INSTALLATION OPERATION AND MAINTENANCE INSTRUCTION KBT002

KBT EC fans
KBT 225 EC
KBT 250 EC
10k
P1
RS A
KL3 KL2 KL1
RS B RS A RS B GND
0-10V
4-20mA +20V +10V
0-10V
0-10V
GND OUT L2 L3L1NO COM NC
12 11 10 9 8
7
6 5 4
3
2 1 2 133 2 1
A B C D E F G H
I J K
L M N O P Q R S
A. RS485 interface for ebmBUS; RS A
B. RS485 interface for ebmBUS; RS B
C. RS485 interface for ebmBUS; RS A
D. RS485 interface for ebmBUS; RS B
E. Ground
F. Control input
G. Control/Actual value input
H. Supply for external sensor, 20 VDC ((±20%) max. 50 mA)
I. Supply for external potentiometer 10 VDC ((+10%) max. 10 mA)
J. Control input
K. Ground
L. Master output 0–10 V max. 3 mA
M. Error signal relay, closed in case of error
N. Error signal relay, common (SA, 250 VAC)
O. Error signal relay, opened in case of error
P. Mains supply, phase
Q. Mains supply, phase
R. Mains supply, phase
S. Ground
12.3.3 Wiring diagrams for speed controller for AC motors
Note:
The selection of electrical accessories must be done in line with the technical parameters of the product.
RE
Manual 5-step transformer.
RE 1,5
N N N
RE 3 RE 5 RE 7
~ ~
DCBA
A. Relay connection. There is always 230 V between ~ and N when the transformer knob is in one of the positions 1–5.
B. Mains supply
C. Earth
D. Fan
16