Honeywell VFD CORE Installation Instructions Manual page 194

CHAPTER 12: DESCRIPTION OF PARAMETER SETTINGS
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
1 Over current during Acceleration (ocA)
2 Over current during deceleration (ocd)
3 Over current during normal speed (ocn)
4 Ground Fault (GFF)
5 IGBT short circuit (occ)
6 Over current during Stop (ocS)
7 Over voltage during Acceleration (ovA)
8 Over voltage during deceleration (ovd)
9 Over voltage during normal speed (ovn)
10 Over voltage during Stop (ovS)
11 Low voltage during Acceleration (LvA)
12 Low voltage during deceleration (Lvd)
13 Low voltage during normal speed (Lvn)
14 Low voltage during Stop (LvS)
15 Input phase loss (PHL)
16 Over heat 1 (oH1)
17 Over heat 2 (oH2)
18 Thermister 1 open (tH1o)
19 Thermister 2 open (tH2o)
20 Main Power OFF
21 Over Load (oL) (150% 1Min, Inverter)
63-4528—04
MFI ON
FIRE ALARM
P 06-67
BYPASS DELAY
Fig. 1. Diagram of Bypass Function's Sequence
Error name
MFO ON
BYPASS
M33678
Normal Fire Mode
mode
V(RS) V (able to auto-reset)
V(RS) V (able to auto-reset)
V(RS) V (able to auto-reset)
V V (able to auto-reset)
V(RS) V (able to auto-reset)
V(RS) V (able to auto-reset)
V(RS) V (able to auto-reset)
V(RS) V (able to auto-reset)
V(RS) V (able to auto-reset)
V(RS) V (able to auto-reset)
V Not detectable
V Not detectable
V Not detectable
V Not detectable
V V (able to auto-reset)
V V (able to auto-reset)
V V (able to auto-reset)
V V (able to auto-reset)
V V (able to auto-reset)
V Not detectable
V Not detectable
194
Enable bypass
function
V
V
V
V
V
V
V
V
V
V
Not detectable
Not detectable
Not detectable
Not detectable
V
V
V
V
V
Not detectable
Not detectable