Advanced Energy HFV 8000, User Manual

Page: 38 / 142

4-2 Communication Interfaces 5705211-C
Advanced Energy
®
User Port Interface Cabling Requirements
Connect the HFV generator’s User port to the system controller with a shielded, 15-
wire I/O cable. Shielded twisted-pair wiring may be used but is not mandatory.
Minimize signal losses by keeping the cable as short as possible. The maximum
recommended cable length between the HFV generator and the controller is 10 meters
(33 feet). Minimize interference from adjacent electrical equipment by terminating the
EMI shield in the cable to the metal shells of the cable’s connectors. Additionally, you
must tie the chassis of the HFV generator to a local earth ground through an
adequately sized copper grounding strap.
Note: Grounding the User port at the HFV generator reduces noise interference. To
avoid ground loop problems, you should typically ground only one end of the
User port cable.
Generator User Port Pin Descriptions
Table 4-1 describes the connector pins for the Generator User port interface.
Table 4-1. Generator User port pin descriptions
Signal
Pin
Return
Pin
Signal Name Signal
Type
Description
1 +24 V
(user provided)
Used for DeviceNet isolation
2 6 REFLECTED
POWER OUTPUT Analog
output 0 V to 10 V = 0 W to 1000 W
(See Figure 4-2 on page 4-7 for an
electrical diagram.)
3 6 FORWARD/LOAD
POWER OUTPUT Analog
output 0 V to 10 V = 0 W to 8000 W
Forward power is represented
when forward power regulation is
selected. Load power is
represented when load power
regulation is selected.
To select regulation mode, see:
• Command 12 in Table 4-7 on
page 4-20
(See Figure 4-3 on page 4-7 for an
electrical diagram.)