CHAPTER 12: DESCRIPTION OF PARAMETER SETTINGS
63-4528—04 194
Fig. 1. Diagram of Bypass Function’s Sequence
Conditions required to enable the bypass function
When Pr06-66 is set to 1 and under one of two conditions below.
1. When operating at fire mode, there is error (as shown in the table below) and the fire alarm rings according to the time set-
ting of Pr06-67, then the bypass function will be enabled. MFO bypass indication will be ON.
2. When operating at fire mode, there is an error on auto-reset and the number of time to auto-reset remains zero or the fire
alarm rings according to the time setting of Pr06-67, then the bypass function will be enabled. MFO bypass indication will
be ON. If the auto rest is successful before the bypass function is enabled, then the bypass delay counter will return to zero
to wait for next trigger.
Table 4. Error detection under Normal mode, Fire mode and Bypass function at Fire mode (V means detectable)
Code Error name Normal
mode
Fire Mode Enable bypass
function
1 Over current during Acceleration (ocA) V(RS) V (able to auto-reset) V
2 Over current during deceleration (ocd) V(RS) V (able to auto-reset) V
3 Over current during normal speed (ocn) V(RS) V (able to auto-reset) V
4 Ground Fault (GFF) V V (able to auto-reset) V
5 IGBT short circuit (occ) V(RS) V (able to auto-reset) V
6 Over current during Stop (ocS) V(RS) V (able to auto-reset) V
7 Over voltage during Acceleration (ovA) V(RS) V (able to auto-reset) V
8 Over voltage during deceleration (ovd) V(RS) V (able to auto-reset) V
9 Over voltage during normal speed (ovn) V(RS) V (able to auto-reset) V
10 Over voltage during Stop (ovS) V(RS) V (able to auto-reset) V
11 Low voltage during Acceleration (LvA) V Not detectable Not detectable
12 Low voltage during deceleration (Lvd) V Not detectable Not detectable
13 Low voltage during normal speed (Lvn) V Not detectable Not detectable
14 Low voltage during Stop (LvS) V Not detectable Not detectable
15 Input phase loss (PHL) V V (able to auto-reset) V
16 Over heat 1 (oH1) V V (able to auto-reset) V
17 Over heat 2 (oH2) V V (able to auto-reset) V
18 Thermister 1 open (tH1o) V V (able to auto-reset) V
19 Thermister 2 open (tH2o) V V (able to auto-reset) V
20 Main Power OFF V Not detectable Not detectable
21 Over Load (oL) (150% 1Min, Inverter) V Not detectable Not detectable
M33678
MFI ON
FIRE ALARM
P06-67
BYPASS DELAY
MFO ON
BYPASS
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