
Publication 4100-IN054B-EN-P - January 2001
2-4 Installation
Figure 2.3 4 Way EBU and ALEC
This diagram shows a system control encoder used in the stand-alone
mode and connected to the master input of the 4 Channel Encoder
Buffer Unit. One follower output is connected to the “Master Encoder”
input on a follower drive (this drive must be in the encoder follower
mode). With this arrangement, the follower encoder follows the
system control encoder, taking into account any gearing, etc.
configured in the drive.
4 Channel Encoder Buffer
+12V +5V
HEALTHY
P1
P2 P3 P4 P5 P6
MASTER
FLWR-1 FLWR-2 FLWR-3 FLWR-4
LK-Volts ENC VOLTAGE LK-DIR ENCODER DIRECTION
LK-5V-F1 LK-5V-F2 LK-5V-F3 LK-5V-F4
FOLLOWER POWER LK-5V-FX
24V DC Power
System Control Encoder
4 Channel Encoder Buffer Unit
QUALITY
ALEC
Fuse
Common
24V DC
Fault Power
Relay Input
Registration
Input
Incremental
Encoder Input
Encoder OK
AxisLink
1
2
AxisLink
Address
Mode
AL
CPU OK
Reset
12V/5V
Extd Node On/Off
Enc. Fault On/Off
Extd Length On/Off
Extd Term 1 On/Off
Extd Term 2 On/Off
123456
QUALITY
ALEC
Fuse
Common
24V DC
Fault Power
Relay Input
Registration
Input
Incremental
Encoder Input
Encoder OK
AxisLink
1
2
AxisLink
Address
Mode
AL
CPU OK
Reset
12V/5V
Extd Node On/Off
Enc. Fault On/Off
Extd Length On/Off
Extd Term 1 On/Off
Extd Term 2 On/Off
12
3
45
6
QUALITY
ALEC
Fuse
Common
24V DC
Fault Power
Relay Input
Registration
Input
Incremental
Encoder Input
Encoder OK
AxisLink
1
2
AxisLink
Address
Mode
AL
CPU OK
Reset
12V/5V
Extd Node On/Off
Enc. Fault On/Off
Extd Length On/Off
Extd Term 1 On/Off
Extd Term 2 On/Off
123456
QUALITY
ALEC
Fuse
Common
24V DC
Fault Power
Relay Input
Registration
Input
Incremental
Encoder Input
Encoder OK
AxisLink
1
2
AxisLink
Address
Mode
AL
CPU OK
Reset
12V/5V
Extd Node On/Off
Enc. Fault On/Off
Extd Length On/Off
Extd Term 1 On/Off
Extd Term 2 On/Off
123456
ALEC 1 ALEC 2 ALEC 3 ALEC 4
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