NOTICE
All signals to the safety option must be PELV supplied and comply with EN IEC 60204.
Follow these guidelines to ensure proper wiring:
•
Use appropriate wiring to prevent short circuits to a supply line or between the inputs.
•
Use separate multi-core cable for supply voltage to avoid short circuits between the cable from the output (S37) and the 24 V DC
supply line.
•
Connect shields at both ends to the grounded enclosures through a good electrical connection and through a large surface area.
•
Connect cable shields as close as possible to the cabinet cable entry.
•
If possible, intermediate terminals should not interrupt cable shields.
•
Retain cable shields for both power cables and data cables using the appropriate EMC clamps. Ensure that the shield connection
for control cables has a low induction.
NOTICE
If short circuits and cross circuits can be expected with safety-related signals, and if they are not detected by upstream devices,
protected cable installation is required as per EN ISO 13849-2.
4.4.2 Connector Pin Assignment
Table 4: Connector Pin Assignment, VLT® Safety Option MCB 152
Pin
Name
Description
1
2
3
4
5
6
7
8
9
10
11
12
e
3
0
b
c
3
1
5
.1
1
1
DI1 A
Digital input 1 A channel
2
GND
Ground
3
DI1 B
Digital input 1 B channel
5
DI2 A
Digital input 2 A channel
6
GND
Ground
8
DI2 B
Digital input 2 B channel
9
GND
Ground
10
24 V
Power output
11
GND
Ground
12
S37
Safe output
Installation
Installation Guide | VLT®Safety Option MCB 152
AN327351953089en-000101 / 130R0578| 23
Danfoss A/S © 2020.02
Summary of Contents for MCB 152
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