SAMCO-vm05 Series (SHF/SPF, SBT)

Main Circuit Terminals

Symbol Name Description
R,S,T Input power supply terminals These terminals are used to connect to a three-phase commercial power supply.
U,V,W U, V, W Inverter output terminals These terminals are used to connect to a three-phase induction motor.
P,P1 DC reactor connection terminals These terminals are used to connect a DC reactor. (When connecting a DC reactor, remove the shorting bar between P and P1.)
P,PR Brake resistor connection terminals These terminals are used to connect a brake resistor between P and PR (SBT-0.75K/1.5K to SBT-7.5K/11K).
Remove the internal brake resistor connecting line and insulate it with vinyl tape or some other insulating material before using an external brake resistor.
P, X DC link voltage
connection terminals		 P is a DC positive terminal, and X is a DC negative terminal.

Connection of Control Circuit Terminal


Control circuit terminal

Symbol Terminal Description
  DCM1
DCM2		 Function selection with
Cd638 to Cd640
  • Common terminals for digital I/O signal and for +24 V power supply
Input
terminals		 DI1
DI2
DI3
DI4
DI5
DI6
DI7
DI8		 Multifunctional input terminals
Function selection with
Cd630 to Cd637
  • Signal input "on" by shorting with either DCM1 or DCM2
  • Signal input "off" by disconnecting from either DCM1 or DCM2
ACM Analog signal common
terminal
  • Common terminal for analog signals
+V1 Variable resistor connection
terminal for
frequency setting VRF1
  • Use a 5 KΩ variable resistor with a rating of at least 0.3 W.
  • Power cannot be supplied externally from this terminal. Connect only a variable resistor.
+V2 Variable resistor connection
terminal for frequency setting VRF2
VRF1 Analog voltage
input terminal
  • Input 0 to 10 VDC. When the input terminal function is set to gfrequency settingh, the inverter command frequency is proportional to the input analog signal voltage and the set gain frequency (Cd055) is applied when the input signal is 10 V.
    (When function code Cd002 is set to data related to VRF1)
  • The input impedance is about 31 kΩ . The input voltage range can be changed from 0 to 5 V, using the corresponding function code.
IRF/VRF2 Analog current/
voltage input terminal
(for current and
voltage input)
  • When frequency setting is selected, current input IRF or voltage input VRF2 can be selected using Cd002.
  • When IRF is selected, input 4 to 20 mA DC. When the input terminal function is set to gfrequency settingh, the inverter command frequency is proportional to the input analog signal current and the set gain frequency (Cd063) is applied when the input signal is 20 mA. When IRF is selected, the input impedance is about 500Ω .
Output
terminals		 +24V +24 V output
power supply
  • 24 VDC power (maximum allowable output current: 150 mA)
AOUT1
AOUT2		 Built-in analog
output terminals
(2 output channels)
  • One monitor item is selected from Cd126 (AOUT1) and Cd128 (AOUT2), and indicated by an analog output.
  • The output signal voltage is from 0 to 10 VDC and the maximum allowable current is 15 mA. (Adjust the output coefficient because the output voltage decreases as the output current increases.)
  • The output signal can be varied from 0 to 20 times using the Cd127 (AOUT1) or Cd129 (AOUT2) function code.
  • On the ground side, use the ACM analog signal common terminal.
DO1
DO2
DO3		 Multifunctional
output terminal
(Function selection with Cd638 to Cd640)
  • The open collector output is 24 VDC and 50 mA or lower.
  • The signal turns on according to the selected function.
  • The common terminal is common to the DCM1 to DCM2 digital signal common terminal.
FA
FB
FC

Alarm signal output
terminals and
multifunctional
contact output
  • These are contact output terminals indicating that the protection function has stopped the inverter.
  • Multifunctional setting output is performed according to the settings of the Cd674: relay contact output selection.
    Normal: FA-FC open, FB-FC closed
    Abnormal: FA-FC closed, FB-FC open
Communication
terminals		 TRA
TRB		 RS485
serial communication
terminals
  • Send/receive terminal
RXR
  • Terminating resistor shorting terminal
  JP1 Upgrade jumper
  • Do not connect anything to these terminals except when upgrading.

Multifunctional Input Terminals

Control terminals DI1 to DI8 are multifunctional input terminals. The following functions can be set with Cd630 to Cd637.

