Chapter 3 – Installation
3-2 RTAC-01 User’s manual
Terminal
designations
X1 Marking Description
10 V
Encoder power supply, either 15 or 24 V DC (according
to jumper selection on terminals 4, 5 and 6).
(0 V is also used with single-ended encoder connection
for balancing the A+, B+ and/or Z+ conductors. See
Figures 3-3 to 3-6.)
20 V
3V OUT
4 +15V
Encoder supply voltage selection:
Terminals 4 and 5 connected: 15 V (default)
Terminals 5 and 6 connected: 24 V
(Jumper is supplied with the RTAC module)
Max. 5 watts (see Power consumption below)
5V IN
6 +24V
Connected internally on the circuit board.
X2 Marking Description
1SHLD
Shield
For earthing of the encoder cable shields. Internally
connected to the frame.
2SHLD
3A+ A
• Max. signal frequency: 200 kHz
• Signal levels:
“1” > 7.6 V, “0” < 5 V (for 15 V supply)
“1” > 12.2 V, “0” < 8 V (for 24 V supply)
• Input channels isolated from the logic, power supply,
and earth
• When the drive runs in the Forward direction,
channel A should lead channel B by 90° (electrical)
• Channel Z: One pulse per revolution (used in
positioning applications only)
4A- A
5B+ B
6B- B
7Z+ Z
8Z- Z
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