Appendix D—Modbus Register Map
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
319
603
System Services
UINT8 RW
Enum
System services are used to execute device level commands. The
command is automatically cleared after being processed.
700
Active Operation Mode
UINT8 RW NV
Default: 1
Enum
Config CRC
Run Lock
Admin Lock
USB Lock
Backup Mem
Active Operation Mode is a read/write parameter used to configure the
C445 for the application mode. - Overload Only uses Output 1 as a fault
contact. The output is closed when the unit is powered and no fault is
present. It opens on a fault. - Direct is FVNR Motor Control and uses
Output 1. - Reverser is FVR Motor Control and uses Outputs 1 and 2. - Star/
Delta or Wye/Delta applications use all three Base Control Module
Outputs. - Two Speed Poll Changing is for Fast/Slow Motor Control
applications and uses Outputs 1 and 2. - Two Speed Dahlander is for
Slow/Fast Variable Torque Motor Control Applications. All 3 outputs are
used. - HMCP/MCCP Actuation is for feeder breakers - Contactor Feeder
is for controlling a contactor feeder with Output 1 - Solenoid Valve is for
Solenoid Valve Motor Control Applications and uses Output 1. - Auto
Transformer is for starting a motor at the voltage reduced by the
transformer, with a correspondingly smaller current and uses all 3
Outputs.
701
Contactor Fault Delay
UINT16 RW NV
Default: 0
Range: 0 to 2000
Units: 10ms
Config CRC
Run Lock
Admin Lock
USB Lock
Backup Mem
Delay Before a “Contactor Failure” Fault is Issued after a change of
control state. For example, if the user commands C445 to run the motor
but no current is seen by the device, it indicates the contactor did not
close as commanded. This is meant as a delay in case the Fault clears
itself a short time after a change of control state. A value of 0 will disable
the contactor failure fault mode and this fault will never occur regardless
of whether the current detected matches the state being commanded by
C445.
Table 128. C445 Modbus Register Map, continued
Register
Name
Attribute
Description
Value
Description
0
No Active Service
1
Clear fault queue
2
Clear trip snapshot
3
Test trip
4
Re-pair external modules
5
Factory reset
6
Soft reset
7
Reset Fault
8
Proof Test
Value
Description
0
Overload only
1
Direct online
2
Reverser
3
Star/Delta
4
Two speed pole changing
5
Two speed Dahlander
6
Auto transformer
7
Solenoid valve
8
HMCP/MCCP actuation
9
Contactor feeder
10
General purpose input / output
11
Standalone GF Module