X3A Ttl Inc. Enc. In Screw Terminals - KEB COMBIVERT F5 Instruction Manual

3.2.2 X3A TTL Inc. Enc.
In Screw Terminals
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Installation and Connection
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 8 position
terminal connector at X3A. This connection provides speed feedback
and is imperative to the proper operation of the F5M.
Plug in screw
terminal X3A
Pos Signal Description
1 A+ TTL incremental encoder track A
2 A- Differential signal to A+
3 B+ TTL incremental encoder track B
4 B- Differential signal to B+
5 N+ TTL Zero track
6 N- Difference signal to N+
7 15/24 V Voltage output 15/20...30 V, power supply for the encoder,
switchable with dip switch S100
8 COM 0V reference for voltage supply
- GND connect the outer cable shield to an earth ground con-
nection on the elevator drive .
The following specifi cations apply to encoder interface X3A, channel 1
• Max. operating frequency:
• Maximum cable length:
• Internal terminating resistance:
• RS422 or TTL level square wave
voltage level:
Note: For 5V TTL encoders, a 5V supply is available on second interface,
X3B terminal 7.
If an incremental encoder does not have N+/N- tracks then the
corresponding inputs on the encoder interface card must be
jumpered high/low or the drive will trigger the error, E.ENC1. For
example, connect N+ (X3A.5 ) to 5V (X3B.7) and N- (X3A.6) to 0V
(X3A.8).
1 2 3 4 5 6 7 8
300 kHz.
50m (164 ft)
(RS422)
= 120 
R
t
2...5 Vdc