GE Industrial Solutions Pulsar Plus Controller - Manual (Page 78)

Pulsar Plus Controller Family
Issue 7 December 2011 78
Table 22 Float Settings Configuration
Very Low Voltage
Major Primary DC bus alarm threshold used to indicate an imminent system shutdown
due to discharging batteries or a very low output voltage (VLV).
Threshold is set from -40.00V to- 51.00V or +20.00 to +25.50V. Has a factory
default of -46.00V and +23.00V for 48V and 24V systems.
Shunt Monitors
The Pulsar Plus family of controllers utilize an RS485 serial communication link to external distribution
monitoring and control boards for shunt measurements and contactor control. Up to eight external boards
can be managed by the controller for shunt monitoring and contactor control. Thus, eight contactors can be
assigned to one of four independent controls: LVBD, LVLD1, LVLD2, and LVLD3. These distribution
monitoring and control boards are identified by setting an address ID at the board and then assigning
appropriate operation Type at the controller. The available Types are: Battery, Load, and None. Shunt sizes
for each assigned battery or load type must also be configured. All shunts are assumed to have a voltage
rating of 50mV. The current rating of each shunt is programmable between 0 to 9999A. Systems shipped
with the controllers are appropriately pre-configured in the factory for the right shunt values and
assignments.
Table 23 Shunt Monitors Configuration
Plant Shunt Type Definition type for the on-board shunt used for centralized plant architectures
that are designed with a single shunt to monitor load or battery current. The
on-board shunt monitor may be configured as “NONE”, “BATTERY”, or “LOAD”.
The factory default is None.
Plant Shunt Rating Current rating of the shunt being measured by the on-board shunt circuitry
used for centralized plant architectures. Shunts are assumed to have a 50mV
rating.
The rating can be set from 0A to 9999A with a factory default setting of 600A.
ID1-8 The operation Type of each shunt monitoring circuit on system distribution
boards 1-8 must be assigned based upon actual system implementation.
The operational Type may be: None (For no shunt), Battery (Monitoring battery
currents), and Load (for load currents).
ID1-8 Rating The current rating of each shunt being monitored by the system distribution
boards 1-8 must be configured based upon actual system implementation. All
shunts are assumed to be 50mV. The current rating may be from 0-9999 Amps.
The factory default is 600A for load shunts and 800A for the battery.