CERUS CI-007-P2, Installation, Programming Operation, & Maintenance Manual

Page: 98 / 137

Chapter 6 - Parameter Description
6-31
I/O FltRelay Mode
80 010
an Under level condition for the source in SET-75.
If Parameter Set-74 is set to
Over Level detection.
The selected AUX relay closes when VFD detects
an Over level condition for the source in SET-75.
$ )4*+ '
The fault relay mode
can be changed based
on the following table. The setting is in binary bit
format: 0 (Bit3)/ 0 (Bit2)/ 0 (Bit1). There are six
possible combinations for Fault Relay setting:
000- Fault relay is disabled
001- Fault relay is activated at Low Voltage Trip
010- Fault relay is activated at every fault except
Low Voltage trip regardless of Auto-Retry
settings.
011-
Fault relay is activated at every fault including
Low Voltage trip regardless of Auto-Retry
settings.
100- Fault relay is activated at every fault except
Low Voltage trip. If Auto-retry is enabled, the
fault relay will be activated only at trip after
last retry.
101- Fault relay is activated at every fault including
Low Voltage trip. If Auto-retry is enabled, the
fault relay will be activated only at trip after
last retry.
The BX Trip input does not activate Fault Relay.
$ )4 + ' ' '
I/O-81 displays real time relay output status in
binary format (0=OFF and 1=ON)
Relay outputs bit mapping table
Relay
Output
Fault Q3 Q2 Q1
AUX
4
AUX
3
AUX
2
AUX
1
Bit 7 6 5 4 3 2 1 0
Status 0 0 0 0 0 0 0 0
$ )4 6 4.+ ' !
I/O-82-
the time delay to activate Fault Relay after
VFD trip.
I/O-83- the time delay to deactivate Fault Relay
after VFD trip is reset.
$ )4/6 47+ 1 !- ! ! " '"
I/O-84- has three selections: Power On, Run, and
Temperature.
Power On- The VFD cooling fan runs when VFD
is powered.
Run- The VFD cooling fan runs during VFD run
mode.
Temperature- The VFD cooling fan runs when
VFD temperature is above the SET-85 temperature
setting in Celsius (°C).
For 7.5~40HP VFDs only the Power On selection is
available.
$ )5*A5/+ 1 '! ! $!&H H6 ; ' 6
1 6 ' 6 ! H
I/O-90 [VFD Number] sets the VFD ID for
Modbus RTU communication.
I/O-91 [Baud rate] sets the communication speed
and it should be identical to other devices in the
network. To make a multi-drop system, connect
VFDs in parallel: terminals C+ from one VFD to
C+ on another VFD and C- to C-. Activate a
termination resistor by dip switch on the last node
VFD.
I/O-92 & 93 are only displayed when SET-09
[Drive mode] or SET-10 [Frequency mode] are set
to Int. 485.
I/O-92 has three selections for VFD control when
communication signal is lost: Hold, Coast and
Decel.
If I/O-93 Time Out is set to 1 sec., the VFD triggers
a com. loss mode when signal is lost for more than
1 sec.
If I/O-92 is set to
Hold and signal was lost, the
VFD will run at previous speed.
If I/O-92 is set to
Coast and signal was lost, the
VFD will stop producing output and motor will
coast to stop.
If I/O-92 is set to
Decel and signal was lost, the
VFD will stop by decelerating based on SET-12.
I/O Out status
81 00000000
I/O Fan Control
84 Power On I/O Fan Temp
85 70
I/O Delay Time
94 5 msec
I/O Inv No.
90 12 I/O Baud Rate
91 9600
I/O COM LostCmd
92 Decel
I/O COM Time Out
93 1.0 sec
I/O RelayOnDly
82 0 sec I/O RelayOffDly
82 0 sec