ABB MTAC-01, User Manual

Page: 15 / 28

15
Installation
Option B: Functional test. For this test:
• Temporarily, switch the drive to scalar mode [parameter 9904
MOTOR CTRL MODE = 3 (SCALAR:FREQ)], if not already
there.
• Run the drive in the forward direction.
• Verify that parameter 0147 MECH REVS is increasing in the
positive direction.
• If not, switch the A/A (or 1/1) connections.
Encoder output types
The following diagrams identify the typical encoder output types.
Push-pull Open collector
(sinking)
Open emitter
(sourcing)
V
CC
= Encoder input power supply voltage
R
L
= Load resistor at encoder output channel
OUT
V
CC
OUT
V
CC
R
L
OUT
V
CC
R
L