Danfoss ISD Encoder Box, Руководство по эксплуатации, Страница: 20 / 44

5.5 Mechanical Installation
5.5.1 Earthing (Grounding) the Encoder Box
A dedicated PE line is required for the encoder box. Use
the faston connector on the rear of the encoder box to
earth (ground) the unit.
5.5.2 Mounting
CAUTION
Do not squash the PE line.
1. Hook the encoder box onto the DIN-rail.
2. Press the lower part of the encoder box onto the
DIN-rail until it clicks into place.
5.5.3 Demounting
1. Push the encoder box upwards to release it from
the DIN-rail.
2. Pull the encoder box towards you.
5.6 Electrical Installation
For the electrical connection, the relevant local and
national regulations must be observed in addition to the
information in these operating instructions.
5.6.1 Electrical Environmental Conditions
Compliance with the following electrical environmental
conditions is necessary to enable safe and effective
operation of the encoder box:
•
Mounting in a control cabinet
•
Suitable DC 24 V power supply unit (see chapter
5.6.2 24 V Power Supply Requirements )
•
PE line
•
Observe national statutory provisions
5.6.2 24 V Power Supply Requirements
The encoder box must be supplied with DC 24 V power
supply with the following properties:
•
Input range: DC 18–30 V
•
Overload protection (for 30 V) 33.3 V
•
Reverse voltage protection
•
A PTC ("Polyswitch") resistor can be used for over-
voltage protection and reverse voltage
protection; tripping current: 2.2 A
•
Power input: 110 mA current demand
NOTE
Use a 24 V power supply which is CE marked according to
the standards EN 61000-6-2 and EN 61000-6-4 or similar for
industrial use. The power supply can only be used for the
ISD system.
5.6.3 Connecting the CAN Cable
The CAN cable connects the encoder box to the ISD servo
system.
1. Assemble the CAN cable according to the
connector pin assignment in chapter
4.3.3 Connections
.
2. Lay the CAN cable according to the local
conditions.
3. Connect the CAN cable to the encoder box and
the connection box.
Use CAN line I if only 1 CAN line is being used.
Pay attention to the correct CAN cable number
when 2 CAN cables (for 2 connection boxes) are
being used.
Observe the connection diagrams in chapter
4.3 Connection Cable/Cabling .
5.6.4 Connecting the Encoder Cable
The encoder cable connects the encoder to the encoder
box.
1. Assemble the encoder cable according to the
connector pin assignment in chapter
4.3.3 Connections .
2. Lay the encoder cable according to the local
conditions.
3. Connect the encoder cable to the encoder box.
Installation/Fitting
VLT
®
ISD Encoder Box Operating Instructions
18 MG75F102 - VLT
®
is a registered Danfoss trademark
5 5