moog
MSD Servo Drive DC-AC Operation Manual
34
Id.-No.: CA97554-001 Date: 06/2012
3.12.5 Connection for high-resolution encoders
Interface X7 enables evaluation of the following encoder types.
Fig.
Function
54321
10
9876
15
14
13
12
11
X7
Encoder/ SSI
Sin/Cos encoder with zero pulse
e.g. Heidenhain ERN1381, ROD486
Heidenhain Sin/Cos encoder with EnDat interface
e.g. 13 bit single-turn encoder (ECN1313.EnDat01) and 25 bit multi-turn encoder
(EQN1325-EnDat01)
Sin/Cos encoder with SSI interface
e.g. 13 bit single-turn and 25 bit multi-turn encoder (ECN413-SSI, EQN425-SSI)
Sick-Stegmann Sin/Cos encoder with HIPERFACE® interface
single- and multi-turn encoder, e.g. SRS50, SRM50
Table 3.10 Suitable encoder types on X7
NOTES:
•
The usage of encoders not included in the range supplied by Moog GmbH
requires special approval by Moog GmbH.
•
The maximum signal input frequency is 500 kHz.
•
Encoders with a power supply of 5 V ± 5 % must have a separate sensor
cable connection. The encoder cable detects the actual supply voltage at the
encoder, thereby compensating for the voltage drop on the cable. Only use
of the sensor cable ensures that the encoder is supplied with the correct volt-
age. The sensor cable must always be connected.
Select the cable type specified by the motor or encoder manufacturer, bearing in mind
the following:
•
Always use shielded cables. The shield is to be connected at both ends.
•
Connect the differential track signals A, B, R or CLK, DATA to each other via
twisted wires.
•
Do not separate the encoder cable, for example to route the signals via terminals in
the switch cabinet.
Fig.
X7
Pin
Sin/Cos
and TTL
Sin/Cos
Absolute
value encoder
SSI/EnDat
Absolute
value encoder
EnDat (digital)
Absolute
value encoder
HIPERFACE®
54321
10
9876
15
14
13
12
11
X7
Encoder/ SSI
1
A-
A-
-
REFCOS
2
A+
A+
-
+COS
3
+5 V DC ±5%, IOUT max = 250 mA (150 mA for
Hardware versions 0..1), monitoring via sensor
cable
7 to 12 V
(typ. 11 V)
max. 100 mA
The sum of the currents
drawn at X7/3 and
X6/4 must not exceed
the value given!
4
-
Data +
Data +
Data +
5
-
Data -
Data -
Data -
6
B-
B-
-
REFSIN
7
-
-
-
U
S
- Switch
8
GND
GND
GND
GND
9
R-
-
-
-
10
R+
-
-
-
11
B+
B+
-
+SIN
12
Sense +
Sense +
Sense +
U
S
- Switch
13
Sense -
Sense -
Sense -
-
After connecting pin 7
to pin 12 a voltage of
11.8 V is applied to X7,
pin 3!
14
-
CLK+
CLK+
-
15
-
CLK -
CLK -
-
Table 3.11 Pin assignment of connector X7
NOTE:
The encoder supply on X7/3 is short-circuit proof in 5 V and 11 V
operation. The drive remains in operation such that on the evaluation of
encoder signals a corresponding error message can be generated.
