Carrier 19EF Series Start Up & Operation Manual page 64

Processor Module (PSIO) (Fig. 32)
INPUTS — Each input channel has 3 terminals; only 2 of
the terminals are used. Application of machine determines
which terminals are normally used. Always refer to indi-
vidual unit wiring for terminal numbers.
OUTPUTS — Output is 20 vdc. There are 3 terminals per
output, only 2 of which are used, depending on the appli-
cation. Refer to the unit wiring diagram.
NOTE: LID address switches are factory set as follows:
S1 is set at E;
S2 is set at 6.
Fig. 31 — LID Module Address Selector
Switch (Rear View) and LED Locations
NOTE: PSIO address switches are factory set as follows:
S1 is set at 5;
S2 is set at A.
Fig. 32 — Processor (PSIO) Module
Starter Management Module (SMM) (Fig. 33)
INPUTS — Inputs on strips J2 and J3 are a mix of analog
and discrete (on/off) inputs. Application of the machine de-
termines which terminals are used. Always refer to the in-
dividual unit wiring diagram for terminal numbers.
OUTPUTS — Outputs are 24 vdc and wired to strip J1. There
are 2 terminals used per output.
NOTE: SSM address switches should be set as follows:
S1 set at 3;
S2 set at 2.
Fig. 33 — Starter Management Module (SSM)
Options Modules (8-Input) —
are optional additions to the PIC, and are used to add tem-
perature reset inputs, spare sensor inputs, and demand limit
inputs. Each option module contains 8 inputs, each input meant
for a specific duty. See the wiring diagram for exact module
wire terminations. Inputs for each of the options modules
available include the following:
OPTION MODULE 1
4 to 20 mA Auto. Demand Reset
4 to 20 mA Auto. Chilled Water Reset
Common Chilled Water Supply Temperature
Common Chilled Water Return Temperature
Remote Temperature Reset Sensor
Spare Temperature 1
Spare Temperature 2
Spare Temperature 3
OPTION MODULE 2
4 to 20 mA Spare 1
4 to 20 mA Spare 2
Spare Temperature 4
Spare Temperature 5
Spare Temperature 6
Spare Temperature 7
Spare Temperature 8
Spare Temperature 9
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The options modules