Fagor nc-200 pb Installation Instruction
NC-200 PB - Installation Manual - Page: 13
2. CONNECTIONS AND CHARACTERISTICS
The connection for the RS-232 serial line (optional X1 connector) is not
described in this manual; but in a supplement for it.
described in this manual; but in a supplement for it.
2.1
CONNECTION OF THE FEEDBACK SYSTEMS
The feedback systems (scales or encoders) are connected via SUB-D HD type
15-pin female connectors: X3 and X4.
15-pin female connectors: X3 and X4.
Characteristics of feedback inputs: X3, X4 and X5:
-
+5V input consumption: 250 mA
-
Admits square-wave signal (TTL). (A, B, Io)
-
Maximum frequency: 250 KHz,
minimum separation between flanks: 950 nsec.
minimum separation between flanks: 950 nsec.
-
Phase shift 90º ±20º, hysteresis 0.25 V, Vmax 7V,
maximum input current: 3 mA.
maximum input current: 3 mA.
-
High threshold (logic state 1)
2.4V < V
IH
< 5V
-
Low threshold (logic state 0)
0.0V < V
IL
< 0.8V
* They depend on the type of feedback and may not be connected
1
Pin
Signal
Function
1
A
Feedback signals
2
/A *
3
B
4
/B *
5
Io
Reference signal
6
/Io *
7
Alarm
Feedback alarm
8
/Alarm *
9
+5V
Power for feedback
10
Not connected
Not being used at this time
11
0V
Power for feedback
12
Not connected
Not being used at this time
13
Not connected
Not being used at this time
14
Not connected
Not being used at this time
15
Chassis
Shield