ABB SB822 3BSE018172R1 external rechargeable battery module

Description

SB822 If a fuse blows, disconnect power, remove the module and replace the fuse. CAUTION:

Electrostatic discharge can damage the module when it is not installed on an I/O Terminal Block.

Always observe normal ESD protection practices SB822 when handling an un-installed module.

Fuse locations correspond to the LED positions (F1/PWR through F4/PWR) in the front of the

module. See below for fuse locations.

SB822 Carefully pry the fuse upward to remove it, taking care not to damage any components in the

module. Place the new fuse in position and press it into the holder.

Spare fuses can be stored in the fuse holder compartment of the I/O Terminal Block (under the I/O

module).

The 24 VDC Electronic Short-Circuit Protection SB822 Output Module (IC670MDL730) provides a

single group of 8 discrete outputs. Each point has electronic overcurrent and short circuit

protection, and generates a fault if either condition exists.

Power for the module itself comes from the power supply in the Bus Interface Unit. An external

source of DC power must be provided for the switches that power the loads.

LEDs

Individual green LEDs (logic side) indicate the on/off status of each output. The green LEDs

remain off when user power is not present, regardless of the state of the outputs. Individual yellow

LEDs show the fault status of each output. The green PWR LED is on when field and backplane

power are present.

Host Interface

SB822 Intelligent processing for this module is performed by the Bus Interface Unit or elsewhere in the

system. This includes configuring features such as output default and fault reporting. The module

has 8 bits (one byte) of discrete output data. A Bus Interface Unit is required to obtain this output

data from the host and/or local processor.

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