11
5.5 MP 204 status register block
Registers in this register block can be read by means of function codes 0x03 and/or 0x04. They are read-only.
Address
Register name
Description
00201
StatusRegister
Bit 0: Rotation
Indicates if the pump is rotating (consuming power) or not.
0 = No rotation
1 = Rotation.
StatusRegister
Bit 1: ProtectionEnabled
Indicates if the general protection is enabled or disabled.
0 = Protection disabled
1 = Protection enabled.
Protection can be enabled/disabled with ControlRegister (register 00101, bit 3).
StatusRegister
Bit 2: Ready
Indicates if the MP 204 is ready or not.
0 = Not ready
1 = Ready.
StatusRegister
Bit 3: Fault
Indicates if there is a fault or not.
0 = No fault
1 = Fault.
StatusRegister
Bit 4: PTC
Indicates status of the PTC.
0 = Closed
1 = Open.
StatusRegister
Bit 5: PhaseSequence
Indicates the actual phase sequence.
0 = Phase sequence is right: L1-L2-L3
1 = Phase sequence is left: L3-L2-L1.
00202
OperationMode
Indicates the actual operating mode.
0 = Started (on, normal condition)
1 = Commanded trip (result of control register 00101, bit 1)
2 = Actuator stop (off) (result of control register 00101, bit 2)
3 = Protection stop.
00203
SystemMode
Indicates the actual system mode.
0 = Power-up
1 = Operating (normal condition)
2 = MP 204 fault.
00204
AlarmCode
The Grundfos-specific alarm code. See section
10. Grundfos alarm and warning codes
.
00205
WarningBits1
Bit-interpreted warnings
Bit 0 = Maximum voltage
Bit 1 = Minimum voltage
Bit 2 = Maximum line current
Bit 3 = Minimum line current
Bit 4 = Line current asymmetry
Bit 5 = RESERVED
Bit 6 = RESERVED
Bit 7 = RESERVED
Bit 8 = Insulation resistance
Bit 9 = Motor temperature (Tempcon)
Bit 10 = Motor temperature (PT resistor)
Bit 11 = RESERVED
Bit 12 = Maximum cos
ϕ
warning limit exceeded
Bit 13 = Minimum cos
ϕ
warning limit exceeded
Bit 14 = Starts per hour
Bit 15 = RESERVED.
00206
WarningBits2
Bit-interpreted warnings
Bit 0 = Start capacitor min.
Bit 1 = Run capacitor min.
Bit 2 = RESERVED
Bit 3 = Tempcon sensor signal fault
Bit 4 = Pt sensor signal fault
Bit 5 = Service warning: Operating time trip counter has exceeded its warning limit.
Bit 6 = Load continues even if the motor has been switched off
Bits 7-15 = RESERVED.
00207
Relays
Bit 0: ControlRelay
Indicates the status of the motor control relay.
0 = Relay opened
1 = Relay closed (power-on default after timeout).
Relays
Bit 1: SignalRelay
Indicates the status of the alarm signal relay.
0 = Relay opened (power-on default)
1 = Relay closed.
