5
The 19 Series PIC 5+ control system consists of one main
control board (SAIA board), an ISM (Integrated Starter
Module) and three basic IOBs (Input/output Board Module)
and optional IO boards per system requirements. All boards
communicate via an internal LEN bus. If a Rockwell or Eaton
Unit Mounted VFD is installed, a LEN-MODBUS protocol
converter module is required.
3.1.1 - Main Control Board
Figure 1: 19 Series PIC 5+ Control Interface
Figure 2: 19 Series PIC 5+ Control Interface
(View From Below)
1. Power supply connector (24 VAC)
2. LEN connector
3. CCN connector
4. Ethernet connector
5. USB connector
The main control board is supplied from a 24 VAC supply
referred to earth.
CAUTION: Maintain the correct polarity when connecting
the power supply to the boards; otherwise the boards may
be damaged.
In the event of a power supply interrupt, the unit restarts
automatically without the need for an external command.
However, any faults active when the supply is interrupted
are saved and may in certain cases prevent a circuit or unit
from restarting.
3.1.2 - ISM (Integrated Starter Module)
ISM is motor control module, and it is supplied from an
115VAC supply referred to earth.
ISM input / output description is as below:
STARTER FAULT STARTFLT Dry Contact J2-7,8
COMPRESSOR START CONTACT STAR_AUX Dry Contact J2-9,10
COMPRESSOR RUN CONTACT RUN_AUX Dry Contact J2-11,12
LINE VOLTAGE V1 LN_VOLT1 0-5 Volt J3-1
LINE VOLTAGE V2 LN_VOLT2 0-5 Volt J3-2
LINE VOLTAGE V3 LN_VOLT3 0-5 Volt J3-3
LINE CURRENT C1 LN_AMPS1 0-5 Volt J4-1,2
LINE CURRENT C2 LN_AMPS2 0-5 Volt J4-3,4
LINE CURRENT C3 LN_AMPS3 0-5 Volt J4-5,6
GROUND FAULT PHASE 1 GRFLT_31 0-5 Volt J5-1,2
GROUND FAULT PHASE 2 GRFLT_23 0-5 Volt J5-3,4
GROUND FAULT PHASE 3 GRFLT_12 0-5 Volt J5-5,6
VFD SPEED FEEDBACK VFD_IN 0-10 Volt/ 0-5 Volt J6-1,2
VFD TARGET SPEED VFD_OUT 0-20 mA J8-1,2
COMPRESSOR START RELAY COMP_SR Relay J9-1,2
COMPRESSOR TRANS RELAY TRANS Relay J9-3,4
SHUNT TRIP RELAY TRIPR Relay J9-5,6
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