Tyco Electronics Galaxy SC Controller J85501F-1
9 - 2 Safety Issue 13 February 2001
manufacturer using only the connector manufacturer’s recommended
tooling or tooling approved for that connector.
For electrical connections requiring crimp-on lugs, make sure the proper
crimping tools and dies are used (information for these connections are
provided in the product documentation). Torque electrical connections
to the values specified on labels or in the product documentation (T
drawings).
For any power wiring, the insulation on field-wired conductors should
be rated no less than 90° Celsius. Wire conductor size should be no less
than allowed by electrical codes for 60° Celsius wire (regardless of
insulation temperature rating used) and based on the ampacity of the
associated protection device.
Alarm contacts on TB2 and TB3 are not fused within the controller.
Therefore, current limiting protection for these contacts must be
provided by external circuits. Maximum ratings for alarm connections
are 60vdc and 0.3 amperes. Exceeding these maximum ratings could
result in fire or damage to the unit.
Fuse holders, fuses, and termination kits may not be provided with the
equipment. Refer to the product documentation for the proper hardware.
Use only the parts specified in the equipment documentation (T and J
drawings).
The maximum cable sizes or the required cable assemblies for the input/
output wiring are noted on the T drawings.
Installing fuses not specified for use in this equipment may result in
injury to service personnel or equipment damage. Use only replacement
parts listed in this manual and on the equipment drawings.
The shunt input to TB1 (shunt +, shunt -) must be from the grounded
side of the system, therefore, this input is not fused on the fuse board. If
the Galaxy SC is ever used with systems where the shunt is located in
the hot side of the plant, a suitable in-line fuse rated 1-1/3 amp must be
installed.
The input to TB1 (DB/RB) should be wired per applicable local codes
or the National Electrical Code. The input wiring should be protected by
a suitable dc rated overcurrent protector. The internal circuits supplied
by these inputs are protected on the fuse board inside the controller.
Each output of the peripheral monitor board supplies the peripheral
monitoring system modules with current limited Class 2 levels from an
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