GE Industrial Solutions CPS6000 - Manual (Page 22)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
22
Table 2-J: QS820A Ringer Specifications
Input Voltage -40 to -57 Vdc See Output VA Thermal Limiting.
Nominal Input Voltage -48 Vdc
Input Current 5 A max.
Output
Voltage ac Component
65 to 100 Vac
Factory Default: 100Vac
ac tolerance ± 5 Vac
Regulation ±5% ac component only
dc Offset
Type of ringing
Battery Backed
Ground Backed
Ground Backed no-dc
• -40 to +57 Vdc Battery Backed
• +40 to +57 Vdc Ground Backed
• 0 Vdc Offset Disabled
• dc Offset tracks dc Input Voltage
• Factory Default: Enabled
• Battery or Ground Backed is selected by Ringer
Chassis jumper J12 or by external connection of
Ring Rtn to Battery or to Ground. Factory Default:
Battery Backed by Jumper
See figures in the Ringer section.
dc Offset Tracking
Error
± 3 Vdc
Harmonic Distortion 5% THD
Crest Factor 1.21 to 1.51
Output Frequency 15 to 50 Hz
Factory Default: 20 Hz
Frequency tolerance ± 1 Hz
Output VA 100 VA
Thermal Limiting Output VA may be reduced by reducing Vac when
operating simultaneously above 50°C and less than
-50Vdc input.
Vac is reduced only sufficiently to prevent damage to
the ringer.
Load Power Factor Operating: 0.5 Leading to 0.9 Lagging
No Damage: 0 Leading to 0.7 Lagging
Operating Temperature -40 to +75 °C See Output VA Thermal Limiting.
Heat Dissipation 50 W (170 BTU / hr)
Under Voltage Shutdown 50% of Output Vac Set Point
While shutdown due to external fault, restart will be
performed at approximately 2 minute intervals.
Table 2-K: QS840A and QS841A Control Unit Specifications
Operating Input Voltage Range 38 to 60 Vdc
Input Power 6.0 watts maximum
Plant Parameter Setting Through front panel LCD display and menu keys or with
IBM compatible PC with RS-232 port. 841 also has 10/100
Baset-T network ability
Alarm Contact Ratings 60 Vdc, 0.5A, Form-C
Operating Temperature -40 to +75 °C