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H 7020 (0606)

495

Applications for the Terminal Module H 7020

The terminal module is used to interconnect I/O modules single pole or double pole, redundant

or mono and connect them with the field level. The terminal module can be mounted on DIN-

Rails in control cabinets or in marshalling cabinets. Field cables can be attached directly from

the field level to the clamps "F" of the terminal module. The advantage of the H 7020 terminal

module is the complete connection of the I/O modules to the terminal module via confectioned

Combicon connectors. The Combicon connector is used for a fast connection between the Ter-

minal Module and other modules.

Wiring of H 7020 single pole redundant with F 3236 input modules

Both digital input modules F 3236 are each redundantly connected single pole to the terminal

module via a 16-wire system cable. The following figures show redundant wiring of F 3236 in-

put modules in a combined control and marshalling cabinet or in separate cabinets.

Figure 3: Single pole redundant wiring via H 7020

The wires of the two system cables are color coded and are clamped to Combicon connectors.

For inverse polarity protection diodes are soldered between soldering points (X17/X19 and

X18/X20) of the terminal module, if input modules are connected to the terminal module. The

clamps "D" (headers X23 and X24) are used for test purposes.

Note The voltage supply L+ for the sensors and contact makers must be

wired separately to the fuse module (e.g. F 7133). The fuse module is

connected to clamp "D".

HIMA H41q User Manual

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