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SECTION 36 - SOFTWARE ENHANCEMENTS
SI0210 - SOFTWARE ENHANCEMENTS (VER 20) EFFECTIVE JUNE 2009 (CONT'D)
Full Load Amps Setpoint (Maximum Value)
The maximum allowed programmable value of the
full load amps setpoint on the MV VSD screen is now
set to the programmed drive current (Modbus Address
40013) value received from the MV VSD. In previous
software versions, it was derived from a lookup table
based on the motor rated voltage and MV VSD model.
Motor Voltage Rating
On the MV VSD screen, the Voltage Rating display has
been changed to read Motor Voltage Rating. Displayed
in volts, as received from the MV VSD. If any invalid
Motor Voltage Rating is received from the MV VSD,
INVALID is displayed and the chiller will not be al-
lowed to run while this is displayed.
Output Frequency Rating
A new data box is added to the MV VSD screen la-
beled output frequency rating. The rated output fre-
quency (Modbus Address 40033), as received from the
MV VSD, is displayed here. This value is the maxi-
mum drive frequency (Hz) when it receives a 100%
speed command from the OptiView Control Center. If
the value received is not 50 Hz or 60 Hz, INVALID
is displayed. If this is the case, then the motor voltage
rating (above) determines the maximum frequency as
follows:
Motor Voltage Rating
2300 V or 4160 V
3300 V
362
Output Frequency Rating
60 Hz
50 Hz
JCI COMPANY CONFIDENTIAL
Toll Free Phone Number
The label for the toll free number was changed from
YORK International North American Toll Free Num-
ber to Johnson Controls North America Parts Center.
Japanese Language
Japanese was added to the selection of languages.
Variable Speed Drive Low Frequency Fault
In previous software versions, the VSD – LOW FRE-
QUENCY DETECTED safety fault occurs when the
VSD frequency is below 1Hz less than the minimum
allowed running frequency after having reached the
minimum frequency.
In this software version, the requirement to reach the
minimum frequency before the fault can be detected,
has been eliminated. Also, 20 and 25 second timers
were added to the requirement. After a 20 second by-
pass after entering system run, the frequency must be
1Hz less than the minimum frequency for 25 consecu-
tive seconds before the fault will shutdown the chiller".
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS
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