GE IC697PWR748 Series 90-70 48 VDC 90 W Power Supply
A rack-mounted 48 VDC input supply providing regulated +5 V, +12 V and −12 V outputs for a Series 90-70 rack.
Function, System Position and Selection Boundary
IC697PWR748 plugs directly into the Series 90-70 rack backplane and accepts a nominal 48 VDC source. Its regulated outputs share a 90 W total-power boundary, so a replacement review must use the rack load rather than only the input voltage.
The data sheet permits dual-rack power only when the second rack needs 5 V power, draws less than 5.2 A, and is close enough for the specified three-foot cable. That cable carries power and sequencing—not inter-rack communications.
Technical Specifications
Input and output
Installation boundary
Power-Budget Review
The 90 W nameplate is a combined limit. Calculate every installed module at the required temperature and include any second-rack load before approving the supply.
Source
Confirm 35–60 VDC at the supply terminals.
Backplane
Total the +5 V, +12 V and −12 V demands.
Second rack
Apply the 5 V-only and 5.2 A dual-rack limits.
Installation and Acceptance Sequence
- Save the installed rack list and calculate each rail load.
- Confirm conductor polarity, protective ground and input protection.
- If two racks share power, verify cable orientation and the second-rack conditions.
- After energization, check supply indicators and controller startup before enabling the process.
FAQ
Can IC697PWR748 power two racks?
Yes, but only under the documented restrictions: the second rack uses 5 V, draws under 5.2 A and is within the cable reach.
Does the dual-rack cable for IC697PWR748 carry I/O communications?
No. It carries the +5 V bus and sequencing signals; communications require the appropriate separate modules and cable.
What input range should be measured for IC697PWR748?
The data sheet gives 35–60 VDC around a nominal 48 VDC source.
Why is temperature important when sizing IC697PWR748?
Maximum output power is derated above 50 °C, so enclosure temperature affects the available load.
What closes a IC697PWR748 replacement?
Correct polarity, acceptable rail loading, normal indicators and a clean controller/rack startup must all be confirmed.
Automation Parts Supply Scope
The business scope covers PLC system spares, servo-drive parts, HMI displays, CNC system parts, robotics components, motors, encoders and inverter drives.
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