Control Terminals; Protection Against Contact - Lenze SMD Instructions D'installation Et De Mise En Service

STOP!
If the kVA rating of the AC supply transformer is greater than 10 times the input kVA rating of the drive(s),
an isolation transformer or 2-3% input line reactor must be added to the line side of the drive(s).
3.2.4

Control terminals

Data for control connections (printed in bold = Lenze setting)
Terminal
RS-485 serial communication input
71
RS-485 serial communication input
72
Reference potential
7
Analog input
8
0 ... 10 V (changeable under C34)
Internal DC supply for setpoint potentiometer
9
Internal DC supply for digital inputs
20
Digital input Start/Stop
28
Digital input configurable with CE1
E1
Activate fixed setpoint 1 (JOG1)
Digital input configurable with CE2
E2
Direction of rotation
Digital input configurable with CE3
E3
Activate DC injection brake (DCB)
Digital output configurable with c17
A1
Analog output configurable with c08 & c11
62
Relay output (normally-open contact)
K14
Configurable with C08
K12
Fault (TRIP)

Protection against contact

• All terminals have basic isolation (single insulating distance)
• Protection against contact can only be ensured by additional measures (i.e. double insulation)
STOP!
In the case of a Spinning Motor:
To bring free-wheeling loads such as fans to a rest before starting the drive, use the DC
injection braking function ("Auto-DCB"). Starting a drive into a freewheeling motor creates
a direct short-circuit and may result in damage to the drive.
Confirm motor suitability for use with DC injection braking.
Lenze 13466184 EDBSL03 v20 EN, DE, FR, IT, ES
Installation
RXB/TXB (B+)
RXA/TXA (A-)
input resistance: >50 kΩ
(with current signal: 250Ω)
+10 V, max. 10 mA
+12 V, max. 20 mA
LOW = Stop HIGH = Run Enable
HIGH = JOG1 active
LOW = CW rotation
HIGH = CCW rotation
HIGH = DCB active
DC 24 V / 50 mA; NPN
AC 250 V / 3 A
DC 24 V / 2 A ... 240 V / 0.22 A
LOW = 0 ... +3 V, HIGH = +12 ... +30 V
11