Expanding safety barrier installation in CAB100B - CAB100

CAB100 Installation Guide
Document code
M212242EN
Revision
D
Language
English
Product
CAB100
Document type
User guide
  • The safety barriers you plan to install
  • Safety Barrier Wiring Set (Vaisala item code: ASM213201SP). The set contains the following:
    • Cable set for PDT or safety
    • Data logger data cable
    • Partition plate
    • Data logger holder
  • DL4000 data logger(s), 1 logger per 4 safety barriers
  • Small flat head screwdriver

For item codes, see Spare parts and accessories.

The partition plate is needed for isolating the intrinsically safe area from the non-intrinsically safe area inside the cabinet.
Each set of 4 safety barriers requires a Safety Barrier Wiring Set and a data logger of its own.
You can install only one type of device or measurement point (PDT101 transmitters, analog input channels, safety barriers, or galvanic isolators) per row in the cabinet.

In cabinet models with 5 to 8 data loggers, you need 2 serial port servers.

One serial port server controls the traffic of maximum 4 data loggers.

Make sure to number the data loggers as well as the cable sets and wires in the Safety Barrier Wiring Set before you install and connect them.

Follow the steps below to add new safety barriers to an existing set of devices in CAB100B. Refer to CAB100B layout diagrams when planning the installation.

For instructions on introducing safety barriers as new devices to an empty DIN rail in the cabinet, see Adding safety barriers as new modules to CAB100B.

The Safety Barrier Wiring Set consists of wiring for 4 devices. Any unused wires in the Wiring Set have been placed in the cable duct at the factory. If you have, for example, 3 barriers installed on a DIN rail, and want to complete the set by installing a fourth one, use the existing barrier wires present in the cable duct.

  1. De-energize the cabinet:
    1. Switch off mains power and the circuit breaker located inside the cabinet.
      1
      Circuit breaker
    2. Disconnect the safety barrier power wire connector from the power block located on the right-hand side of the cabinet.
  2. Remove the cable duct cover above the safety barriers.
  3. Mount the DL4000 data logger (or loggers), as shown in the following steps.
    Each set of 4 safety barriers requires a data logger of its own. If you are installing the second, third, or fourth barrier to complete a set of 4, the steps to mount a new data logger are not relevant, as you can connect the new barrier(s) to the existing data logger.
  4. Assemble the data logger holder.
    1. Place the data logger in the logger holder.
    2. Fit the cover into place.
    3. Tighten the screw by hand.
  5. Connect the logger data cable to the RS-232 serial port in the data logger.

    Use a small flat head screwdriver to tighten the screw attached to the connector.

  6. Mount the data logger on the DIN rail, preferably at the right-hand end of the rail.

    Rest the logger holder locking mechanism on the DIN rail and push down firmly. This will click the device into place.

  7. Connect the logger data cable to a free port in the serial port server.
  8. Take note of the wiring instructions printed on the side of the safety barrier.

    The information will be relevant when connecting wires in the intrinsically safe screw terminals of the barrier (15).

  9. Mount the barrier on the DIN rail.
    1. Make sure the blue end of the device, with the intrinsically safe screw terminals, faces down.
    2. Rest the upper part of the locking mechanism on the DIN rail and push down firmly. This will click the device into place.
  10. Using the cable set for safety, connect the safety barriers, the data loggers, and the 24 V DC power block, as shown in 11 to 14.
    1
    24 V DC power wires and connector
    2
    Safety barrier wires
    3
    Data logger connector
    The cable set for safety contains wiring for 4 safety barriers. If you install only 1 to 3 devices, leave the extra wires unconnected and the wire end caps in place.
  11. Observing polarity, connect the safety barrier wires to the connectors at the back of the barriers.
  12. Connect the black terminal connector of the cable set to the DL4000 data logger.
  13. Connect the 24 V DC power wire connector to the power block.
    1
    Vertical cable duct
    2
    Power wire connected to power block
  14. Route the wires along the cable ducts.
    1
    Safety barrier wires connected
    2
    Safety barrier power wire connected to power block
    3
    Data logger wires connected
  15. For wiring of the intrinsically safe screw terminals in the barriers, refer to the wiring instructions printed on the side of the barrier and the Operating Instructions leaflet provided in the barrier packaging.
  16. Insert any extra length of wire into the cable ducts and replace the cable duct covers.
  17. Reconnect power in the cabinet.
    1. Switch on the circuit breaker.
    2. Switch on mains power.