138 Technical data
Auxiliary power connection data
Voltage 230 V AC (115 V AC optional)
Frequency 50/60 Hz
Allowed electrical system TN-S (grounded) system. If IT (ungrounded) system, contact ABB for
instructions.
Overvoltage category
(IEC 62109, IEC 60664-1)
2
Control unit (RDCU/RMIO) connection data
Analog inputs
RDCU (A43, PVS800 master control program): one programmable
differential current input (0 mA / 4 mA … 20 mA, R
in
= 100 ohm).
RDCU (A41, PVS800 inverter control program): two programmable
differential current input (0 mA / 4 mA … 20 mA, R
in
= 100 ohm) and one
programmable differential voltage input (-10 V ... +10 V, R
in
= 200 kohm).
The analog inputs are galvanically isolated as a group.
Insulation test voltage 500 V AC, 1 min
Max. common mode voltage
between the channels
±15 V DC
Common mode rejection ratio >
60 dB at 50 Hz
Resolution 0.025% (12 bit) for the -10 V … +10 V input. 0.5% (11 bit) for the
0…+10 V and 0…20 mA inputs.
Inaccuracy ±0.5% (Full Scale Range) at 25
°C (77 °F). Temperature coefficient:
±100 ppm/
°C (±56 ppm/°F), max.
Constant voltage output
Voltage +10 V DC, 0, -10 V DC ± 0.5% (Full Scale Range) at 25 °C (77 °F).
Temperature coefficient: ±100 ppm/°C (±56 ppm/°F) max.
Maximum load 10 mA
Applicable potentiometer 1 kohm to 10 kohm
Auxiliary power output
Voltage 24 V DC ± 10%, short circuit proof
Maximum current 250 mA (shared between this output and optional modules installed on
the RMIO)
Analog outputs
Two programmable current outputs: 0 (4) to 20 mA, R
L
< 700 ohm
Resolution 0.1% (10 bit)
Inaccuracy ±1% (Full Scale Range) at 25
°C (77 °F). Temperature coefficient:
±200 ppm/
°C (±111 ppm/°F) max.
Digital inputs
RDCU (A43, PVS800 master control program): two programmable
digital inputs (common ground: 24 V DC, -15% to +20%) and a start
interlock input. Group isolated, can be divided in two isolated groups (see
Isolation and grounding diagram below).
RDCU (A41, PVS800 inverter control program): one programmable
digital input (common ground: 24 V DC, -15% to +20%) and a start
interlock input. Group isolated, can be divided in two isolated groups (see
Isolation and grounding diagram below).
Internal supply for digital inputs (+24 V DC): short-circuit proof. An
external 24 V DC supply can be used instead of the internal supply.