ZIEHL-ABEGG Ucontrol PXDM Series, Руководство пользователя

Страница: 16 / 105

Handbook Ucontrol type-lines PXDM
Date 06/04
TBL02_55-GB06/04 Part.-No. 00153239-GB
Page 16 / 105
5.11 Connection of external Terminal type AXG-1A(E)
An external terminal is required for starting-up and setting-up versions that do not have an integrated terminal (model
series PXDM..(E)).
Model AXG-1A, Part-No. 349006 for manual operation
Model AXG1AE, Part-No. 349008 for panel mounting
The connection is made via a 4-strand line, e.g., telephone flex (e.g. J-Y (St) Y 2x2x0.6 (or similar)),
maximum line length ca. 250 m.
- Voltage supply: Terminal 24 V, GND, (I
max
for terminal ca. 50 mA)
- Signal D+ and D- (RS 485)
The data connector spring-loaded contact is suitable for solid conductors of up to 0.5 mm
2
cross-section or 0.8 mm
diameter. The stripped lead makes contact by itself upon insertion. The orange colored latch only needs to be pushed in
the case of smaller cross-sections or when detaching the connections.
5.12 Connection RS-485 interface for MODBUS
The device comes equipped via a RS-485 interface for networking via a MODBUS. The data connection lead is
connected to
D+, D- and GND .
When using an external AXG.. terminal, the interface is assigned and can not be employed for anything else.
You must ensure correct connection; i.e. „ D+ “ must also be connected on the following devices to
„ D+ “. The same applies to „ D- “.
In addition, a GND connection must be established, as dissimilar potential ( over 10 V !) will lead to the
destruction of the RS-485 interface (e.g. lightning).
The data line must be conducted from one device into the next. To do this, two connectors are
available in each device. No other type of wiring is allowed.
Always use only two wires of one lead for the connection.
When using telephone flex with four cable cores, we recommend the following allocation:
“
D+ “ = red “ D- “ = black “ GND“ = white
Examples:
A maximum of 247 network users can be connected to the data bus
Ucontrol
MODBUS
Ucontrol
M ODBUS