Toshiba Remote Starter ME00070B 用户手册

TMS7 SERIES 

ME00070B 

31 

Erratic motor 

operation and 
tripping. 

SCRs not latching. SCRs require a 

minimum current flow to ‘latch’ on. In 
situations where very small motors are 

being controlled by  large soft starters the 
current drawn may be insufficient to latch on 

the SCRs. Increase motor size or reduce 
soft start size. 

Soft stop ends 

before the 
programmed ramp 

time. 

Motor will not stall. The TMS7 has 

significantly reduced the voltage applied to 
the motor without detecting a reduction in 

motor speed. This indicates that with 
present motor loading further control of the 

voltage will be ineffectual, hence the soft 
stop function has halted. 

TMS7 display 

shows a ‘h’ 

panel is stuck. Release the button to 

restore normal operation. 

TMS7 will not enter 

the programming 
mode. 

The TMS7 is running. The TMS7 must be 

stopped before programming mode can be 
accessed. 

No, or incorrect control voltage. Ensure 

the correct control voltage is applied to the 
inputs A1, A2, A3. 

 

 

Run performance 

test. 

This test verifies correct operation of the 

TMS7 during run. 
1.  Measure the voltage drop across each 

phase of the TMS7 (L1–T1, L2–T2, 

L3–T3). The voltage drop will be less 
than approximately 2 VAC when the 

TMS7 is operating correctly. 

Control input test  This test verifies circuits connected to the 

TMS7 remote control inputs. (Start, Stop, 
Reset & FLC Select) 
1.  Measure the voltage across each 

input. With the remote circuit closed 
there should be 0VDC measured. If 

24VDC is measured the switch/control 
is incorrectly connected or faulty. 

Start performance 

test. 

This test verifies correct operation of the 

TMS7 during start. 
1.  Determine the expected start current 

by multiplying the settings made in 
Function 1. Motor Full Load Current 

and Function 2. Current Limit. 

2.  Start the motor and measure the 

actual start current. 

3.  If the expected start current and the 

actual start current are the same, the 
TMS7 is performing correctly. 

Power circuit test.  This test verifies the TMS7 power circuit 

including the SCR, firing loom and control 

module. 
1.  Remove the incoming supply from the 

TMS7 (L1, L2, L3 and control supply). 

2.  Remove the motor cables from the 

output terminals of the TMS7 (T1, T2 

& T3). 

3.  Use a 500 VDC insulation tester to 

measure the resistance between the 

input and output of each phase of the 
TMS7 (L1-T1, L2-T2, L3-T3). Note that 

low voltage ohm meters or multi-
meters are not adequate for this 

measurement. 

4.  The measured resistance should be 

close to 33k

Ω

 and approximately 

equal on all three phases

.

 

5.  If a resistance of less than about 

10k

Ω

 is measured across the SCR, 

the SCR should be replaced. 

6.  If a resistance greater than about 

60k

Ω

 is measured across the SCR 

there could be a fault with the TMS7 
control module or firing loom.