Datasheet

78M6610+PSU Data Sheet
3.7 Alarms and Alarms Configuration Registers
3.7.1 Alarms Status Register (address 0x30)
The Alarms Status register is an output register (read-only) that contains the status of the alarms and
other conditions. Table 3-8
reports the Alarms register bit assignment and the corresponding limit
registers (thresholds) and Hold-Off time registers.
Table 3-8: Alarms Register and Corresponding Configuration Registers
Bit
Alarms
Register
(Bit)
Limit
Register
(1)
Hold-Off
Register
(1)
Function
23 DataReady – – Low-rate results have been updated
22 OverTemp Tmax TminHold Die temperature is over limit
21 UnderTemp Tmin TminHold Die temperature is under limit
20 Not Used N/A N/A Not used
19 ExtOvTemp1 XMax1 – External temperature 1 is over limit
18 ExtOvTemp2 XMax2 – External temperature 2 is over limit
17-12 Not Used N/A N/A Not used
11 Vsag Vsag VsagHold Voltage sagged below limit
10 Vsurge Vsurge VsagHold Voltage surged above limit
9 VdropOut Vdrop – Voltage dropped below limit
8 OverVolt Vmax VminHold RMS voltage went above upper limit
7 UnderVolt Vmin VminHold RMS voltage fell below lower limit
6 OverCurrent Imax ImaxHold RMS current went above limit
5 OverPower Pmax PmaxHold Power went above limit
4 OverFreq Fmax Fminhold Line frequency went above upper limit
3 UnderFreq Fmin Fminhold Line frequency fell below lower limit
2 Relay_On – – Relay is ON
1 Zero_Cross – – Voltage low-to-high zero-crossing detected
(auto-clears)
0 Not Used – – Not used
Note:
1) These are input registers and their value can be saved in flash memory as defaults through the
ACC Command.
Rev 3 31