Technical data
CA05001001E For more information visit: www.eaton.com
51
PLC, I/O & Communications Products
May 2007
IT. Connect
Starter Network Adapters (SNAP) (D77B Series) — DeviceNet SNAP
DeviceNet Starter Network
Adapter Product (DSNAP)
Product Description
The Cutler-Hammer
®
DeviceNet Starter
Network Adapter Product (DSNAP)
from Eaton’s electrical business is a
front-mount device that serves as a
single node on DeviceNet, providing
communication capability, control and
monitoring to Intelligent Technologies
(IT.) Electromechanical Starters, as
well as the S751 and S752 Soft Start,
as listed in Tables 69 – 71.
The IT. DSNAP has an optional HANDS/
OFF/AUTO (HOA) module that enables
the starter to be operated in hand
mode; even if the DSNAP is not pow-
ered. The HOA option is used for cus-
tomers who need the extra security of
manual control in conjunction with the
communication capabilities of
DeviceNet.
With the addition of a D64 zero
sequence CT, the DSNAP can be
enabled to detect ground faults for
added protection.
Features
■ Communication to DeviceNet con-
suming one DeviceNet MAC ID
■ Manually set MAC ID and baud rate;
configuration using a software
application is not required for nor-
mal operation
■ Advanced configuration using
CH Studio
■ Includes pre-wired starter intercon-
nect cable and terminal adapter
Comprehensive Motor Data and
Control
■ RMS average current
■ % of operating FLA
■ % thermal memory
■ Integral contact position detection
■ Operating status and fault codes
■ At speed (soft starters)
■ START/STOP control
■ RUN/FORWARD-REVERSE control
■ Trip Reset
Extended Starter Capabilities
■ Ground fault detection (with
accessory)
■ Fault log
■ Overcurrent warning (adjustable)
■ Undercurrent warning (adjustable)
Figure 69. Typical DSNAP Application
Catalog Number D77B-DSNAP-X3
with 54 mm IT. Starter
IT. Starter
with
DSNAP
DeviceNet
Table 69. IEC SNAP Connectivity
Table 70. NEMA SNAP Connectivity
Table 71. S751/S752 SNAP Connectivity
Application Description
In a typical application, the DSNAP
front mounts to an IT. starter or soft
start. The DSNAP connects directly to
DeviceNet, allowing for control and
monitoring of the starter/soft start. A
PC or PLC serves as the central control
and scans the DSNAP for motor con-
trol and monitoring information. The
HOA module provides for the ability
to locate operators on the panel for
manual operation.
IEC E101, E501
Frame Size Continuous
Ampacity
Rating
45 mm B 18 Amp
25 Amp
32 Amp
54 mm C 40 Amp
50 Amp
76 mm D 65 Amp
85 Amp
100 Amp
105 mm E 125 Amp
160 Amp
200 Amp
140 mm F 250 Amp
315 Amp
420 Amp
NEMA N101, N501
Size Continuous Ampacity
Rating
00 9
0 18
1 27
2 45
3 90
4 135
5 270
S751/S752 Soft Start
54 mm All Sizes