Si0148 - Software Enhancements Effective June 2006 - Johnson Controls YORK OPTIVIEW YK Series Service Instructions Manual

FORM 160.54-M1

SI0148 - SOFTWARE ENHANCEMENTS EFFECTIVE JUNE 2006

GENERAL
Beginning June 2006, enhanced software will be sup-
plied in new production YK chillers. It is backward
compatible to all previous YK chillers equipped with
Microboard 031-02430-000 or 031-02430-001. The
enhancements are outlined below.
The version and part number for microboards (P/NS
031-02430-000 and 031-02430-001) for both NEMA
1-4 and CE chillers is C.OPT.01.15.011 (031-02474-
001).
MEDIUM VOLTAGE SOLID STATE STARTER
This software version is necessary for medium voltage
solid state starter applications.
575V/60HZ VARIABLE SPEED DRIVE
This software version is necessary for 575V/60Hz
VSD applications.
The following cycling shutdowns apply to 575V/60HZ
VSD:
• VSD-PRECHARGE-LOW DC BUS VOLTAGE
If the DC Link voltage does not reach at least
60VDC (within 4 seconds) or at least 600VDC
(within 20 seconds) after the precharge command
has been received, this shutdown is performed.
• VSD-PRECHARGE-DC
IMBALANCE
If the half DC link voltage does not remain within
plus or minus 106VDC of the DC link voltage
divided by 2 during the pre-charge interval, this
shutdown is performed.
• VSD-LOW DC BUS VOLTAGE
If the DC Link Voltage falls below 600VDC while
running, this shutdown is performed.
JOHNSON CONTROLS
The following safety shutdowns apply to 575V/60Hz
VSD:
BUS VOLTAGE
SECTION 35 - SOFTWARE ENHANCEMENTS
• VSD-DC BUS VOLTAGE IMBALANCE
If the half DC link Voltage does not remain within
plus or minus 106VDC of the DC Link Voltage
divided by two while running, this shutdown is
performed.
• VSD-HARMONIC
LOW DC BUS VOLTAGE
If the DC link voltage does not reach at least
60VDC (within 100 milliseconds) or at least
630VDC (within five seconds) after the filter
precharge command has been received, this shut-
down is performed.
• VSD-HARMONIC FILTER-DC BUS VOLTAGE
IMBALANCE
If the half DC link Voltage does not remain within
plus or minus 63 VDC of the DC Link Voltage
divided by 2, this shutdown is performed.
• VSD-HARMONIC FILTER-HIGH BASEPLATE
TEMPERATURE
If the Baseplate temperature rises above the fol-
lowing limits, this shutdown is performed:
424HP – 70.0° F, 174.2°C
608HP – 88.0° F, 190.4°C
• Microboard Applicability
This software will operate in microboard (P/N 31-
02430-000 or 031-02430-001). However, this ver-
sion (or later versions) is required for microboard
(P/N 031-02430-001).
FILTER-PRECHARGE-
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