MDS-C1-SPA Series INSTRUCTION MANUALib1500152(eng)a.pdf - 第57页
2. Wiring and Connection 2 - 29 (3) Wiring The illustration below shows the 2 types of c hangeover that occur after a coil changeover, (a) Y (star) – ∆ (delta) changeover, and (b) Y (star) – Y (sta r) changeover. As show…
2. Wiring and Connection
2 - 28
(2) Protective functions
[1] Base shutoff after a winding changeover
When the L-coil selection command (LCS) is used to perform low-speed winding → high-speed
winding switching, or vice-versa, this base is shut off during contactor operation time in order to
protect the spindle drive unit's main circuit. This base shutoff time is determined by the "Winding
changeover base shutoff timer" (SP059) setting. The standard time setting should be used, as a
shorter time can cause contactor burn damage.
(Refer to 4-2-2 (4) "Spindle control output 4" Coil changing (bit 6) for details.)
No. Abbrev. Parameter name Description Setting range
Standard
value
SP059 MKT* Winding
changeover base
shut-off timer
Set the base shut-off time for contactor switching at coil
changeover.
Note that the contactor may be damaged with burning if the
value of this parameter is too small.
50 to 10000
(ms)
150
[2] Current limit after coil changeover
Following a coil changeover, the current is limited (SP061) for the period specified by the
current limit timer (SP060) in order to stabilize control. When the synchronous tap control is
executed immediately after the coil changeover, the output current is limited to the value set in
SP061, therefore apply the sequence to execute the position control after the current limit is
cancelled.
No. Abbrev. Parameter name Description Setting range
Standard
value
SP060 MKT2* Current limit timer
after coil
changeover
Set the current limit time to be taken after completion of
contactor switching at coil changeover.
0 to 10000
(ms)
500
SP061 MKIL* Current limit value
after coil
changeover
Set the current limit value during a period defined in SP060
(MKT2) after completion of contactor switching at coil
changeover.
0 to 120 (%) 75
2. Wiring and Connection
2 - 29
(3) Wiring
The illustration below shows the 2 types of changeover that occur after a coil changeover, (a) Y
(star) – ∆ (delta) changeover, and (b) Y (star) – Y (star) changeover. As shown in (c), one of the
contactors (MC1 or MC2) is turned ON and the other is turned OFF at all of the coil changeover
control circuits.
U
V
W
X
Y
Z
U
V
W
MC2
MC1
S
p
indle moto
r
Spindle drive unit
terminal block
MC1: Contactor to connect low-speed coil (Y-connection)
MC2: Contactor to connect high-speed coil (
∆-connection)
(a) Y (star) - ∆ (delta) changeover circuit
U1
V1
W1
U2
V2
W2
U
V
W
MC1
Spindle motor
Spindle drive unit
terminal block
MC2
MC1: Contactor to connect low-speed coil (1st Y-connection)
MC2: Contactor to connect high-speed coil (2nd Y-connection)
(b) Y (star) - Y (star) changeover circuit
MDS-C1-SPA
OUT1 to
OUT8
CN10-10
RA
MC
SK
MC
RA
S
T
MC
SK
MC
RA
OUT1C to
OUT6C
CN10-10
RA
CN10-17
CN10-17
Connect t he sig nal wire s ide of coil RA with the outp ut pi n which t he In L co il select ion s igna l is provide d to.
(c) Coil changeover control circuit (common)
Coil changeover relay control circuit
2. Wiring and Connection
2 - 30
2-6-4 Wiring of an external emergency stop
(1) External emergency stop setting
Besides the emergency stop input from the NC or PC to spindle drive unit, double-protection when
an emergency stop occurs can be provided by directly inputting an external emergency stop to the
CN23 connector on the power supply unit. Even if the emergency stop is not input from CNC for
some reason, the contactors will be shut off by the external emergency stop input from CN23
connector on the power supply unit.
[1] Connection
NC
External emergency stop inpu t
MDS-C1-SPA
IN1 to IN1 2
CN4
MDS-C1-CV
CN4
1 EMG1
2 NC
3 EMG2
MC1
Emergency
stop
Alarm
Alarm
C o ntact o r s h ut o ff
command
CN23
MC1
L
21
L
11
FCUA-R000
SH21
Emergency
stop
OUT1 to OUT8
OUT1C to OUT6C
[2] Setting
When using the external emergency stop, the rotary switch on the front of the power supply unit
and the parameter (PTYP) of drive unit that controls the power supply must be set.
• Rotary switch setting: 4
• Parameter setting: Add "0040" to the setting of PTYP (SP041).
Parameter settings
No. Abbrev. Parameter name Descriptions
SP041 PTYP Power supply
type
When external emergency stop is validated, 0040 [hex] is added to PTY P for the drive unit
connected to the power supply unit.
CAUTION
The emergency stop signal input to the CNC side cannot be used as a substitute
for the external emergency stop function (CN23).