Valcom VMM6 Series
- Multiple process inputs: 1~5V, ±5V, 4~20mA, and ±20mA
- High speed sampling at a maximum of 1000 samples per second.
- Models with analog outputs are multiple output type that enables scaling at any range among 0 to 1 V, 0 to 10 V, 1 to 5 V, and 4 to 20 mA.
- Alarm setting values can be adjusted easily by the jog lever.
- LED alternates between red and green, allowing the judgment result to be identified by color.
- Comparative setting outputs (3 points: H/G/L) included as standard.
- Various functions included as standard.
“Start hold”, “Digital zero”, “Peak hold” and “Pattern select” functions included.
Various Functions
Pattern Select Function
This function stores up to eight patterns of scaling data and comparator data, and allows the users to set patterns as desired.
Pattern selection can be controlled either via terminals or via front keys according to the condition data setting. In case of control via terminals, short the terminals between P.SEL1 to 3 and COM or make them equipotential to enable pattern switching from P-1 up to P-8. In case of control via front keys, hold down the increment key for approx. 3 seconds to switch patterns.
Start Hold Function
This function holds the display at the desired timing. Either A or B type can be set according to the condition data.
A type is a free run mode. In the free run condition, shorting S/H and COM terminals or making them equipotential will hold the displayed value and the comparison judgment value.
B type is a one-shot mode. In the hold condition, shorting S/H and COM terminals or making them equipotential will output the displayed value and the comparison judgment value once.
Peak Hold Function
This function holds any of the maximum (peak) value, the minimum (valley) value, and the difference between the maximum and the minimum (peak – valley) and outputs the value held. (The value to be held is switched according to the condition data.)
Shorting S/H and COM terminals or making them equipotential will turn ON the peak hold function.
Digital Zero Function (Display reset function)
This function forcibly zeros the displayed value. It is useful when subtracting tare weight during load measurement with load cells connected.
Display reset (Digital zero) function ON/OFF can be controlled via terminals or via front keys according to the condition data setting.
In case of control via terminals, shorting the terminals between DZ and COM or make them equipotential to turn ON the display reset function. In case of control via front keys, hold down the shift key for approx. 3 seconds to turn ON the function.
Specification
| Display | Main display Red/Green 7 segments LED display(Character height: Approx. 20mm) Sub display Red 7 segments LED display(Character height: Approx. 6mm) |
|---|---|
| Display Range | -9999~9999 |
| Use Temperature Range | 0~50°C |
| Use Humidity Range | 35~85%RH |
| Storage Temperature Range | -10~70°C |
| Storage Humidity Range | 60%RH or less |
| Power | AC power: AC100~240V±10% DC power: DC12~48V±10% |
| Power Consumption | Maximun rating Approx. 8VA(AC100V) Maximun rating Approx. 7W(DC24V) |
| Dielectric Strength | AC power: Power-Input-Output AC1500V 1 minute |
| DC power: Power-Input-Output DC500V 1 minute | |
| (Common) Input-Output DC500V 1 minute Output-Output DC500V 1 minute Case-Power, Input, Output AC1500V 1 minute |
|
| Insulation Resistance | 100MΩ min. at 500V DC between above terminals |
| Dimensions | 96mm(W)×48mm(H)×99.5mm(D) |
| Weight | Approx. 450g |
| Accessories | Operation manual (1 copy) Unit labels Case fixing band×2 Cover between terminals for 6-pin terminal block×3 |
Process signal input specifications
| Measuring Range | Range 1V: 1~5V Range 2V: ±5V Range 2A: 4~20mA Range 3A: ±20mA |
|---|---|
| Display | Offset: ±9999 Scaling: ±9999 |
| Input Impedance | Range 1V, Range 2V: Approx. 1MΩ Range 2A, Range 3A: Approx. 10Ω |
| Maximum Safe Input | Range 1V, Range 2V: ±100V Range 2A, Range 3A: ±50mA |
| Accuracy | Range 1V, Range 2V: ±(0.03% of rdg +2digit)(23°C±5°C 35~85%) Range 2A, Range 3A: ±(0.1% of rdg +3digit)(23°C±5°C 35~85%) |
| Sensor Power Supply | DC12V±10% 50mA or DC24V±10% 25mA |
| Sampling speed | Approx. 1000 times/sec. |
Comparison output specifications
| Trigger Value Range | -9999~9999 | |
|---|---|---|
| Hysteresis | Can be set in the range of 1 to 999 digits for each value. | |
| Comparison Operation | Depends on the sampling rate. | |
| Comparison Relay | Relay Contact Output | Maximun10ms |
| Number of Contacts | Relay contact ×3 | |
| Contact Rating | AC250V 2A(Resistive load) DC30V 2A(Resistive load) |
|
| Comparison Condition | – | |
| Supply voltage range: Displayed value>HI trigger value |
Judgment: HI | |
| Supply voltage range: LO trigger value&leDisplayed value&leHI trigger value |
Judgment: GO | |
| Supply voltage range: LO trigger value>Displayed value |
Judgment: LO | |
| Photo-coupler Output | Number of Output | Photo-coupler ×3 |
| Photo-coupler Output | 200µs | |
| Contact Rating | DC30V 20mA (Resistive load) | |
| Supply voltage range: Displayed value>HI trigger value |
HI | |
| Supply voltage range: HI trigger value≥Displayed value≥LO trigger value |
GO | |
| Supply voltage range: LO trigger value>Displayed value |
LO | |
Analog output specifications
| Load Resistance | 0~1V, 0~10V, 1~5V: 10kΩ or more 4~20mA: 550Ω or less |
|---|---|
| Accuracy | ±(0.5% of FS) |
| Ripple | 0~1V, 0~10V, 1~5V: ±50mVp-p 4~20mA: ±25mVp-p |
| Conversion Method | PWM conversion method |
| Resolution | Equivalent to max. 14 bits (depends on output display setting) |
| Scaling | Digital scaling |
| Response Time | Approx. 0.5 sec. |
BCD output specifications
| Output Type | Open collector output NPN type |
|---|---|
| Output Logic | Selectable (PC logic not selectable) |
| Rated Output | DC30V MAX. 10mA MAX. |
