Rockwell Automation 1395 Encoder Driver Module User Manual
Page 2
Encoder Driver Module
Instructions
2
Electrical Power Supply Input: 12 to 24 volts; 250 milliamperes
minimum current dependent on # of
outputs utilized.
Environmental: Ambient temperature rating: 0 to 40
°
C (32 to 104
°
F)
Relative Humidity: 5 to 95% non–condensing
Altitude: 3300 feet (1000m) without derating
Applications 1395 RTP DC Drive – The Encoder Driver Interface Module was
originally developed for Goss, GSD applications using the Bulletin 1395
RTP DC drive (Fig. 1). In this application, both the encoder used for drive
feedback, denoted Belt Speed Encoder, and the magnetic pickup, denoted
Press Speed Pick–up, are routed to a console side panel designed by Goss.
The signals are used for processing roll diameter information and for
setting up roll transferring operations. The signals that are brought out of
this CPTC panel for drive input are single ended, 0 to 5 volts in magnitude,
with severely limited current capability similar to a TTL gate output. The
Encoder Driver Interface Module is designed so that these voltage signals
can be changed to the proper impedance levels for the 1395 RTP digital
reference and digital feedback signals. In order for the module to provide
an improvement in noise immunity, it is recommended that the module be
physically located as close as possible to the voltage source of its input
signals (300 millimeters (1ft.) or less).
Belt Speed Encoder Feedback signals are connected as follows:
1. Encoder Channel A out of the RTP console (CPTC Board) is
connected to the AI1 channel (TB1–2).
2. Encoder Channel B out of the RTP console is connected to the BI1
channel (TB1–1).
3. Module outputs described previously for encoder 1 are directly
connected to the 1395 feedback encoder input terminals.
Figure 1.
1395 RTP DC Drive Application
TB1 TB2
Encoder Driver Interface Module
1
2
3
4
5
6
7
8
9
10
9
8
7
TB1
2
1
6
5
3
A
B
RTRN
Paster Panel CPTC Board
SHD
Belt Speed
Encoder
300 PPR
Press
Speed
Pickup
TB1
12VDC
HI
RTRN
SHD
To Power Supply
To Drive
Encoder
Feedback
Input
RTP
Adapter
Press
Speed
Reference
Input