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

Installation and Connection
3.2.2 X3A TTL Inc. Enc.
In Screw Terminals
GB
28
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 connec-
tion on the elevator drive .
The following specifications apply to encoder interface X3A, channel 1
• Max. operating frequency:
• Maximum cable length:
• Internal terminating resistance:
• RS422 or TTL level square wave
voltage level:
Input equivalent circuit
A +
B +
approx.
34 Ω
A -
B -
1 2 3 4 5 6 7 8
approx.
120 Ω
200 kHz.
50m (164 ft)
= 120 Ω
R
t
2...5 Vdc