Danfoss iC7 Series Operating Manual page 13

Encoder/Resolver Option OC7M0
Operating Guide
Table 6: Cable Specifications for Encoder/Resolver Option OC7M0
Cable type
Flexible/rigid wire without cable end sleeves
Flexible wire with cable end sleeves with collar
A standard RS485 interface supports cable lengths up to 1200 m depending on signal frequency and cable type. Consult the docu-
mentation for the respective encoder or resolver for details on allowed cable length.
4.8 Setup and Connection Examples for Encoder/Resolver OC7M0
4.8.1 Incremental Encoder
With TTL and HTL incremental encoder, the actual position is 0 after power-up, and encoder pulses are counted to increment or
decrement the actual position. For improved resolution with TTL and HTL encoders, both the positive and negative edge of A and B
pulses are detected giving 4 quad counts per encoder pulse.
Table 7: Parameters for Incremental Encoder
Parameter
9.4.1 Interface configuration
9.4.4 Encoder Supply Voltage
9.5.1 Resolution Device 1
Encoder supply + 17
Encoder supply GND
15
Track A+
18
Track A–
16
Track B+
14
Track B–
12
Plug detect + 13
Plug detect – 11
Illustration 2: Wiring Configuration for Incremental Encoder, 2 Differential Tracks (TTL, HTL)
Danfoss A/S © 2022.02
Cross section [mm
0.2–1.5 (26–16)
0.2–0.75 (26–18)
Setting
Set according to the type of connected encoder.
TTL/HTL with 2 tracks: Select [1] 2 track Incremental A, B.
TTL/HTL with 3 tracks: Select [3] 3 track Incremental A, B, Z.
Set the appropriate supply voltage for the connected encoder.
Voltage can be up to 24 V. Setting the voltage too high can damage the connected encoder.
Set the resolution of the encoder in pulses per revolution.
Encoder/Resolver Installation and
2
(AWG)] Minimum stripping length [mm (in)]
10 (0.4)
N O T I C E
AQ390830267692en-0001 / 136R0273 | 13
Configuration