Operating instructions

Absolute Rotary Encoders
95
Pepperl+Fuchs Inc. • 1600 Enterprise Parkway • Twinsburg, Ohio 44087-2245 • www.am.pepperl-fuchs.com
Telephone [phone] • FAX [phone] • E-Mail: [e-mail]
®
PEPPERL+FUCHS
Absolute Encoders PVS58/PVM58 Series
Programming
Installation
The rotary encoder is connected with two or three cables depending
on whether the power supply is integrated into the bus cable or
connected separately. If the power supply is integrated into the bus
cable, one of the cable glands can be plugged. The cable glands are
suitable for cable diameters from 5.5 to 9 mm.
The PROFIBUS device address is set via the two rotary switches
located within the removable housing cover. Any address from 1 to
99 is allowed but each can only be used once. Termination resistors
are integrated into the housing cover and must be switched on if the
encoder is connected at the beginning or end of the bus.
There are 2 sets of power supply terminals but it is only necessary to
connect power to one set. The outgoing bus lines are disconnected
if the terminating resistor is switched on.
On the back of the housing cover are 2 LEDs, which are used for
device status and diagnostics.
Parameter
Counting direction
Resolution per revolution
Total resolution
Preset value
Velocity
Software limit switches
Teach-in
Description
Determines the counting direction and whether the output code increases or decreases.
Programs the desired number of steps per revolution. Any value between 1 and 65,536 can be used.
Programs the desired number of steps over the total measuring range of the encoder. This value
cannot exceed the total physical resolution of the encoder.
A desired position value (i.e., 0) to be set at a certain physical position of the axis. The position value
is set to the desired process value via this parameter. This parameter is used to “zero” the encoder at
any time to start at a reference point.
The software can also output the current velocity. This value is given in a 16-bit binary code after the
process value. It is possible to choose between four different units: steps per 10 ms, per 100 ms, per
1 s and revolutions per minute.
Sets the minimum and maximum values. Two software limit switches can be set. If these values are
exceeded, a bit in the output word is set.
A special mode for setting up the encoder that changes parameters while the encoder transfers data.
For continuous operation a second mode is available in which parameters are protected against
unintentional changes.
ON
T
A
B
AB
-
x10
x1
+ - +
8
7
2
6
5
4
3
0
9 1
8
7
2
6
5
4
3
0
9 1
R
Termination resistor
Supply voltage
Data line A
Data line B
Bus In
Data line A
Data line B
Bus Out
Addressing
Supply voltage
RS-485 interface
PG9 PG9 PG9
Error indicator
LED red
Status indicator
LED green
Programmable Parameters
The PROFIBUS-DP interface supports Class 1 and Class 2
functionality per the encoder profile. In addition to these standard
functions, the GSD file supports additional features such as software
limit switches. The following parameters can be programmed directly
via the PROFIBUS-DP network without any extra devices:
LED Indicators
LED Red
Off
On
On
Flashing
On
Off
Off
LED Green
Off
On
Flashing
On
Off
On
Flashing
Meaning
No voltage supply.
Encoder ready, no configuration data received. Possible reasons:
• Wrong address adjusted
• Wrong bus wiring
Parameter or configuration error — encoder received data of incorrect length or inconsistent data.
Possible reason:
• Adjusted encoder resolution exceeded
Encoder ready, no communication (i.e. wrong address adjusted).
Data timeout (> 40 s) (i.e., data lines interrupted).
Normal operation, Data Exchange Mode.
Installation mode in Data Exchange Mode.
ON
T
A
B
AB
-
x10
x1
+ - +
8
7
2
6
5
4
3
0
9 1
8
7
2
6
5
4
3
0
9 1
R
Termination resistor
Supply voltage
Data line A
Data line B
Bus In
Data line A
Data line B
Bus Out
Addressing
Supply voltage
RS-485 interface
PG9 PG9 PG9
Error indicator
LED red
Status indicator
LED green