KEPCO BOP-GL 1KW Operator Manual Firmware Ver.3.05 and higher - Manual (Page 50)

2-14
BOP-1K-GL 022814
acteristics; or where the dynamic output response of the power supply is critical to load perfor-
mance.
2.5.5 LOAD CONNECTION - GENERAL
Load connections require wires that are properly rated for the nominal output current of the unit.
Load connections to the BOP power supply are achieved via the OUTPUT and COMMON bus
bar-type terminals located on the rear panel. A barrier strip is provided at the rear panel for con-
nection of the sense wires to the load (for remote sensing or multiple unit applications).
CAUTION: Never connect the load to the sense terminals. Monitoring instruments (e.g.,
DVM, etc.) are the only external equipment that may be safely connected to
the sense terminals.
CAUTION: Never connect the BOP OUTPUT terminal (or the load terminal tied to the
OUTPUT terminal) to earth-ground. Otherwise, if the controlling device is
grounded, the BOP can be damaged by the protection limit output current
flowing inside the BOP along the programming signal return path.
CAUTION: Do not connect both the load and the programming device return (common)
to earth-ground potential. Otherwise, If the COMMON power connection
between the BOP and the load is lost, then the BOP can be damaged by out-
put current flowing inside the BOP along the programming signal return
path.
CAUTION: The safety features incorporated into the BOP to handle energy from Active
loads are unable to protect the power supply or the load if input power to the
BOP is lost or if the BOP Malfunctions. It is recommended that the user mon-
itor “Power OK” flag pins 3 and 4 of the external Protect Port (see Table 2-5)
and implement a fast-acting means of disconnecting capacitive loads or
crowbarring inductive loads to prevent damage to both the BOP and the load
in the event of input power loss.
NOTE: Regardless of output configuration, either local or remote output sense lines
must be connected for operation.
1. Observe Polarities: The OUT S sensing wire must be connected to the OUTPUT
load wire, and the COM S sensing wire must be connected to the COMMON load wire.
2. If local sensing is used, install links (see Figure 2-4).
2.5.6 LOAD CONNECTION USING LOCAL SENSING
Figure 2-4 shows a typical configuration using local sensing and a grounded load; for local
sensing with an isolated (“floating”) load, do not install the ground connection (see Figure 2-4,
Note 2).
2.5.7 LOAD CONNECTION USING REMOTE SENSING
Figure 2-5 shows a typical configuration using remote sensing and a grounded load; for remote
sensing with an isolated (“floating”) load, do not install the ground connection (see Figure 2-5,
Note 2).
Use #22 AWG wire, twisted pair for remote sense connections.