Encoder Connections; X3A Rs422/Ttl Incremental Encoder Input - KEB COMBIVERT F5 Instruction Manual

Installation and Connection
3.2 Encoder
Connections
3.2.1 X3A RS422/TTL
Incremental Encoder
Input
32
 ONLY when the inverter is switched off and the voltage
supply is disconnected may the feedback connectors
be removed or connected!
Connect the incremental encoder mounted on the motor to the 15-pin
Sub-D connector at X3A on the COMBIVERT F5M. This connection
provides speed feedback and is imperative to the proper operation of
the F5.
5 4 3 2
10 9 8 7
15 14 13 12
The internal voltage of "V
is a unregulated supply and will allow up
to 170 mA max. current draw, for X3A and
X3B total. If higher voltages / currents are
required, then an external power supply
must be provided.
The +5.2 V is a regulated voltage supply
generated from V
var
500 mA max. current draw, for X3A and
X3B total. If additional current is required
from the +5.2 V output, the current from
V decreases in accordance with following
var
formula:
5.2 V x I
I = 170 mA - –————
var
The following specifications apply to encoder interface X3A and X3B, channel
1 and 2 respectively:
• Max. operating frequency:
• Internal terminating resistance:
• RS422 or TTL level square wave
voltage level:
Input Wiring
A +
B +
approx.
approx.
34 Ω
A -
B -
1
6
11
" 24...30 V
(1)
var
and will allow up to
+5V
V
var
120 Ω
Pin No. Signal
3 A-
4 B-
8 A+
9 B+
11 V 24...30 V
var
12 +5.2 V
13 0V (com)
14 N-
15 N+
Shield Housing
300 kHz.
= 120 Ω
R
t
2...5 Vdc