Industrial Environment
DC/DC Converters < 40W
IMS6 Series
Safety and Installation Instructions
Installation Instruction
Installation of the DC-DC converters must strictly follow the
national safety regulations in compliance with the enclo-
sure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
Connection to the system shall be made via a printed circuit
board according to:
Mechanical Data.
The units should be connected to a secondary circuit.
Check for hazardous voltages before altering any connec-
tions.
Do not open the module.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also:
Safety
of operator accessible output circuit.
Table 12: Pin allocation for K pinout (option K)
Pin
1
2
10
11
12
13
15
24
Single output units
Vi+
n.c.
-
-
Vo–
Vo+
-
Vi–
Dual output units
Vi+
-
Go
Go
-
Vo–
Vo+
Vi–
Table 13: Pin allocation for SMD pinout (option M)
Pin
1
Single output units
Vi+
V i–
V i–
n.c.
n.c.
Vo–
Vo–
Vo+
Vo+
Vo+
Vo–
Vi+
Vi+
Vi-
Dual output units
Vi+
Vi–
Vi–
n.c.
Go
Vo–
Vo–
Vo–
Vo+
Vo+
Go
Vi+
Vi+
Vi+
Table 11: Pin allocation for standard industrial pinout
Pin
2
3
10
11
14
16
22
23
Single output units
Vi–
Vi–
n.c.
-
Vo+
Vo–
Vi+
Vi+
10013
Dual output units
Vi–
Vi–
-
Vo–
Vo+
Go
Vi+
Vi+
2
3
9
10
11
12
13
14
15
16
22
13
24
Bottom view
12
1
23
24
Fig. 22
Pin numbering
Input Fuse
To prevent excessive current flowing through the input sup-
ply line in case of a short-circuit across the converter input
an external fuse should be installed in a non earthed input
supply line. We recommend a fast acting fuse F0.5A
for 24 IMS 6 and F0.315A for 48 IMS 6 types.
Standards and approvals
All DC-DC converters are UL recognized according to UL
1950, UL recognized for Canada to CAN/CSA C22.2 No.
950-95 and LGA approved to IEC/EN 60950 standards.
The units have been evaluated for:
• Building in
• Supplementary insulation input to output, based on their
maximum input voltage
• The use in a pollution degree 2 environment
• Connecting the input to a secondary circuit which is sub-
ject to a maximum transient rating of 1500 V.
Safety of operator accessible output circuits
If the output circuit of a DC-DC converter is operator acces-
sible, it shall be an SELV circuit according to IEC/EN 60950
related safety standards
The insulation concept table below shows some possible
installation configurations, compliance with which causes
the output circuit of the DC-DC converter to be an SELV cir-
cuit according to IEC/EN 60950 up to a configured output
voltage (sum of nominal voltages if in series or +/– configu-
ration) of 46 V.
However, it is the sole responsibility of the installer to en-
sure the compliance with the relevant and applicable safety
regulations. More information is given in:
Technical Infor-
mation: Safety.
The DC-DC converters are subject to manufacturing sur-
veillance in accordance with the above mentioned UL,
CSA, EN and ISO 9001 standards.
Edition 1 06.00
POWER-ONE [ POWER-ONE ]