Data No. Symbol Function Data No. Symbol Function Data No. Symbol Function
0 - Unused 23 23 Multiplexed
terminal		 FR+AD2+2DF 46 PID PID control switching signal
1 FR Forward run
command		 24 Multiplexed
terminal		 RR+AD2+2DF 47 PM1 External motorM1selecting signal*
2 RR Reverse run
command		 25 Multiplexed
terminal		 FR+AD2+3DF 48 PM2 External motorM2selecting signal*
3 2DF Multi-speed
command1		 26 Multiplexed
terminal		 RR+AD2+3DF 49 PM3 External motorM3selecting signal*
4 3DF Multi-speed
command2		 27 Multiplexed
terminal		 FR+AD2+2DF+3DF 50 PM4 External motorM4selecting signal*
5 MBS Free-run
command		 28 Multiplexed
terminal		 RR+AD2+2DF+3DF 51 PM5 External motorM5selecting signal*
6 ES External anomaly
stop command		 29 Multiplexed
terminal		 FR+AD3+2DF 52 PM6 External motorM6selecting signal*
7 RST Alarm reset
command		 30 Multiplexed
terminal		 RR+AD3+2DF 53 PM7 External motorM7selecting signal*
8 AD2 2nd or 4th
acceleration/
deceleration or
up terminal		 31 Multiplexed
terminal		 FR+AD3+3DF 54 Reserved
9 AD3 3rd or 4th acceleration/
deceleration or down terminal		 32 Multiplexed
terminal		 RR+AD3+3DF 55 P0 Zero-speed
command*
10 JOG Jog operation
command		 33 Multiplexed
terminal		 FR+AD3+2DF+3DF 56 Multiplexed
terminal		 FR+CCL*
11 Multiplexed
terminal		 FR+JOG 34 Multiplexed
terminal		 RR+AD3+2DF+3DF 57 Multiplexed
terminal		 RR+CCL*
12 Multiplexed
terminal		 RR+JOG 35 PTR Reset command for
simple scheduled operation timer		 58 to 61 Reserved
13 Multiplexed
terminal		 FR+AD2 36 IF IRF terminal signal
priority command		 62 Multiplexed
terminal		 FR+MBS
14 Multiplexed
terminal		 RR+AD2 37 5DF Multi-speed (5th to 8th speed)
selection command		 63 Multiplexed
terminal		 RR+MBS
15 Multiplexed
terminal		 FR+AD3 38 HD Operation command
hold command		 64 Reserved
16 Multiplexed
terminal		 RR+AD3 39 2P 2nd pressure
switching command*		 65 Multiplexed
terminal		 2DF+AD2
17 Multiplexed
terminal		 FR+2DF 40 2PT 2nd pump increase/
degrease switching
time selection command*		 66 Multiplexed
terminal		 2DF+AD3
18 Multiplexed
terminal		 RR+2DF 41 TCL Regular pump timer
reset command*		 67 Multiplexed
terminal		 3DF+AD2
19 Multiplexed
terminal		 FR+3DF 42 Multiplexed
terminal		 2P+2PT 68 Multiplexed
terminal		 3DF+AD3
20 Multiplexed
terminal		 RR+3DF 43 CP Command pulse
blocking signal		 69 A ×10 Electric gear × 10*
21 Multiplexed
terminal		 FR+2DF+3DF 44 CCL Deviation counter
clearing signal		 70 A ×100 Electric gear× 100 *
22 Multiplexed
terminal		 RR+2DF+3DF 45 PC P control signal* 71`99 Reserved

* Option functio

Multifunctional Output Terminals

Control terminals DO1 to DO3 are multifunctional output terminals. The following functions can be set with Cd638 to Cd640.

Data No. Function Remark Data No. Function Remark Data No. Function Remark
0 - Unused terminal 12 Regular pump switching signal Option 24 JOG signal Input terminal status output
1 In operation 1 On when the gate is on 13 Excitation and DC braking signal   25 MBS signal Input terminal status output
2 Voltage low  l 14 Lower frequency limit matching signal   26 ES signal Input terminal status output
3 Operation cycle end Simple scheduled operation 15 Upper frequency limit matching signal   27 RST signal Input terminal status output
4 In operation 2 Off during DC braking and excitation 16 Servo on signal Option 28 Switching standby signal Option
5 Frequency matching 1st speed frequency only 17 Zero servo completion Option 29 Positioning completion signal Option
6 Frequency matching 1st to 8th speed frequencies 18 FR signal Input terminal status output 30 Brake resistor on signal  
7 Frequency approach   19 RR signal Input terminal status output 31 Reserved
8 Overload alarm level setting signal Value of Cd048 (Output only during constant operation) 20 2DF signal Input terminal status output 32 Frequency counter output Output frequency
9 Electrothermal level prediction Output at 80% or more 21 3DF signal Input terminal status output 33 Frequency counter output Command frequency
10 Radiator heat prediction   22 AD2 signal Input terminal status output 34 Overload alarm level setting signal Value of Cd048 (Output during all operations)
11 Auxiliary pump driving signal Option 23 AD3 signal Input terminal status output 35`99 Reserved
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