General Purpose Input Output Module Mcb; Galvanic Isolation In The Mcb; Danfoss A/S © Rev. 2014-02-10 All Rights Reserved - Danfoss VLT AutomationDrive FC 300 Design Manual

Options and Accessories
9.2 General Purpose Input Output Module
MCB 101
MCB 101 is used for extension of digital and analog inputs
and outputs of FC 302. MCB 101 must be fitted into slot B
®
in the VLT
Contents:
•
MCB 101 option module
•
Extended fixture for the LCP
•
Terminal cover
MCB 101
General Purpose I/O
SW. ver. XX.XX
X30/ 1 2
9 9
Figure 9.2 MCB 101 Options Module

9.2.1 Galvanic Isolation in the MCB 101

Digital/analog inputs are galvanically isolated from other
inputs/outputs on the MCB 101 and in the control card of
the adjustable frequency drive.
Digital/analog outputs in the MCB 101 are galvanically
isolated from other inputs/outputs on the MCB 101, but
not from those on the control card of the adjustable
frequency drive.
If the digital inputs 7, 8, or 9 are to be switched by use of
the internal 24 V power supply (terminal 9), the connection
between terminal 1 and 5, which is illustrated in Figure 9.3
has to be established.
250
AutomationDrive.
FC Series
B slot
Code No. 130BXXXX
3 4 5 6 7 8 9
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
Design Guide
Control card (FC 100/200/300)
General Purpose
I/O option MCB 101
DIG IN
X30/
10 11 12
PLC
(PNP)
0 V
PLC
(NPN)
24 V DC
Figure 9.3 Principle Diagram
CPU
0 V
CPU
0 V
DIG &
ANALOG
RIN=
OUT
5k ohm
1 2 3 4 5 6 7 8
24 V DC
0 V
24 V
24 V
ANALOG
IN
RIN=
10k ohm
9 10 11 12
-0 to +10
VDC
-0 to +10
VDC
MG34S222