Operating instructions
R3G310-PG57-21
Translation of the original operating instructions
4.5 Connection diagram
Drawing preliminary!
No.
Conn.
Designation
Function/assignment
KL1
1, 2
L1/N
Supply connection, power supply; for nominal voltage range see technical data
PE
PE
PE
Ground connection, PE connection
KL2
1
NO
Status relay, floating status contact, make for failure
KL2
2
COM
Status relay, floating status contact, changeover contact, common connection, contact rating, max. 250 VAC/2
A (AC1)/min. 10 mA
KL2
3
NC
Status relay, floating status contact, break for failure
KL3
1
RSA
Bus connection RS485, RSA, MODBUS-RTU; SELV
KL3
2
RSB
Bus connection RS485, RSB, MODBUS-RTU; SELV
KL3
3
GND
Reference ground for control interface, SELV
KL3
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
KL3
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
KL3
6
Ain1 I
Analog input 1, set value: 4-20 mA, Ri = 100 Ω, adjustable curve, only usable as alternative to input Ain1 U;
SELV
KL3
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
KL3
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
Item no. 56026-5-9970 · ENU · Change 212555 · Approved 2020-04-29 · Page 10 / 15
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