Siemens 6RA70 Series - Current Requirement for Terminals 87, 89 if Supplied from a Separate Source; Electronics Power Supply, Main Contactor, Fans (if Used) 15 to 850 Amp; Motor Armature Circuit; Motor Field Circuit

7-22 Siemens Energy & Automation
SIMOREG DC Master Base Drive Panel Operating Instructions
Motor Armature circuit
Function Terminal Connection values/Remarks Possible
settings
Armature supply AC input
Ground PE conductor
Armature circuit motor
connection
L1
L2
L3
A1
A2
See technical data, section 5 for
actual maximum current values.
P078
P100
P101
Motor Field circuit
Function Terminal Connection values/Remarks Possible
settings
AC Supply connection CTB 83 Single Phase 460 VAC P076
CTB 84 See section 5 for current rating P078
Motor Field connection CTB 80 + Rated DC voltage 300V P102
CTB
81
-
Electronics power supply, main contactor, fans (if used) 15 to 850 amp
Function Terminal Connection values/Remarks Possible
settings
Incoming AC supply 230V
(supplied by internal
control transformer)
CTB
CTB
87
89
Single Phase, 230 VAC, (hot)
(ground side)
Current Requirement for Terminals 87, 89 if supplied from a separate source
15 amp to 100 amp base drive panels: 0.55 amps
140 and 210 amp base drive panels: 1.2 amps
255 to 510 amp base drive panels: 1.6 amps
850 amp base drive panel: 4.6 amps