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MA7200 PLUS Operating Manual
TECO – Westinghouse Motor Company Control Terminals Functions
Table 4.2.1 Control Circuit Terminal Functions
Terminal
Functions
1 (DI1)
Forward Operation – Stop Signal
2 (DI2)
Reverse Operation – Stop Signal
3 (DI3)
External Fault Input
4 (DI4)
Fault Reset
5 (DI5)
Multifunction Input Terminals: 3-Wire operation, Local / Remote control, Multi-Speed select,
FWD / REV select, ACC / DEC select, ACC / DEC inhibit, Halting, Base Block, Overheat warning,
PID control, DC braking, Speed search, Up / Down function, PG feedback control, External fault,
Timer function, Multifunction analog Input setting. (See Parameter Section for details)
6 (DI6)
7 (DI7)
8 (DI8)
DG (SC)
Digital signal ground (
230V: 1 - 2HP and 460V: 1 - 2HP models
Only)
(24VG)
Sink Common Point (Set Jumper TP2 to
SINK
position)
(230V: 3 - 40HP and 460V: 3 - 75HP models
Only)
24V
Source Common Point (Set jumper TP2 to
SOURCE
position)
(230V: 3 - 40HP and 460V: 3 - 75HP models
Only)
E
Connection for signal shield lead (Chassis Ground)
+12V
DC voltage for External Device
-12V
Only supported in the
(230V: 3 - 40HP, 460V: 3 - 75HP and 575V: 1-10HPmodels
Only)
VIN
Master speed Voltage Reference (0 - 10V) (Models above 2HP supports( –10V - 10V input)
AIN
Master speed Current Reference (4 - 20mA)
AUX
Auxiliary Analog Input:
Auxiliary frequency command, Frequency gain, Frequency bias, Excess load detection, Output
voltage bias, ACC / DEC ramp, DC-Brake current, Stall prevention current level during running,
PID Control, Frequency command Lower-Bound, Frequency – Jump - 4, etc. (See Parameter
Section for details)
GND
Analog Signal Common
IP12
External Power Source For PG Feedback (Set TP1 to PULL UP for external power source)
IG12
A(+)
Signal Input from PG (Can also be used as the input terminals for a Pulse Input Frequency
Command)
A(-)
AO1
Analog Multifunction Output Port:
Frequency command, Output frequency, Output current, Output voltage, DC voltage, PID
controlled value, Analog command input of VIN, AIN or AUX.(Output current < 2mA) (See
Parameter Section for details)
AO2
GND Analog
Common
RA(R2A)
Relay Contacts, RA,RB and RC (
230V: 1 - 2HP and 460V: 1 - 2HP models
Only)
Relay Contacts R2A, R2B and R2C
(230V: 3 - 40HP and 460V: 3 - 75HP models
Only)
DO1Open Collector transistor
(All)
DO2 Open Collector transistor (
230V: 1 - 2HP and 460V: 1 - 2HP models
Only)
Functions:
During-Running, Zero-speed, Agree-frequency, Agree-frequency-setting, Frequency-output,
Inverter-operation-ready, Undervoltage-detection, Base-block output, Run source, Frequency
command, Excess load detection, Frequency command invalid, Fault, Undervoltage, Overheat,
Motor overload, Inverter overload, During-retry, Communication-fault, Timer-function-output.
(See Parameter Section for details)
RB(R2B)
RC(R2C)
R1B
R1C
DO1
DO2
DOG
Common Terminal (Open collector transistor outputs)
S(+)
RS-485 Port
S(-)
CAUTION
Use the control circuit terminals VIN, AIN according the setting of parameterSn-24.
The MAX. Output current at terminal (+24V or +12V) is 20mA.
The multi-function analog output terminals AO1, AO2 are dedicated outputs to monitor frequency, amps, etc.
Do not use these 2 analog outputs for feedback control or any other control purpose.