REXROTH RD 500 Series, Руководство по применению

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4-44
Electrical Installation of Converter RD 500 RD51
DOK-RD500*RD51*******-IB04-EN-P
Terminal Designation Comment
X15 Motor temperature sensor
1 PTC / KTY+
2 PTC / KTY -
Connecting a motor temperature sensor (PTC or KTY84). When
connecting a KTY84, observe the correct polarity!
X16 Relay output
1 N / O contact
2 Common
contact
Relay output
Load capability: 250 V AC, 7 A
30 V DC, 7 A
3 N / C contact Contact-lifetime:
- 500.000 switching cycles at 7A (250V AC, resistive load, cos phi = 1)
- 7.600.000 switching cycles at 0,01 A (230 V AC, cos phi = 0.38)
X17 Digital inputs / incremental encoder
1 P15 V output
I
maxIGR
= 250 mA – (Number of digital outputs
(
11,4 mA)
When connecting the optional terminal strip expansion KL17037:
I
maxIGR
= 150 mA – (Number of digital outputs
(
11,4 mA)
2 Dig. input 6
encoder track A+
3 Dig. input 9
encoder track A-
4 Dig. input 7
encoder track B+
5 Dig. input 10
encoder track B-
6 Dig. input 8
encoder track R+
7 Dig. input 11
encoder track R-
Selectable function: Digital input / encoder (IGR)
The standard function of the terminal is a digital input.
Digital inputs without electrical isolation
Input current at 24 V: 8.6 mA
H signal: +13 V ... +33 V
L signal: –3 V ... +5 V or
open terminal
In the factory setting, the following applies
digital input 6: Function “ON”
digital input 7: Function “Operating enable”
digital input 8: Function can be selected using P0880
Connecting an incremental encoder with 15 V supply, two signal tracks, zero
signal track and the inverted track is possible
8 Dig. Ground P15V Reference ground, to +15 V (X17.1)
Tab.:4-11 Description of control terminals on SR17000
Providing the Reference Potential when Operating Serveral RD 500s
If devices of the RD 500 series are potentially connected with each other
and / or to an external control, a central connection must be established
between the reference ground and the PE. To do this, proceed as follows:
•
Disconnect the reference ground X14.7 – PE (housing) cable
connection from all converters / inverters (RD51, RD52, RS51)
•
Disconnect bridge X11.14 from X11.15 in the supply modules (RD41,
RD42)
•
Create a neutral point connection of all RD 500 reference grounds
(terminal X14.7 / X11.14 for each) using any existing PLC ground
•
Connect the reference ground neutral point to the PE, preferentially in
the PLC switch cabinet (if necessary, set the terminal)