Basler DECS-250 User Manual

9440300990 19-1
DECS-250 Typical Connections
19 • Typical Connections
Typical connection diagrams are provided in this chapter as a guide when wiring the DECS-250 for
communication, contact inputs, contact outputs, sensing, and operating power.
Typical connections for shunt powered applications are shown in Figure 19-1. Typical connections for
PMG powered applications are shown in Figure 19-2. Typical connections for station powered
applications are shown in Figure 19-3. Three-phase-delta voltage sensing connections are shown. The
drawing notes in Figure 19-1, Figure 19-2, and Figure 19-3 correspond to the descriptions found in Table
19-1. The Machine in Figure 19-1, Figure 19-2, and Figure 19-3 represents a generator when in generator
mode and a motor when in motor mode.
Note
Field wires, connected to terminals F+ and F–, must be twisted pair
with approximately one turn per inch for an EMC compliant installation.
Table 19-1. Typical Connection Drawing Descriptions
Locator
Description
1
Optional - ICRM (Inrush Current Reduction Module), Basler part number 9387900104.
2
Operating (bridge) power input. For single-phase power, omit one phase connection. See
Power Inputs or Specifications for operating power ratings.
Caution
For redundant applications with a single-phase, 300 Hz Marathon
PMG, only one DECS-250 can be connected to the PMG at a time. In
redundant applications, a contactor should be used for each DECS-
250 power input or equipment damage may occur.
3
Generator voltage sensing input. Potential transformer required if line voltage exceeds 600 Vac.
4
Cross-current compensation input, 1 Aac or 5 Aac.
5
Connections required only if voltage matching, sync-check, or auto synchronizer functions are used.
6
Labels indicate the functions assigned by the default programmable logic to the contact
inputs and output contacts.
7
See Power Inputs or Specifications for control power input ratings.
8
RS-232 port used for communication with another DECS in a redundant DECS system.
9
Optional communication port (style xxxxxxP) uses PROFIBUS protocol.
10
IRIG time synchronization input.
11
Ethernet communication port can be copper (style xxxxx1x) or fiber optic (style xxxxx2x) and
uses Modbus communication protocol.
12
Type B USB jack for temporary, local communication.
13
This input/output is unassigned by default if the DECS-250 is not equipped with the optional
PSS (style number xPxxxxx).
14
If the DECS-250 is providing one end of the J1939 bus, a 120-ohm, 0.5-watt terminating
resistor must be installed across terminals 96 (H) and 97 (L) for CAN 1 and 99 (H) and 100
(L) for CAN 2.
15
RS-485 port uses the Modbus RTU protocol for communication with other networked devices.

Basler DECS-250 Specifications

General

Brand	Basler
Model	DECS-250
Category	Control Systems
Language	English