40 Mentor MP Short Form Guide
www.controltechniques.com Issue Number: 5
Table 4-5 Field controller current ratings
4.4.2 Supply requirements
Maximum supply in-balance: 2% negative phase sequence (equivalent to 3% voltage in-
balance between phases)
Frequency range: 45 to 65 Hz (maximum rate of frequency change is 7Hz/s)
4.5 Control 24 Vdc supply
The 24Vdc input has three main functions.
• It can be used to supplement the drive's own internal 24V when multiple SM-
Universal Encoder Plus, SM-Encoder Output Plus, SM-I/O Plus, or SM-I/O 32
modules are being used and the current drawn by these modules is greater than the
drive can supply. (If too much current is drawn from the drive, the drive will initiate a
'PS.24V' trip)
• It can be used as a back-up power supply to keep the control circuits of the drive
powered up when the line power supply is removed. This allows any fieldbus
modules, application modules, encoders or serial communications to continue to
operate.
• It can be used to commission the drive when the line power supply is not available,
as the display operates correctly. However, the drive will be in the UV trip state
unless the line power supply is enabled, therefore diagnostics may not be possible
(Power down save parameters are not saved when using the 24V back-up power
supply input).
Model
Maximum
auxiliary supply
input current
A
Maximum
continuous field
current rating
A
MP25A4(R) MP25A5(R)
13 8
M P 4 5 A 4 ( R ) M P 4 5 A 5 ( R )
M P 7 5 A 4 ( R ) M P 7 5 A 5 ( R )
M P 1 0 5 A 4 ( R ) M P 1 0 5 A 5 ( R )
M P 1 5 5 A 4 ( R ) M P 1 5 5 A 5 ( R )
M P 2 1 0 A 4 ( R ) M P 2 1 0 A 5 ( R )
MP350A4(R) MP3 50A5(R) MP350A6(R)
23 20
M P 4 2 0 A 4 ( R )
MP470A5(R) MP470A6(R)
MP550A4(R)
MP700A4(R) MP700A5(R) MP700A6(R)
MP825A4(R) MP825A5(R) MP825A6(R)
M P 9 0 0 A 4 ( R )
MP1200A4 MP1200A5 MP1200A6
MP1850A4 MP1850A5 MP1850A6
MP1200A4R MP1200A5R MP1200A6R
MP1850A4R MP1850A5R MP1850A6R
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