This instruction manual describes the procedures of installing the Interface Unit IF-71RS, IF-70GU, IF-71LU
or IF-70PS for PS-A /PDS-A Series. Refer to the instruction manual of the power supply unit for the usage of
the PS-A / PDS-A series with the interface unit built in.
- PS-A / PDS-A series power supply units are equipped with an analog control unit as a standard
feature.
To install other interface units, follow the instructions below to remove the existing one.
- Set the operation of IF-71RS / IF-70GU / IF-71LU by means of short pins and dipswitch on the
interface unit.
Carefully check the operation setting before inserting the unit into the slot.
1. Uninstalling the Interface Unit
-Remove two setscrews (②) from the analog control unit panel (①) on the rear side of the power
supply unit, and detach the panel.
- Uninstall the analog control unit.
The interface unit is plugged in the connector firmly. It can be uninstalled easily by inserting a slotted
screwdriver into the opening located between the CN3 and SW1 connectors.
- For IF-71RS / IF-70GU / IF-71LU, lift the panel toward you to detach it by inserting a slotted
screwdriver into the cut out located in themiddle on the right side of the panel.
NOTE: For IF-71RS / IF-70GU / IF-71LU, do not hold the top and bottom of the panel for
removing it. This may result in warpage of the panel.
- For IF-71RS and IF-70GU, the interface unit can be uninstalled easily with a GP-IB or RS-232C
connector mounted.
- For IF-70PS, hold the screw terminal (④) of the interface unit to uninstall it.
▲CN2: Normally is short. Open to separate the frame GND and the signal GND.
3. Installing the Interface Unit
- Make sure that the analog control unit or IF-70 series has not been mounted to the PS-A / PDS-A
power supply unit. Then, insert the interface unit into the slot in the correct direction.
NOTE: Do not put any objects into the power supply unit during installation of the
interface unit. If some objects should enter it, remove them before turning on the
power. Failure to do so may cause damage to the product or electric shock.
- If the interface unit is installed in an improper position, the screws cannot be positioned correctly.
NOTE: For IF-71RS / IF-70GU / IF-71LU, the unit is integrated with the panel; For IF-70PS,
the unit and the panel are separate.
- Fix the interface unit with the screws removed from the panel.
