Abb.
Pin Sin/Cos and
TTL
Sin/Cos
absolute
encoder,
SSI/EnDat
Absolute
encoder,
EnDat
(digital)
Absolute
encoder,
HIPERFACE®
5
4
3
2
1
10
9
8
7
6
15
14
13
12
11
X7
Encoder
1
A-
A-
-
REFCOS
2
A+
A+
-
+COS
3
+5 VDC ±5 %, IOUT maximum = 250 mA
(150 mA for hardware versions 0–1),
monitoring via sensor cable
1)
7 to 12 V (typ.
11 V) maximum
100 mA
1)
4
R+
Data +
Data +
Data +
5
R-
Data -
Data -
Data -
6
B -
B -
-
REFSIN
7
-
-
-
U
S
- Switch
2)
8
GND
GND
GND
GND
9
ϑ- (PTC, KTY, Klixon), internally connected to X6/9
3)
10
ϑ+ (PTC, KTY, Klixon), internally connected to X6/5
3)
11
B+
B+
-
+SIN
12
Sense +
Sense +
Sense +
U
S
- Switch
2)
13
Sense -
Sense -
Sense -
-
14
-
CLK+
CLK+
-
15
-
CLK -
CLK -
-
1) The total of the currents drawn at X7/3 and X6/4 must not exceed the specified
value!
2) After connecting pin 7 to pin 12, a voltage of 11.8 V will appear at X7, pin 3!
3) Observe the preceding CAUTION statement!
Table 6.4: Pin assignment X7 (
MSD Single-Axis Servo Drive Compact
)
MOOG
ID
No.:
CB40859-001
Date:
02/2018
MSD Servo Drive - Device Help
56
6 Encoder
6.5 Channel 1: Interface X7
Fig. 6.2: Channel Ch1 encoder configuration (interface X7) screen
This screen is used to select the encoder for channel Ch1. This channel uses the
encoder’s “main interface” to measure position changes periodically and add them
up cyclically – this is referred to as “cyclical evaluation”.
Encoders with a main interface that only makes it possible to measure the cyclical
position incrementally often feature an additional absolute value interface referred to
as an “auxiliary interface”. For this interface, the absolute position is measured once
during the initialization phase and is then used for absolute value initialization
purposes.