of action can be selected as
normal/inverse via bus or digital input
normal: pin open or applied voltage 5-50 VDC
inverse: bridge to GND or applied voltage < 1 VDC; SELV
KL 3
11
Ain2 U
Analog input 2, measured value: 0-10 V, Ri = 100 kΩ, adjustable curve, only usable as alternative to input
Ain2I; SELV
KL 3
12
+ 20 V
Fixed voltage output 20 VDC, +20 V +25/-10%, max. 50 mA, short-circuit-proof power supply for external
devices (e.g. sensors); SELV
KL 3
13
Ain2 I
Analog input 2, measured value: 4-20 mA, Ri = 100 Ω, adjustable curve, only usable as alternative to input
Ain2U; SELV
KL 3
14
Aout
Analog output 0-10 VDC, max. 5 mA, output of current motor modulation level / motor speed
adjustable curve; SELV
Item no. 50438-5-9970 · ENU · Change 89187 · Approved 2016-04-14 · Page 9 / 12
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com
